./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 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_priority_queue_init_static_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 d7eaf0344f6f57c66c46804220c62b0485b08b4ef0e684c487eaec2203e797bb --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:25:45,141 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:25:45,177 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:25:45,180 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:25:45,180 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:25:45,193 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:25:45,193 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:25:45,193 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:25:45,193 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:25:45,194 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:25:45,194 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:25:45,194 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:25:45,194 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:25:45,194 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:25:45,194 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:25:45,194 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:25:45,194 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:25:45,194 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:25:45,195 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:25:45,195 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:25:45,195 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:25:45,195 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:25:45,195 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:25:45,195 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:25:45,195 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:25:45,195 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:25:45,195 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:25:45,195 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:25:45,195 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:25:45,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:25:45,196 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:25:45,196 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:25:45,196 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:25:45,196 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:25:45,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:25:45,196 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:25:45,196 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:25:45,196 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:25:45,196 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:25:45,197 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:25:45,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:25:45,197 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:25:45,197 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:25:45,197 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:25:45,197 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:25:45,197 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 -> d7eaf0344f6f57c66c46804220c62b0485b08b4ef0e684c487eaec2203e797bb [2025-01-09 17:25:45,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:25:45,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:25:45,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:25:45,428 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:25:45,428 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:25:45,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2025-01-09 17:25:46,634 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8f0bd00f8/46fed70be3cd4f94adbfaeb501748915/FLAG970d2e36b [2025-01-09 17:25:47,105 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:25:47,106 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2025-01-09 17:25:47,126 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8f0bd00f8/46fed70be3cd4f94adbfaeb501748915/FLAG970d2e36b [2025-01-09 17:25:47,136 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8f0bd00f8/46fed70be3cd4f94adbfaeb501748915 [2025-01-09 17:25:47,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:25:47,139 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:25:47,140 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:25:47,140 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:25:47,143 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:25:47,143 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:25:47" (1/1) ... [2025-01-09 17:25:47,144 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f6eab4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:47, skipping insertion in model container [2025-01-09 17:25:47,144 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:25:47" (1/1) ... [2025-01-09 17:25:47,190 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:25:47,329 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_priority_queue_init_static_harness.i[4504,4517] [2025-01-09 17:25:47,334 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_priority_queue_init_static_harness.i[4564,4577] [2025-01-09 17:25:47,741 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:47,742 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:47,742 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:47,742 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:47,743 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:47,751 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:47,751 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:47,752 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:47,753 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:48,019 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:48,020 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:48,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:25:48,090 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:25:48,101 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_priority_queue_init_static_harness.i[4504,4517] [2025-01-09 17:25:48,101 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_priority_queue_init_static_harness.i[4564,4577] [2025-01-09 17:25:48,157 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:48,157 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:48,157 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:48,158 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:48,158 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:48,162 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:48,163 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:48,163 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:48,163 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:48,225 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:48,228 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:48,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7703-7714] [2025-01-09 17:25:48,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:25:48,411 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:25:48,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:48 WrapperNode [2025-01-09 17:25:48,411 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:25:48,412 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:25:48,412 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:25:48,412 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:25:48,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:48" (1/1) ... [2025-01-09 17:25:48,467 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:48" (1/1) ... [2025-01-09 17:25:48,537 INFO L138 Inliner]: procedures = 678, calls = 1525, calls flagged for inlining = 53, calls inlined = 9, statements flattened = 683 [2025-01-09 17:25:48,537 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:25:48,538 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:25:48,538 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:25:48,538 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:25:48,545 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:48" (1/1) ... [2025-01-09 17:25:48,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:48" (1/1) ... [2025-01-09 17:25:48,549 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:48" (1/1) ... [2025-01-09 17:25:48,604 INFO L175 MemorySlicer]: Split 296 memory accesses to 5 slices as follows [2, 238, 49, 2, 5]. 80 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 6, 2, 0, 5]. The 252 writes are split as follows [0, 232, 20, 0, 0]. [2025-01-09 17:25:48,604 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:48" (1/1) ... [2025-01-09 17:25:48,604 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:48" (1/1) ... [2025-01-09 17:25:48,631 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:48" (1/1) ... [2025-01-09 17:25:48,635 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:48" (1/1) ... [2025-01-09 17:25:48,637 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:48" (1/1) ... [2025-01-09 17:25:48,641 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:48" (1/1) ... [2025-01-09 17:25:48,643 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:48" (1/1) ... [2025-01-09 17:25:48,647 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:25:48,648 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:25:48,648 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:25:48,648 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:25:48,649 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:48" (1/1) ... [2025-01-09 17:25:48,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:25:48,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:25:48,678 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) [2025-01-09 17:25:48,680 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 [2025-01-09 17:25:48,697 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-01-09 17:25:48,697 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-01-09 17:25:48,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:25:48,697 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-01-09 17:25:48,698 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-01-09 17:25:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:25:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:25:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:25:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:25:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:25:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:25:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:25:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:25:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:25:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:25:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 17:25:48,699 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 17:25:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:25:48,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:25:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:25:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:25:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:25:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:25:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:25:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:25:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:25:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:25:48,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:25:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:25:48,700 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-01-09 17:25:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 17:25:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-01-09 17:25:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:25:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 17:25:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 17:25:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:25:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:25:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:25:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:25:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:25:48,703 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2025-01-09 17:25:48,703 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2025-01-09 17:25:48,703 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-01-09 17:25:48,703 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-01-09 17:25:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:25:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:25:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:25:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:25:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:25:48,928 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:25:48,929 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:25:54,999 INFO L? ?]: Removed 134 outVars from TransFormulas that were not future-live. [2025-01-09 17:25:54,999 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:25:55,010 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:25:55,010 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 17:25:55,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:25:55 BoogieIcfgContainer [2025-01-09 17:25:55,010 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:25:55,013 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:25:55,014 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:25:55,016 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:25:55,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:25:47" (1/3) ... [2025-01-09 17:25:55,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31bbba84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:25:55, skipping insertion in model container [2025-01-09 17:25:55,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:48" (2/3) ... [2025-01-09 17:25:55,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31bbba84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:25:55, skipping insertion in model container [2025-01-09 17:25:55,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:25:55" (3/3) ... [2025-01-09 17:25:55,019 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_static_harness.i [2025-01-09 17:25:55,030 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:25:55,031 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_init_static_harness.i that has 14 procedures, 165 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-01-09 17:25:55,075 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:25:55,084 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;@7d990823, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:25:55,084 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:25:55,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 103 states have (on average 1.203883495145631) internal successors, (124), 103 states have internal predecessors, (124), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2025-01-09 17:25:55,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-01-09 17:25:55,098 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:25:55,099 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 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] [2025-01-09 17:25:55,100 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:25:55,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:25:55,104 INFO L85 PathProgramCache]: Analyzing trace with hash -630352883, now seen corresponding path program 1 times [2025-01-09 17:25:55,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:25:55,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156559313] [2025-01-09 17:25:55,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:25:55,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:25:59,415 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-01-09 17:25:59,664 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-01-09 17:25:59,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:25:59,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:26:00,054 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2025-01-09 17:26:00,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:26:00,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156559313] [2025-01-09 17:26:00,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156559313] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:26:00,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449959885] [2025-01-09 17:26:00,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:26:00,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:26:00,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:26:00,060 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) [2025-01-09 17:26:00,061 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 [2025-01-09 17:26:04,369 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-01-09 17:26:04,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-01-09 17:26:04,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:26:04,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:26:04,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 4467 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 17:26:04,820 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:26:04,838 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2025-01-09 17:26:04,840 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:26:04,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449959885] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:26:04,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:26:04,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 17:26:04,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140755572] [2025-01-09 17:26:04,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:26:04,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 17:26:04,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:26:04,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 17:26:04,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:26:04,864 INFO L87 Difference]: Start difference. First operand has 165 states, 103 states have (on average 1.203883495145631) internal successors, (124), 103 states have internal predecessors, (124), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2025-01-09 17:26:04,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:26:04,897 INFO L93 Difference]: Finished difference Result 306 states and 434 transitions. [2025-01-09 17:26:04,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 17:26:04,898 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 155 [2025-01-09 17:26:04,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:26:04,903 INFO L225 Difference]: With dead ends: 306 [2025-01-09 17:26:04,904 INFO L226 Difference]: Without dead ends: 159 [2025-01-09 17:26:04,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:26:04,907 INFO L435 NwaCegarLoop]: 216 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, 216 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 [2025-01-09 17:26:04,908 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:26:04,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2025-01-09 17:26:04,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2025-01-09 17:26:04,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 97 states have (on average 1.175257731958763) internal successors, (114), 98 states have internal predecessors, (114), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2025-01-09 17:26:04,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 209 transitions. [2025-01-09 17:26:04,955 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 209 transitions. Word has length 155 [2025-01-09 17:26:04,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:26:04,957 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 209 transitions. [2025-01-09 17:26:04,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2025-01-09 17:26:04,957 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 209 transitions. [2025-01-09 17:26:04,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2025-01-09 17:26:04,961 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:26:04,961 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:26:04,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 17:26:05,166 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 [2025-01-09 17:26:05,166 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:26:05,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:26:05,167 INFO L85 PathProgramCache]: Analyzing trace with hash -788555839, now seen corresponding path program 1 times [2025-01-09 17:26:05,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:26:05,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103968617] [2025-01-09 17:26:05,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:26:05,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:26:09,068 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 172 statements into 1 equivalence classes. [2025-01-09 17:26:09,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 172 of 172 statements. [2025-01-09 17:26:09,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:26:09,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:26:10,556 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2025-01-09 17:26:10,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:26:10,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103968617] [2025-01-09 17:26:10,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103968617] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:26:10,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:26:10,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 17:26:10,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643597858] [2025-01-09 17:26:10,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:26:10,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 17:26:10,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:26:10,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 17:26:10,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 17:26:10,558 INFO L87 Difference]: Start difference. First operand 159 states and 209 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 5 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) [2025-01-09 17:26:12,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:26:12,128 INFO L93 Difference]: Finished difference Result 253 states and 328 transitions. [2025-01-09 17:26:12,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 17:26:12,129 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 5 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) Word has length 172 [2025-01-09 17:26:12,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:26:12,132 INFO L225 Difference]: With dead ends: 253 [2025-01-09 17:26:12,132 INFO L226 Difference]: Without dead ends: 161 [2025-01-09 17:26:12,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-01-09 17:26:12,133 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 38 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-01-09 17:26:12,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 1002 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-01-09 17:26:12,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2025-01-09 17:26:12,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2025-01-09 17:26:12,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 98 states have (on average 1.1734693877551021) internal successors, (115), 100 states have internal predecessors, (115), 48 states have call successors, (48), 13 states have call predecessors, (48), 14 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2025-01-09 17:26:12,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 212 transitions. [2025-01-09 17:26:12,145 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 212 transitions. Word has length 172 [2025-01-09 17:26:12,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:26:12,147 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 212 transitions. [2025-01-09 17:26:12,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 5 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) [2025-01-09 17:26:12,147 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 212 transitions. [2025-01-09 17:26:12,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-01-09 17:26:12,150 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:26:12,151 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:26:12,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 17:26:12,153 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:26:12,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:26:12,154 INFO L85 PathProgramCache]: Analyzing trace with hash 913666187, now seen corresponding path program 1 times [2025-01-09 17:26:12,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:26:12,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433230398] [2025-01-09 17:26:12,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:26:12,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:26:16,115 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 17:26:16,240 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 17:26:16,240 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:26:16,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:26:17,362 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2025-01-09 17:26:17,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:26:17,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433230398] [2025-01-09 17:26:17,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433230398] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:26:17,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:26:17,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 17:26:17,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190775284] [2025-01-09 17:26:17,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:26:17,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 17:26:17,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:26:17,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 17:26:17,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 17:26:17,364 INFO L87 Difference]: Start difference. First operand 161 states and 212 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2025-01-09 17:26:17,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:26:17,781 INFO L93 Difference]: Finished difference Result 274 states and 356 transitions. [2025-01-09 17:26:17,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 17:26:17,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 187 [2025-01-09 17:26:17,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:26:17,784 INFO L225 Difference]: With dead ends: 274 [2025-01-09 17:26:17,784 INFO L226 Difference]: Without dead ends: 161 [2025-01-09 17:26:17,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 17:26:17,787 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 6 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 17:26:17,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1003 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 17:26:17,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2025-01-09 17:26:17,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2025-01-09 17:26:17,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 98 states have (on average 1.163265306122449) internal successors, (114), 100 states have internal predecessors, (114), 48 states have call successors, (48), 13 states have call predecessors, (48), 14 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2025-01-09 17:26:17,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 211 transitions. [2025-01-09 17:26:17,803 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 211 transitions. Word has length 187 [2025-01-09 17:26:17,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:26:17,804 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 211 transitions. [2025-01-09 17:26:17,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2025-01-09 17:26:17,804 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 211 transitions. [2025-01-09 17:26:17,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-01-09 17:26:17,806 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:26:17,806 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:26:17,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 17:26:17,806 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:26:17,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:26:17,806 INFO L85 PathProgramCache]: Analyzing trace with hash 887706630, now seen corresponding path program 1 times [2025-01-09 17:26:17,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:26:17,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12051459] [2025-01-09 17:26:17,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:26:17,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:26:21,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-01-09 17:26:22,481 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-01-09 17:26:22,482 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:26:22,482 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:26:23,891 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2025-01-09 17:26:23,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:26:23,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12051459] [2025-01-09 17:26:23,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12051459] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:26:23,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:26:23,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 17:26:23,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487426648] [2025-01-09 17:26:23,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:26:23,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 17:26:23,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:26:23,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 17:26:23,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 17:26:23,894 INFO L87 Difference]: Start difference. First operand 161 states and 211 transitions. Second operand has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2025-01-09 17:26:24,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:26:24,283 INFO L93 Difference]: Finished difference Result 275 states and 357 transitions. [2025-01-09 17:26:24,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 17:26:24,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 188 [2025-01-09 17:26:24,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:26:24,287 INFO L225 Difference]: With dead ends: 275 [2025-01-09 17:26:24,287 INFO L226 Difference]: Without dead ends: 162 [2025-01-09 17:26:24,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-01-09 17:26:24,288 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 6 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 17:26:24,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1003 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 17:26:24,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2025-01-09 17:26:24,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2025-01-09 17:26:24,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 99 states have (on average 1.1616161616161615) internal successors, (115), 101 states have internal predecessors, (115), 48 states have call successors, (48), 13 states have call predecessors, (48), 14 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2025-01-09 17:26:24,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 212 transitions. [2025-01-09 17:26:24,312 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 212 transitions. Word has length 188 [2025-01-09 17:26:24,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:26:24,312 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 212 transitions. [2025-01-09 17:26:24,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2025-01-09 17:26:24,313 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 212 transitions. [2025-01-09 17:26:24,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2025-01-09 17:26:24,316 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:26:24,316 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:26:24,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 17:26:24,316 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:26:24,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:26:24,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1355200015, now seen corresponding path program 1 times [2025-01-09 17:26:24,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:26:24,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925238468] [2025-01-09 17:26:24,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:26:24,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:26:27,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 189 statements into 1 equivalence classes. [2025-01-09 17:26:28,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 189 of 189 statements. [2025-01-09 17:26:28,650 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:26:28,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:26:30,362 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2025-01-09 17:26:30,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:26:30,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925238468] [2025-01-09 17:26:30,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925238468] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:26:30,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824008522] [2025-01-09 17:26:30,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:26:30,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:26:30,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:26:30,365 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) [2025-01-09 17:26:30,366 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 [2025-01-09 17:26:34,649 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 189 statements into 1 equivalence classes. [2025-01-09 17:26:35,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 189 of 189 statements. [2025-01-09 17:26:35,094 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:26:35,094 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:26:35,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 4694 conjuncts, 102 conjuncts are in the unsatisfiable core [2025-01-09 17:26:35,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:26:35,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-01-09 17:26:40,333 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2025-01-09 17:26:40,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2025-01-09 17:26:44,858 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2025-01-09 17:26:44,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2025-01-09 17:27:01,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-01-09 17:27:03,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2025-01-09 17:27:07,401 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 169 proven. 30 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2025-01-09 17:27:07,401 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 17:27:08,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824008522] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:27:08,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 17:27:08,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 27] total 34 [2025-01-09 17:27:08,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879945973] [2025-01-09 17:27:08,985 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 17:27:08,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-01-09 17:27:08,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:27:08,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-01-09 17:27:08,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=1053, Unknown=0, NotChecked=0, Total=1190 [2025-01-09 17:27:08,988 INFO L87 Difference]: Start difference. First operand 162 states and 212 transitions. Second operand has 34 states, 30 states have (on average 4.166666666666667) internal successors, (125), 30 states have internal predecessors, (125), 16 states have call successors, (65), 8 states have call predecessors, (65), 10 states have return successors, (64), 16 states have call predecessors, (64), 16 states have call successors, (64) [2025-01-09 17:27:13,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 17:27:17,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []