./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 8fc3dc66 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-?-8fc3dc6-m [2025-03-17 06:51:03,837 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 06:51:03,896 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 06:51:03,901 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 06:51:03,904 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 06:51:03,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 06:51:03,920 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 06:51:03,921 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 06:51:03,921 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 06:51:03,921 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 06:51:03,921 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 06:51:03,921 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 06:51:03,921 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 06:51:03,921 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 06:51:03,922 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 06:51:03,922 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 06:51:03,922 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 06:51:03,922 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 06:51:03,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 06:51:03,922 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 06:51:03,922 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 06:51:03,922 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 06:51:03,922 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 06:51:03,922 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 06:51:03,923 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 06:51:03,923 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 06:51:03,923 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 06:51:03,923 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 06:51:03,923 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 06:51:03,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 06:51:03,923 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 06:51:03,923 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 06:51:03,923 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 06:51:03,923 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 06:51:03,923 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 06:51:03,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 06:51:03,923 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 06:51:03,923 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 06:51:03,923 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 06:51:03,923 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 06:51:03,924 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 [2025-03-17 06:51:04,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 06:51:04,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 06:51:04,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 06:51:04,143 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 06:51:04,143 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 06:51:04,144 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2025-03-17 06:51:05,308 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85cb45afb/636cb7b272184f018facc89635367cd1/FLAG77341d019 [2025-03-17 06:51:05,800 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 06:51:05,800 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2025-03-17 06:51:05,835 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85cb45afb/636cb7b272184f018facc89635367cd1/FLAG77341d019 [2025-03-17 06:51:05,868 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85cb45afb/636cb7b272184f018facc89635367cd1 [2025-03-17 06:51:05,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 06:51:05,871 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 06:51:05,873 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 06:51:05,873 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 06:51:05,876 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 06:51:05,877 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:51:05" (1/1) ... [2025-03-17 06:51:05,877 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d31ac5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:05, skipping insertion in model container [2025-03-17 06:51:05,878 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:51:05" (1/1) ... [2025-03-17 06:51:05,947 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 06:51:06,143 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] [2025-03-17 06:51:06,150 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] [2025-03-17 06:51:06,611 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:06,612 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:06,613 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:06,613 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:06,614 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:06,621 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:06,622 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:06,623 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:06,623 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:06,624 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:06,625 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:06,625 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:06,625 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:06,899 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:06,905 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:06,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 06:51:06,974 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 06:51:06,984 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] [2025-03-17 06:51:06,989 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] [2025-03-17 06:51:07,042 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:07,043 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:07,044 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:07,044 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:07,045 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:07,050 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:07,052 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:07,053 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:07,053 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:07,054 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:07,055 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:07,055 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:07,055 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:07,107 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:07,111 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:51:07,116 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7747-7758] [2025-03-17 06:51:07,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 06:51:07,280 INFO L204 MainTranslator]: Completed translation [2025-03-17 06:51:07,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:07 WrapperNode [2025-03-17 06:51:07,281 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 06:51:07,282 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 06:51:07,282 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 06:51:07,282 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 06:51:07,286 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:07" (1/1) ... [2025-03-17 06:51:07,344 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:07" (1/1) ... [2025-03-17 06:51:07,419 INFO L138 Inliner]: procedures = 679, calls = 1682, calls flagged for inlining = 53, calls inlined = 9, statements flattened = 617 [2025-03-17 06:51:07,420 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 06:51:07,421 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 06:51:07,421 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 06:51:07,421 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 06:51:07,433 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:07" (1/1) ... [2025-03-17 06:51:07,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:07" (1/1) ... [2025-03-17 06:51:07,440 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:07" (1/1) ... [2025-03-17 06:51:07,490 INFO L175 MemorySlicer]: Split 306 memory accesses to 6 slices as follows [2, 238, 7, 3, 50, 6]. 78 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [2, 6, 5, 1, 10, 0]. The 238 writes are split as follows [0, 232, 0, 1, 3, 2]. [2025-03-17 06:51:07,491 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:07" (1/1) ... [2025-03-17 06:51:07,493 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:07" (1/1) ... [2025-03-17 06:51:07,524 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:07" (1/1) ... [2025-03-17 06:51:07,530 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:07" (1/1) ... [2025-03-17 06:51:07,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:07" (1/1) ... [2025-03-17 06:51:07,541 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:07" (1/1) ... [2025-03-17 06:51:07,553 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 06:51:07,554 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 06:51:07,554 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 06:51:07,554 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 06:51:07,555 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:07" (1/1) ... [2025-03-17 06:51:07,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 06:51:07,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:51:07,589 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) [2025-03-17 06:51:07,594 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 [2025-03-17 06:51:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-17 06:51:07,609 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-17 06:51:07,609 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-17 06:51:07,609 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-17 06:51:07,609 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 06:51:07,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 06:51:07,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 06:51:07,609 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 06:51:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-17 06:51:07,609 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-17 06:51:07,610 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 06:51:07,610 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-17 06:51:07,610 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-17 06:51:07,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 06:51:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 06:51:07,611 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-17 06:51:07,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-17 06:51:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 06:51:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 06:51:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 06:51:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 06:51:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 06:51:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 06:51:07,839 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 06:51:07,841 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 06:51:07,883 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-17 06:51:07,937 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-17 06:51:08,030 INFO L1322 $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; [2025-03-17 06:51:08,033 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-17 06:51:13,630 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-17 06:51:13,656 INFO L? ?]: Removed 104 outVars from TransFormulas that were not future-live. [2025-03-17 06:51:13,656 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 06:51:13,663 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 06:51:13,664 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 06:51:13,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:51:13 BoogieIcfgContainer [2025-03-17 06:51:13,664 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 06:51:13,668 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 06:51:13,668 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 06:51:13,671 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 06:51:13,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:51:05" (1/3) ... [2025-03-17 06:51:13,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e6eb47a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:51:13, skipping insertion in model container [2025-03-17 06:51:13,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:07" (2/3) ... [2025-03-17 06:51:13,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e6eb47a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:51:13, skipping insertion in model container [2025-03-17 06:51:13,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:51:13" (3/3) ... [2025-03-17 06:51:13,674 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_capacity_harness.i [2025-03-17 06:51:13,685 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 06:51:13,687 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_capacity_harness.i that has 13 procedures, 117 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-17 06:51:13,731 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 06:51:13,740 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;@1a4361ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 06:51:13,741 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 06:51:13,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 72 states have (on average 1.2083333333333333) internal successors, (87), 73 states have internal predecessors, (87), 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) [2025-03-17 06:51:13,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-03-17 06:51:13,750 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:51:13,751 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] [2025-03-17 06:51:13,751 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:51:13,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:51:13,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1400574971, now seen corresponding path program 1 times [2025-03-17 06:51:13,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:51:13,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660596107] [2025-03-17 06:51:13,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:51:13,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:51:18,188 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-03-17 06:51:18,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-03-17 06:51:18,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:51:18,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:51:18,858 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2025-03-17 06:51:18,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:51:18,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660596107] [2025-03-17 06:51:18,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660596107] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:51:18,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849669068] [2025-03-17 06:51:18,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:51:18,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:51:18,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:51:18,865 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) [2025-03-17 06:51:18,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 06:51:23,241 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-03-17 06:51:23,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-03-17 06:51:23,809 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:51:23,809 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:51:23,832 INFO L256 TraceCheckSpWp]: Trace formula consists of 4068 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 06:51:23,842 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:51:23,870 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2025-03-17 06:51:23,870 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 06:51:23,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849669068] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:51:23,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 06:51:23,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 06:51:23,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591472295] [2025-03-17 06:51:23,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:51:23,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 06:51:23,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:51:23,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 06:51:23,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 06:51:23,906 INFO L87 Difference]: Start difference. First operand has 117 states, 72 states have (on average 1.2083333333333333) internal successors, (87), 73 states have internal predecessors, (87), 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 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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) [2025-03-17 06:51:23,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:51:23,937 INFO L93 Difference]: Finished difference Result 228 states and 311 transitions. [2025-03-17 06:51:23,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 06:51:23,941 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 73 [2025-03-17 06:51:23,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:51:23,946 INFO L225 Difference]: With dead ends: 228 [2025-03-17 06:51:23,946 INFO L226 Difference]: Without dead ends: 114 [2025-03-17 06:51:23,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 06:51:23,951 INFO L435 NwaCegarLoop]: 147 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, 147 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 [2025-03-17 06:51:23,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 06:51:23,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2025-03-17 06:51:23,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2025-03-17 06:51:23,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 70 states have (on average 1.1857142857142857) internal successors, (83), 71 states have internal predecessors, (83), 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) [2025-03-17 06:51:23,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 144 transitions. [2025-03-17 06:51:23,984 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 144 transitions. Word has length 73 [2025-03-17 06:51:23,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:51:23,984 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 144 transitions. [2025-03-17 06:51:23,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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) [2025-03-17 06:51:23,984 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 144 transitions. [2025-03-17 06:51:23,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-03-17 06:51:23,986 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:51:23,987 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] [2025-03-17 06:51:24,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 06:51:24,191 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 [2025-03-17 06:51:24,191 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:51:24,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:51:24,192 INFO L85 PathProgramCache]: Analyzing trace with hash -336447263, now seen corresponding path program 1 times [2025-03-17 06:51:24,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:51:24,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928648233] [2025-03-17 06:51:24,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:51:24,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:51:28,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-03-17 06:51:28,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-03-17 06:51:28,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:51:28,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:51:29,401 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-03-17 06:51:29,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:51:29,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928648233] [2025-03-17 06:51:29,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928648233] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:51:29,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039940689] [2025-03-17 