./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2279e66d659d6de4a6f1e9cba0e3ed135a3304882c70e550497f0feeaae371b4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:24:57,096 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:24:57,136 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:24:57,141 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:24:57,144 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:24:57,164 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:24:57,165 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:24:57,165 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:24:57,166 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:24:57,166 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:24:57,166 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:24:57,167 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:24:57,167 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:24:57,167 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:24:57,167 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:24:57,167 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:24:57,168 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:24:57,168 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:24:57,168 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:24:57,168 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:24:57,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:24:57,168 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:24:57,168 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:24:57,168 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:24:57,168 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:24:57,168 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:24:57,169 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:24:57,169 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:24:57,169 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:24:57,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:24:57,169 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:24:57,169 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:24:57,169 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:24:57,169 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:24:57,170 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:24:57,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:24:57,170 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:24:57,170 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:24:57,170 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:24:57,170 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:24:57,170 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2279e66d659d6de4a6f1e9cba0e3ed135a3304882c70e550497f0feeaae371b4 [2025-02-08 01:24:57,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:24:57,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:24:57,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:24:57,384 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:24:57,384 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:24:57,385 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i [2025-02-08 01:24:58,564 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ce3623e1e/4901c68a0359434298d268f8af3de71e/FLAGccf930d07 [2025-02-08 01:24:58,978 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:24:58,979 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i [2025-02-08 01:24:59,009 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ce3623e1e/4901c68a0359434298d268f8af3de71e/FLAGccf930d07 [2025-02-08 01:24:59,022 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ce3623e1e/4901c68a0359434298d268f8af3de71e [2025-02-08 01:24:59,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:24:59,025 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:24:59,026 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:24:59,026 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:24:59,031 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:24:59,031 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:24:59" (1/1) ... [2025-02-08 01:24:59,031 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3231acc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:24:59, skipping insertion in model container [2025-02-08 01:24:59,032 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:24:59" (1/1) ... [2025-02-08 01:24:59,092 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:24:59,230 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4493,4506] [2025-02-08 01:24:59,237 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4553,4566] [2025-02-08 01:24:59,674 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:24:59,674 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:24:59,674 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:24:59,675 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:24:59,675 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:24:59,687 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:24:59,688 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:24:59,689 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:24:59,689 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:24:59,690 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:24:59,691 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:24:59,691 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:24:59,691 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:24:59,989 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:24:59,992 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:00,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:25:00,059 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:25:00,071 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4493,4506] [2025-02-08 01:25:00,074 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4553,4566] [2025-02-08 01:25:00,132 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:00,133 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:00,133 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:00,133 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:00,133 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:00,140 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:00,140 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:00,141 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:00,141 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:00,141 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:00,142 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:00,142 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:00,142 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:00,205 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:00,212 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:00,216 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7769-7780] [2025-02-08 01:25:00,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:25:00,386 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:25:00,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:00 WrapperNode [2025-02-08 01:25:00,387 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:25:00,388 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:25:00,388 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:25:00,388 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:25:00,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:00" (1/1) ... [2025-02-08 01:25:00,440 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:00" (1/1) ... [2025-02-08 01:25:00,489 INFO L138 Inliner]: procedures = 680, calls = 1678, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 656 [2025-02-08 01:25:00,493 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:25:00,493 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:25:00,494 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:25:00,494 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:25:00,505 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:00" (1/1) ... [2025-02-08 01:25:00,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:00" (1/1) ... [2025-02-08 01:25:00,510 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:00" (1/1) ... [2025-02-08 01:25:00,570 INFO L175 MemorySlicer]: Split 313 memory accesses to 6 slices as follows [238, 2, 55, 3, 9, 6]. 76 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 10, 1, 5, 0]. The 239 writes are split as follows [232, 0, 3, 1, 1, 2]. [2025-02-08 01:25:00,573 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:00" (1/1) ... [2025-02-08 01:25:00,574 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:00" (1/1) ... [2025-02-08 01:25:00,607 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:00" (1/1) ... [2025-02-08 01:25:00,610 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:00" (1/1) ... [2025-02-08 01:25:00,620 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:00" (1/1) ... [2025-02-08 01:25:00,623 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:00" (1/1) ... [2025-02-08 01:25:00,635 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:25:00,638 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:25:00,638 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:25:00,638 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:25:00,639 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:00" (1/1) ... [2025-02-08 01:25:00,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:25:00,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:25:00,679 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:25:00,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:25:00,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:25:00,704 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-08 01:25:00,704 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-08 01:25:00,704 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-08 01:25:00,704 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-08 01:25:00,704 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-08 01:25:00,704 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-08 01:25:00,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:25:00,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:25:00,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:25:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:25:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:25:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-08 01:25:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:25:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:25:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:25:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:25:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:25:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 01:25:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-08 01:25:00,705 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-08 01:25:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:25:00,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:25:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:25:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:25:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:25:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:25:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:25:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:25:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:25:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 01:25:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-02-08 01:25:00,706 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-02-08 01:25:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:25:00,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:25:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:25:00,706 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:25:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-02-08 01:25:00,706 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-02-08 01:25:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-02-08 01:25:00,707 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-02-08 01:25:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-08 01:25:00,707 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-08 01:25:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:25:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:25:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:25:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:25:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:25:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-08 01:25:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-02-08 01:25:00,707 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-02-08 01:25:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-02-08 01:25:00,707 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:25:00,708 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-02-08 01:25:00,708 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-08 01:25:00,708 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-08 01:25:00,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:25:00,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:25:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 01:25:00,954 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:25:00,960 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:25:01,006 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-08 01:25:01,028 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-02-08 01:25:01,043 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-08 01:25:01,093 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2796: havoc #t~ret81;havoc #t~ite83.base, #t~ite83.offset;havoc #t~ret82.base, #t~ret82.offset; [2025-02-08 01:25:01,160 INFO L1324 $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; [2025-02-08 01:25:01,166 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-08 01:25:01,182 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7390: havoc #t~ret683.base, #t~ret683.offset; [2025-02-08 01:25:06,399 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3417: havoc aws_array_list_back_~last_item_offset~0#1; [2025-02-08 01:25:06,400 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3426: havoc aws_array_list_back_#t~ret217#1; [2025-02-08 01:25:06,461 INFO L? ?]: Removed 120 outVars from TransFormulas that were not future-live. [2025-02-08 01:25:06,461 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:25:06,468 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:25:06,468 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:25:06,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:25:06 BoogieIcfgContainer [2025-02-08 01:25:06,469 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:25:06,470 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:25:06,470 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:25:06,473 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:25:06,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:24:59" (1/3) ... [2025-02-08 01:25:06,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6724ef9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:25:06, skipping insertion in model container [2025-02-08 01:25:06,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:00" (2/3) ... [2025-02-08 01:25:06,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6724ef9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:25:06, skipping insertion in model container [2025-02-08 01:25:06,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:25:06" (3/3) ... [2025-02-08 01:25:06,475 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_back_harness.i [2025-02-08 01:25:06,483 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:25:06,484 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_back_harness.i that has 18 procedures, 181 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-08 01:25:06,526 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:25:06,537 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;@8b8db9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:25:06,539 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:25:06,543 INFO L276 IsEmpty]: Start isEmpty. Operand has 181 states, 105 states have (on average 1.2095238095238094) internal successors, (127), 108 states have internal predecessors, (127), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2025-02-08 01:25:06,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-02-08 01:25:06,553 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:25:06,554 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:25:06,554 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:25:06,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:25:06,559 INFO L85 PathProgramCache]: Analyzing trace with hash -717503643, now seen corresponding path program 1 times [2025-02-08 01:25:06,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:25:06,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139464918] [2025-02-08 01:25:06,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:25:06,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:25:10,813 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-02-08 01:25:11,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-02-08 01:25:11,129 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:25:11,129 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:25:11,592 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2025-02-08 01:25:11,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:25:11,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139464918] [2025-02-08 01:25:11,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139464918] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:25:11,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980328021] [2025-02-08 01:25:11,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:25:11,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:25:11,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:25:11,597 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:25:11,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 01:25:15,817 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-02-08 01:25:16,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-02-08 01:25:16,226 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:25:16,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:25:16,242 INFO L256 TraceCheckSpWp]: Trace formula consists of 4267 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 01:25:16,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:25:16,264 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2025-02-08 01:25:16,264 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:25:16,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980328021] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:25:16,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:25:16,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-08 01:25:16,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168679878] [2025-02-08 01:25:16,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:25:16,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 01:25:16,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:25:16,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 01:25:16,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:25:16,295 INFO L87 Difference]: Start difference. First operand has 181 states, 105 states have (on average 1.2095238095238094) internal successors, (127), 108 states have internal predecessors, (127), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-08 01:25:16,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:25:16,335 INFO L93 Difference]: Finished difference Result 356 states and 503 transitions. [2025-02-08 01:25:16,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 01:25:16,336 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 128 [2025-02-08 01:25:16,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:25:16,344 INFO L225 Difference]: With dead ends: 356 [2025-02-08 01:25:16,344 INFO L226 Difference]: Without dead ends: 170 [2025-02-08 01:25:16,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:25:16,353 INFO L435 NwaCegarLoop]: 235 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, 235 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 [2025-02-08 01:25:16,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 01:25:16,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2025-02-08 01:25:16,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2025-02-08 01:25:16,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 99 states have (on average 1.1616161616161615) internal successors, (115), 100 states have internal predecessors, (115), 54 states have call successors, (54), 17 states have call predecessors, (54), 16 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2025-02-08 01:25:16,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 221 transitions. [2025-02-08 01:25:16,401 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 221 transitions. Word has length 128 [2025-02-08 01:25:16,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:25:16,402 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 221 transitions. [2025-02-08 01:25:16,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-08 01:25:16,402 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 221 transitions. [2025-02-08 01:25:16,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-02-08 01:25:16,408 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:25:16,408 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:25:16,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 01:25:16,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-08 01:25:16,609 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:25:16,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:25:16,609 INFO L85 PathProgramCache]: Analyzing trace with hash -687988633, now seen corresponding path program 1 times [2025-02-08 01:25:16,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:25:16,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441983784] [2025-02-08 01:25:16,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:25:16,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:25:20,424 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-02-08 01:25:20,514 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-02-08 01:25:20,514 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:25:20,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:25:21,526 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2025-02-08 01:25:21,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:25:21,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441983784] [2025-02-08 01:25:21,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441983784] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:25:21,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062958528] [2025-02-08 01:25:21,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:25:21,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:25:21,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:25:21,529 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:25:21,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 01:25:25,773 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-02-08 01:25:26,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-02-08 01:25:26,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:25:26,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:25:26,181 INFO L256 TraceCheckSpWp]: Trace formula consists of 4267 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 01:25:26,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:25:26,620 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2025-02-08 01:25:26,620 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:25:26,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062958528] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:25:26,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:25:26,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2025-02-08 01:25:26,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514905848] [2025-02-08 01:25:26,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:25:26,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:25:26,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:25:26,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:25:26,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:25:26,622 INFO L87 Difference]: Start difference. First operand 170 states and 221 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2025-02-08 01:25:27,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:25:27,389 INFO L93 Difference]: Finished difference Result 314 states and 414 transitions. [2025-02-08 01:25:27,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:25:27,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 128 [2025-02-08 01:25:27,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:25:27,393 INFO L225 Difference]: With dead ends: 314 [2025-02-08 01:25:27,393 INFO L226 Difference]: Without dead ends: 172 [2025-02-08 01:25:27,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:25:27,394 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 47 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-08 01:25:27,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 721 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-08 01:25:27,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2025-02-08 01:25:27,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2025-02-08 01:25:27,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 100 states have (on average 1.16) internal successors, (116), 102 states have internal predecessors, (116), 54 states have call successors, (54), 17 states have call predecessors, (54), 17 states have return successors, (57), 52 states have call predecessors, (57), 52 states have call successors, (57) [2025-02-08 01:25:27,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 227 transitions. [2025-02-08 01:25:27,406 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 227 transitions. Word has length 128 [2025-02-08 01:25:27,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:25:27,407 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 227 transitions. [2025-02-08 01:25:27,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2025-02-08 01:25:27,407 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 227 transitions. [2025-02-08 01:25:27,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-02-08 01:25:27,412 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:25:27,412 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:25:27,431 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 01:25:27,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:25:27,613 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:25:27,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:25:27,614 INFO L85 PathProgramCache]: Analyzing trace with hash -910476857, now seen corresponding path program 1 times [2025-02-08 01:25:27,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:25:27,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400759272] [2025-02-08 01:25:27,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:25:27,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:25:31,425 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-02-08 01:25:31,625 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-02-08 01:25:31,625 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:25:31,625 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:25:32,831 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2025-02-08 01:25:32,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:25:32,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400759272] [2025-02-08 01:25:32,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400759272] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:25:32,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107759502] [2025-02-08 01:25:32,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:25:32,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:25:32,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:25:32,836 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:25:32,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 01:25:36,963 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-02-08 01:25:37,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-02-08 01:25:37,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:25:37,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:25:37,412 INFO L256 TraceCheckSpWp]: Trace formula consists of 4521 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 01:25:37,417 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:25:38,436 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2025-02-08 01:25:38,437 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:25:38,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107759502] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:25:38,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:25:38,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2025-02-08 01:25:38,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649131054] [2025-02-08 01:25:38,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:25:38,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:25:38,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:25:38,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:25:38,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-02-08 01:25:38,439 INFO L87 Difference]: Start difference. First operand 172 states and 227 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2025-02-08 01:25:39,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:25:39,468 INFO L93 Difference]: Finished difference Result 276 states and 364 transitions. [2025-02-08 01:25:39,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:25:39,469 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 156 [2025-02-08 01:25:39,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:25:39,471 INFO L225 Difference]: With dead ends: 276 [2025-02-08 01:25:39,471 INFO L226 Difference]: Without dead ends: 172 [2025-02-08 01:25:39,471 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2025-02-08 01:25:39,472 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 50 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-08 01:25:39,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 903 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-08 01:25:39,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2025-02-08 01:25:39,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2025-02-08 01:25:39,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 100 states have (on average 1.16) internal successors, (116), 102 states have internal predecessors, (116), 54 states have call successors, (54), 17 states have call predecessors, (54), 17 states have return successors, (54), 52 states have call predecessors, (54), 52 states have call successors, (54) [2025-02-08 01:25:39,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 224 transitions. [2025-02-08 01:25:39,482 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 224 transitions. Word has length 156 [2025-02-08 01:25:39,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:25:39,482 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 224 transitions. [2025-02-08 01:25:39,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2025-02-08 01:25:39,482 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 224 transitions. [2025-02-08 01:25:39,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2025-02-08 01:25:39,483 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:25:39,484 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:25:39,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-08 01:25:39,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:25:39,684 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:25:39,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:25:39,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1863435610, now seen corresponding path program 2 times [2025-02-08 01:25:39,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:25:39,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662296417] [2025-02-08 01:25:39,685 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:25:39,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:25:43,432 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 170 statements into 2 equivalence classes. [2025-02-08 01:25:43,862 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 170 of 170 statements. [2025-02-08 01:25:43,862 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 01:25:43,862 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:25:45,352 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2025-02-08 01:25:45,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:25:45,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662296417] [2025-02-08 01:25:45,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662296417] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:25:45,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:25:45,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 01:25:45,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34353051] [2025-02-08 01:25:45,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:25:45,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 01:25:45,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:25:45,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 01:25:45,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:25:45,354 INFO L87 Difference]: Start difference. First operand 172 states and 224 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2025-02-08 01:25:46,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:25:46,802 INFO L93 Difference]: Finished difference Result 270 states and 351 transitions. [2025-02-08 01:25:46,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:25:46,803 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) Word has length 170 [2025-02-08 01:25:46,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:25:46,806 INFO L225 Difference]: With dead ends: 270 [2025-02-08 01:25:46,806 INFO L226 Difference]: Without dead ends: 170 [2025-02-08 01:25:46,807 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-02-08 01:25:46,808 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 57 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-08 01:25:46,809 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1270 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-08 01:25:46,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2025-02-08 01:25:46,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2025-02-08 01:25:46,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 99 states have (on average 1.1515151515151516) internal successors, (114), 100 states have internal predecessors, (114), 54 states have call successors, (54), 17 states have call predecessors, (54), 16 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2025-02-08 01:25:46,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 220 transitions. [2025-02-08 01:25:46,823 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 220 transitions. Word has length 170 [2025-02-08 01:25:46,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:25:46,824 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 220 transitions. [2025-02-08 01:25:46,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2025-02-08 01:25:46,824 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 220 transitions. [2025-02-08 01:25:46,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-02-08 01:25:46,825 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:25:46,826 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:25:46,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 01:25:46,826 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:25:46,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:25:46,826 INFO L85 PathProgramCache]: Analyzing trace with hash -687338298, now seen corresponding path program 1 times [2025-02-08 01:25:46,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:25:46,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313159988] [2025-02-08 01:25:46,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:25:46,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:25:50,552 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-02-08 01:25:50,672 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-02-08 01:25:50,672 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:25:50,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:25:52,343 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2025-02-08 01:25:52,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:25:52,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313159988] [2025-02-08 01:25:52,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313159988] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:25:52,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:25:52,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 01:25:52,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132898953] [2025-02-08 01:25:52,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:25:52,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:25:52,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:25:52,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:25:52,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:25:52,347 INFO L87 Difference]: Start difference. First operand 170 states and 220 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2025-02-08 01:25:56,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:26:00,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:26:05,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:26:06,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:26:06,337 INFO L93 Difference]: Finished difference Result 293 states and 382 transitions. [2025-02-08 01:26:06,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:26:06,339 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 198 [2025-02-08 01:26:06,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:26:06,342 INFO L225 Difference]: With dead ends: 293 [2025-02-08 01:26:06,342 INFO L226 Difference]: Without dead ends: 188 [2025-02-08 01:26:06,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:26:06,345 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 6 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2025-02-08 01:26:06,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1285 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 3 Unknown, 0 Unchecked, 13.8s Time] [2025-02-08 01:26:06,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2025-02-08 01:26:06,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 184. [2025-02-08 01:26:06,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 108 states have (on average 1.1481481481481481) internal successors, (124), 109 states have internal predecessors, (124), 58 states have call successors, (58), 17 states have call predecessors, (58), 17 states have return successors, (57), 57 states have call predecessors, (57), 56 states have call successors, (57) [2025-02-08 01:26:06,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 239 transitions. [2025-02-08 01:26:06,359 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 239 transitions. Word has length 198 [2025-02-08 01:26:06,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:26:06,359 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 239 transitions. [2025-02-08 01:26:06,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2025-02-08 01:26:06,359 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 239 transitions. [2025-02-08 01:26:06,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-02-08 01:26:06,360 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:26:06,361 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:26:06,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 01:26:06,361 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:26:06,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:26:06,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1215703899, now seen corresponding path program 1 times [2025-02-08 01:26:06,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:26:06,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569217596] [2025-02-08 01:26:06,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:26:06,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:26:09,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-02-08 01:26:10,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-02-08 01:26:10,038 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:26:10,038 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:26:12,368 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2025-02-08 01:26:12,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:26:12,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569217596] [2025-02-08 01:26:12,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569217596] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:26:12,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:26:12,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 01:26:12,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588481848] [2025-02-08 01:26:12,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:26:12,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 01:26:12,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:26:12,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 01:26:12,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:26:12,371 INFO L87 Difference]: Start difference. First operand 184 states and 239 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2025-02-08 01:26:16,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:26:20,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:26:22,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:26:22,222 INFO L93 Difference]: Finished difference Result 308 states and 405 transitions. [2025-02-08 01:26:22,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 01:26:22,223 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) Word has length 198 [2025-02-08 01:26:22,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:26:22,224 INFO L225 Difference]: With dead ends: 308 [2025-02-08 01:26:22,224 INFO L226 Difference]: Without dead ends: 209 [2025-02-08 01:26:22,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-08 01:26:22,226 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 14 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1565 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2025-02-08 01:26:22,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1565 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2025-02-08 01:26:22,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2025-02-08 01:26:22,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 190. [2025-02-08 01:26:22,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 111 states have (on average 1.1441441441441442) internal successors, (127), 112 states have internal predecessors, (127), 61 states have call successors, (61), 17 states have call predecessors, (61), 17 states have return successors, (60), 60 states have call predecessors, (60), 59 states have call successors, (60) [2025-02-08 01:26:22,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 248 transitions. [2025-02-08 01:26:22,239 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 248 transitions. Word has length 198 [2025-02-08 01:26:22,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:26:22,240 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 248 transitions. [2025-02-08 01:26:22,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2025-02-08 01:26:22,240 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 248 transitions. [2025-02-08 01:26:22,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-02-08 01:26:22,242 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:26:22,242 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:26:22,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 01:26:22,242 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:26:22,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:26:22,242 INFO L85 PathProgramCache]: Analyzing trace with hash 904583300, now seen corresponding path program 1 times [2025-02-08 01:26:22,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:26:22,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054421391] [2025-02-08 01:26:22,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:26:22,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:26:25,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-02-08 01:26:27,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-02-08 01:26:27,310 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:26:27,310 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:26:29,043 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2025-02-08 01:26:29,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:26:29,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054421391] [2025-02-08 01:26:29,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054421391] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:26:29,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712539795] [2025-02-08 01:26:29,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:26:29,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:26:29,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:26:29,046 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:26:29,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process