06:51:29,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:51:29,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:51:29,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:51:29,404 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) [2025-03-17 06:51:29,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 06:51:33,658 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-03-17 06:51:34,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-03-17 06:51:34,091 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:51:34,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:51:34,111 INFO L256 TraceCheckSpWp]: Trace formula consists of 4068 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 06:51:34,116 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:51:34,585 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-03-17 06:51:34,585 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 06:51:34,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039940689] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:51:34,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 06:51:34,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2025-03-17 06:51:34,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689306672] [2025-03-17 06:51:34,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:51:34,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 06:51:34,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:51:34,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 06:51:34,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-17 06:51:34,587 INFO L87 Difference]: Start difference. First operand 114 states and 144 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2025-03-17 06:51:35,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:51:35,163 INFO L93 Difference]: Finished difference Result 194 states and 249 transitions. [2025-03-17 06:51:35,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 06:51:35,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 73 [2025-03-17 06:51:35,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:51:35,167 INFO L225 Difference]: With dead ends: 194 [2025-03-17 06:51:35,167 INFO L226 Difference]: Without dead ends: 116 [2025-03-17 06:51:35,168 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-17 06:51:35,169 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 32 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 06:51:35,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 466 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 06:51:35,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2025-03-17 06:51:35,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2025-03-17 06:51:35,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 71 states have (on average 1.1830985915492958) internal successors, (84), 73 states have internal predecessors, (84), 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) [2025-03-17 06:51:35,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 147 transitions. [2025-03-17 06:51:35,180 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 147 transitions. Word has length 73 [2025-03-17 06:51:35,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:51:35,180 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 147 transitions. [2025-03-17 06:51:35,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2025-03-17 06:51:35,180 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 147 transitions. [2025-03-17 06:51:35,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-03-17 06:51:35,182 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:51:35,182 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] [2025-03-17 06:51:35,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 06:51:35,383 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,SelfDestructingSolverStorable1 [2025-03-17 06:51:35,383 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:51:35,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:51:35,383 INFO L85 PathProgramCache]: Analyzing trace with hash -571856629, now seen corresponding path program 1 times [2025-03-17 06:51:35,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:51:35,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72603337] [2025-03-17 06:51:35,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:51:35,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:51:39,421 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-17 06:51:39,546 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-17 06:51:39,547 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:51:39,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:51:40,822 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-03-17 06:51:40,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:51:40,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72603337] [2025-03-17 06:51:40,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72603337] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:51:40,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382690571] [2025-03-17 06:51:40,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:51:40,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:51:40,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:51:40,827 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) [2025-03-17 06:51:40,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 06:51:45,115 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-17 06:51:45,481 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-17 06:51:45,481 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:51:45,481 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:51:45,499 INFO L256 TraceCheckSpWp]: Trace formula consists of 4195 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 06:51:45,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:51:46,453 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-17 06:51:46,453 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 06:51:46,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382690571] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:51:46,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 06:51:46,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2025-03-17 06:51:46,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395533311] [2025-03-17 06:51:46,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:51:46,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 06:51:46,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:51:46,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 06:51:46,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-03-17 06:51:46,457 INFO L87 Difference]: Start difference. First operand 116 states and 147 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2025-03-17 06:51:47,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:51:47,469 INFO L93 Difference]: Finished difference Result 184 states and 231 transitions. [2025-03-17 06:51:47,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 06:51:47,471 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 88 [2025-03-17 06:51:47,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:51:47,472 INFO L225 Difference]: With dead ends: 184 [2025-03-17 06:51:47,472 INFO L226 Difference]: Without dead ends: 114 [2025-03-17 06:51:47,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2025-03-17 06:51:47,473 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 30 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-17 06:51:47,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 593 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-17 06:51:47,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2025-03-17 06:51:47,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2025-03-17 06:51:47,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 70 states have (on average 1.1714285714285715) internal successors, (82), 71 states have internal predecessors, (82), 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) [2025-03-17 06:51:47,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 143 transitions. [2025-03-17 06:51:47,493 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 143 transitions. Word has length 88 [2025-03-17 06:51:47,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:51:47,493 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 143 transitions. [2025-03-17 06:51:47,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2025-03-17 06:51:47,494 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 143 transitions. [2025-03-17 06:51:47,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-03-17 06:51:47,496 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:51:47,499 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] [2025-03-17 06:51:47,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 06:51:47,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:51:47,701 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:51:47,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:51:47,701 INFO L85 PathProgramCache]: Analyzing trace with hash 996074247, now seen corresponding path program 1 times [2025-03-17 06:51:47,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:51:47,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087105078] [2025-03-17 06:51:47,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:51:47,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:51:51,538 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-03-17 06:51:54,362 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-03-17 06:51:54,362 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:51:54,362 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 06:51:54,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [602460906] [2025-03-17 06:51:54,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:51:54,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:51:54,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:51:54,396 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) [2025-03-17 06:51:54,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 06:51:58,819 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes.