./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f5906986fe70be99cb7145aeb70b9be3804e6f6ae12fcaa8e449985abfd2c954 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 03:01:13,805 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 03:01:13,857 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 03:01:13,860 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 03:01:13,861 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 03:01:13,882 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 03:01:13,883 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 03:01:13,883 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 03:01:13,884 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 03:01:13,884 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 03:01:13,885 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 03:01:13,885 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 03:01:13,885 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 03:01:13,885 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 03:01:13,885 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 03:01:13,885 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 03:01:13,885 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 03:01:13,885 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 03:01:13,885 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 03:01:13,885 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 03:01:13,885 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 03:01:13,885 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 03:01:13,885 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 03:01:13,885 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 03:01:13,885 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 03:01:13,886 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 03:01:13,886 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 03:01:13,886 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 03:01:13,886 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 03:01:13,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 03:01:13,887 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 03:01:13,887 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 03:01:13,887 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 03:01:13,887 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 03:01:13,887 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 03:01:13,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 03:01:13,887 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 03:01:13,887 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 03:01:13,887 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 03:01:13,887 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 03:01:13,887 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5906986fe70be99cb7145aeb70b9be3804e6f6ae12fcaa8e449985abfd2c954 [2025-03-04 03:01:14,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 03:01:14,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 03:01:14,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 03:01:14,100 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 03:01:14,100 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 03:01:14,101 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness_negated.i [2025-03-04 03:01:15,235 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3df43e4c/6271511690b644dfa576e91f56d7ba13/FLAG585d45a2f [2025-03-04 03:01:15,605 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 03:01:15,606 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness_negated.i [2025-03-04 03:01:15,627 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3df43e4c/6271511690b644dfa576e91f56d7ba13/FLAG585d45a2f [2025-03-04 03:01:15,640 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3df43e4c/6271511690b644dfa576e91f56d7ba13 [2025-03-04 03:01:15,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 03:01:15,643 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 03:01:15,644 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 03:01:15,644 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 03:01:15,648 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 03:01:15,648 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:01:15" (1/1) ... [2025-03-04 03:01:15,651 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f603583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:15, skipping insertion in model container [2025-03-04 03:01:15,651 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:01:15" (1/1) ... [2025-03-04 03:01:15,695 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 03:01:15,888 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness_negated.i[4501,4514] [2025-03-04 03:01:15,894 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness_negated.i[4561,4574] [2025-03-04 03:01:16,380 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:16,380 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:16,381 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:16,381 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:16,382 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:16,389 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:16,390 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:16,391 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:16,391 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:16,701 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:16,702 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:16,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 03:01:16,766 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 03:01:16,775 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness_negated.i[4501,4514] [2025-03-04 03:01:16,775 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness_negated.i[4561,4574] [2025-03-04 03:01:16,812 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:16,813 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:16,813 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:16,813 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:16,814 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:16,819 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:16,820 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:16,821 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:16,821 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:16,870 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:16,872 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:16,878 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7671-7682] [2025-03-04 03:01:16,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 03:01:17,026 INFO L204 MainTranslator]: Completed translation [2025-03-04 03:01:17,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:17 WrapperNode [2025-03-04 03:01:17,026 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 03:01:17,027 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 03:01:17,027 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 03:01:17,027 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 03:01:17,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:17" (1/1) ... [2025-03-04 03:01:17,079 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:17" (1/1) ... [2025-03-04 03:01:17,117 INFO L138 Inliner]: procedures = 678, calls = 1548, calls flagged for inlining = 54, calls inlined = 10, statements flattened = 698 [2025-03-04 03:01:17,117 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 03:01:17,118 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 03:01:17,118 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 03:01:17,118 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 03:01:17,126 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:17" (1/1) ... [2025-03-04 03:01:17,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:17" (1/1) ... [2025-03-04 03:01:17,131 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:17" (1/1) ... [2025-03-04 03:01:17,211 INFO L175 MemorySlicer]: Split 338 memory accesses to 6 slices as follows [3, 6, 2, 238, 82, 7]. 70 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [1, 0, 2, 6, 10, 5]. The 252 writes are split as follows [1, 2, 0, 232, 17, 0]. [2025-03-04 03:01:17,213 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:17" (1/1) ... [2025-03-04 03:01:17,213 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:17" (1/1) ... [2025-03-04 03:01:17,244 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:17" (1/1) ... [2025-03-04 03:01:17,250 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:17" (1/1) ... [2025-03-04 03:01:17,255 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:17" (1/1) ... [2025-03-04 03:01:17,260 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:17" (1/1) ... [2025-03-04 03:01:17,272 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 03:01:17,273 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 03:01:17,273 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 03:01:17,273 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 03:01:17,274 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:17" (1/1) ... [2025-03-04 03:01:17,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 03:01:17,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:01:17,303 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 03:01:17,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 03:01:17,323 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-03-04 03:01:17,323 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-03-04 03:01:17,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 03:01:17,324 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-04 03:01:17,324 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-04 03:01:17,324 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-04 03:01:17,324 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-04 03:01:17,324 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 03:01:17,324 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 03:01:17,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-04 03:01:17,326 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 03:01:17,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-03-04 03:01:17,326 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 03:01:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 03:01:17,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 03:01:17,327 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-04 03:01:17,327 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-04 03:01:17,327 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-04 03:01:17,327 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-03-04 03:01:17,327 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 03:01:17,327 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 03:01:17,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 03:01:17,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 03:01:17,328 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 03:01:17,328 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 03:01:17,328 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-04 03:01:17,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-04 03:01:17,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 03:01:17,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 03:01:17,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 03:01:17,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 03:01:17,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 03:01:17,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 03:01:17,329 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2025-03-04 03:01:17,329 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2025-03-04 03:01:17,329 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-04 03:01:17,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-04 03:01:17,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 03:01:17,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 03:01:17,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 03:01:17,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 03:01:17,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 03:01:17,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 03:01:17,575 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 03:01:17,577 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 03:01:17,608 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-04 03:01:17,653 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-04 03:01:17,674 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-04 03:01:17,797 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7462: havoc aws_priority_queue_backpointers_valid_#t~ret686#1;havoc aws_priority_queue_backpointers_valid_#t~short687#1; [2025-03-04 03:01:17,861 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-03-04 03:01:17,864 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 03:01:22,851 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7506: havoc aws_priority_queue_capacity_#t~ret696#1; [2025-03-04 03:01:22,900 INFO L? ?]: Removed 145 outVars from TransFormulas that were not future-live. [2025-03-04 03:01:22,900 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 03:01:22,912 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 03:01:22,913 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 03:01:22,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:01:22 BoogieIcfgContainer [2025-03-04 03:01:22,913 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 03:01:22,916 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 03:01:22,916 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 03:01:22,920 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 03:01:22,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:01:15" (1/3) ... [2025-03-04 03:01:22,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d04b2da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:01:22, skipping insertion in model container [2025-03-04 03:01:22,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:17" (2/3) ... [2025-03-04 03:01:22,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d04b2da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:01:22, skipping insertion in model container [2025-03-04 03:01:22,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:01:22" (3/3) ... [2025-03-04 03:01:22,923 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_capacity_harness_negated.i [2025-03-04 03:01:22,935 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 03:01:22,936 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_capacity_harness_negated.i that has 18 procedures, 184 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-04 03:01:22,979 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 03:01:22,988 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;@7ee0ec09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 03:01:22,988 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 03:01:22,992 INFO L276 IsEmpty]: Start isEmpty. Operand has 184 states, 118 states have (on average 1.2033898305084745) internal successors, (142), 119 states have internal predecessors, (142), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2025-03-04 03:01:23,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-03-04 03:01:23,003 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:01:23,004 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 2, 2, 2, 2, 2, 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] [2025-03-04 03:01:23,005 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:01:23,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:01:23,009 INFO L85 PathProgramCache]: Analyzing trace with hash 671236619, now seen corresponding path program 1 times [2025-03-04 03:01:23,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:01:23,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263308095] [2025-03-04 03:01:23,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:01:23,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:01:27,145 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-04 03:01:27,483 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-04 03:01:27,486 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:01:27,486 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:01:27,908 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2025-03-04 03:01:27,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:01:27,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263308095] [2025-03-04 03:01:27,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263308095] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:01:27,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581623311] [2025-03-04 03:01:27,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:01:27,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:01:27,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:01:27,915 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 03:01:27,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 03:01:31,940 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-04 03:01:32,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-04 03:01:32,430 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:01:32,430 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:01:32,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 4508 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 03:01:32,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 03:01:32,479 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2025-03-04 03:01:32,480 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 03:01:32,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581623311] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 03:01:32,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 03:01:32,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 03:01:32,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345964710] [2025-03-04 03:01:32,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 03:01:32,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 03:01:32,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 03:01:32,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 03:01:32,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 03:01:32,499 INFO L87 Difference]: Start difference. First operand has 184 states, 118 states have (on average 1.2033898305084745) internal successors, (142), 119 states have internal predecessors, (142), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-03-04 03:01:32,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 03:01:32,523 INFO L93 Difference]: Finished difference Result 345 states and 466 transitions. [2025-03-04 03:01:32,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 03:01:32,524 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 140 [2025-03-04 03:01:32,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 03:01:32,530 INFO L225 Difference]: With dead ends: 345 [2025-03-04 03:01:32,531 INFO L226 Difference]: Without dead ends: 179 [2025-03-04 03:01:32,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 03:01:32,537 INFO L435 NwaCegarLoop]: 234 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, 234 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 03:01:32,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 03:01:32,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2025-03-04 03:01:32,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2025-03-04 03:01:32,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 114 states have (on average 1.1929824561403508) internal successors, (136), 115 states have internal predecessors, (136), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2025-03-04 03:01:32,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 229 transitions. [2025-03-04 03:01:32,574 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 229 transitions. Word has length 140 [2025-03-04 03:01:32,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 03:01:32,575 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 229 transitions. [2025-03-04 03:01:32,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-03-04 03:01:32,576 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 229 transitions. [2025-03-04 03:01:32,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-03-04 03:01:32,579 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:01:32,579 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 2, 2, 2, 2, 2, 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] [2025-03-04 03:01:32,594 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 03:01:32,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-04 03:01:32,785 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:01:32,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:01:32,785 INFO L85 PathProgramCache]: Analyzing trace with hash -799582070, now seen corresponding path program 1 times [2025-03-04 03:01:32,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:01:32,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974322540] [2025-03-04 03:01:32,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:01:32,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:01:36,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-04 03:01:36,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-04 03:01:36,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:01:36,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:01:37,477 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2025-03-04 03:01:37,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:01:37,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974322540] [2025-03-04 03:01:37,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974322540] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 03:01:37,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 03:01:37,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 03:01:37,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676801744] [2025-03-04 03:01:37,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 03:01:37,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 03:01:37,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 03:01:37,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 03:01:37,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 03:01:37,479 INFO L87 Difference]: Start difference. First operand 179 states and 229 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-04 03:01:38,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 03:01:38,009 INFO L93 Difference]: Finished difference Result 304 states and 389 transitions. [2025-03-04 03:01:38,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 03:01:38,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 140 [2025-03-04 03:01:38,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 03:01:38,012 INFO L225 Difference]: With dead ends: 304 [2025-03-04 03:01:38,012 INFO L226 Difference]: Without dead ends: 179 [2025-03-04 03:01:38,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 03:01:38,013 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 12 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-04 03:01:38,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 811 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 03:01:38,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2025-03-04 03:01:38,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2025-03-04 03:01:38,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 114 states have (on average 1.1842105263157894) internal successors, (135), 115 states have internal predecessors, (135), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2025-03-04 03:01:38,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 228 transitions. [2025-03-04 03:01:38,023 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 228 transitions. Word has length 140 [2025-03-04 03:01:38,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 03:01:38,024 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 228 transitions. [2025-03-04 03:01:38,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-04 03:01:38,024 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 228 transitions. [2025-03-04 03:01:38,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-03-04 03:01:38,025 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:01:38,026 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 3, 3, 3, 2, 2, 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] [2025-03-04 03:01:38,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 03:01:38,026 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:01:38,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:01:38,026 INFO L85 PathProgramCache]: Analyzing trace with hash 151945090, now seen corresponding path program 1 times [2025-03-04 03:01:38,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:01:38,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814353381] [2025-03-04 03:01:38,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:01:38,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:01:41,317 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-03-04 03:01:41,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-03-04 03:01:41,412 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:01:41,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:01:42,657 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2025-03-04 03:01:42,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:01:42,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814353381] [2025-03-04 03:01:42,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814353381] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:01:42,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221309351] [2025-03-04 03:01:42,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:01:42,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:01:42,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:01:42,659 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 03:01:42,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 03:01:46,648 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-03-04 03:01:47,067 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-03-04 03:01:47,067 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:01:47,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:01:47,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 4558 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 03:01:47,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 03:01:48,716 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2025-03-04 03:01:48,717 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 03:01:48,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221309351] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 03:01:48,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 03:01:48,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-03-04 03:01:48,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430841649] [2025-03-04 03:01:48,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 03:01:48,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 03:01:48,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 03:01:48,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 03:01:48,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-04 03:01:48,720 INFO L87 Difference]: Start difference. First operand 179 states and 228 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2025-03-04 03:01:52,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 03:01:52,462 INFO L93 Difference]: Finished difference Result 323 states and 418 transitions. [2025-03-04 03:01:52,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 03:01:52,463 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 148 [2025-03-04 03:01:52,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 03:01:52,465 INFO L225 Difference]: With dead ends: 323 [2025-03-04 03:01:52,466 INFO L226 Difference]: Without dead ends: 181 [2025-03-04 03:01:52,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2025-03-04 03:01:52,467 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 261 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2025-03-04 03:01:52,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 1035 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2025-03-04 03:01:52,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2025-03-04 03:01:52,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2025-03-04 03:01:52,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 115 states have (on average 1.182608695652174) internal successors, (136), 117 states have internal predecessors, (136), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (49), 46 states have call predecessors, (49), 46 states have call successors, (49) [2025-03-04 03:01:52,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 232 transitions. [2025-03-04 03:01:52,481 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 232 transitions. Word has length 148 [2025-03-04 03:01:52,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 03:01:52,482 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 232 transitions. [2025-03-04 03:01:52,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2025-03-04 03:01:52,482 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 232 transitions. [2025-03-04 03:01:52,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2025-03-04 03:01:52,483 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:01:52,484 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2025-03-04 03:01:52,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 03:01:52,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-04 03:01:52,685 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:01:52,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:01:52,685 INFO L85 PathProgramCache]: Analyzing trace with hash 2056521705, now seen corresponding path program 1 times [2025-03-04 03:01:52,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:01:52,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067584921] [2025-03-04 03:01:52,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:01:52,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:01:55,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-03-04 03:01:56,116 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-03-04 03:01:56,117 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:01:56,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:01:57,228 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2025-03-04 03:01:57,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:01:57,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067584921] [2025-03-04 03:01:57,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067584921] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 03:01:57,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 03:01:57,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 03:01:57,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658485358] [2025-03-04 03:01:57,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 03:01:57,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 03:01:57,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 03:01:57,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 03:01:57,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 03:01:57,230 INFO L87 Difference]: Start difference. First operand 181 states and 232 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2025-03-04 03:01:58,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 03:01:58,272 INFO L93 Difference]: Finished difference Result 309 states and 396 transitions. [2025-03-04 03:01:58,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 03:01:58,272 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 163 [2025-03-04 03:01:58,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 03:01:58,274 INFO L225 Difference]: With dead ends: 309 [2025-03-04 03:01:58,274 INFO L226 Difference]: Without dead ends: 181 [2025-03-04 03:01:58,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 03:01:58,275 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 29 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-04 03:01:58,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 970 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-04 03:01:58,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2025-03-04 03:01:58,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2025-03-04 03:01:58,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 115 states have (on average 1.173913043478261) internal successors, (135), 117 states have internal predecessors, (135), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (49), 46 states have call predecessors, (49), 46 states have call successors, (49) [2025-03-04 03:01:58,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 231 transitions. [2025-03-04 03:01:58,285 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 231 transitions. Word has length 163 [2025-03-04 03:01:58,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 03:01:58,286 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 231 transitions. [2025-03-04 03:01:58,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2025-03-04 03:01:58,286 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 231 transitions. [2025-03-04 03:01:58,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2025-03-04 03:01:58,287 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:01:58,287 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 03:01:58,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 03:01:58,287 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:01:58,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:01:58,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1184350268, now seen corresponding path program 1 times [2025-03-04 03:01:58,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:01:58,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721430703] [2025-03-04 03:01:58,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:01:58,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:02:01,632 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-03-04 03:02:01,745 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-03-04 03:02:01,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:02:01,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:02:03,316 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2025-03-04 03:02:03,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:02:03,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721430703] [2025-03-04 03:02:03,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721430703] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:02:03,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243775793] [2025-03-04 03:02:03,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:02:03,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:02:03,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:02:03,319 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 03:02:03,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 03:02:07,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-03-04 03:02:07,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-03-04 03:02:07,698 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:02:07,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:02:07,720 INFO L256 TraceCheckSpWp]: Trace formula consists of 4752 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 03:02:07,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 03:02:09,904 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-03-04 03:02:09,905 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 03:02:09,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243775793] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 03:02:09,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 03:02:09,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2025-03-04 03:02:09,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565166610] [2025-03-04 03:02:09,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 03:02:09,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 03:02:09,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 03:02:09,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 03:02:09,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2025-03-04 03:02:09,906 INFO L87 Difference]: Start difference. First operand 181 states and 231 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2025-03-04 03:02:14,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 03:02:14,852 INFO L93 Difference]: Finished difference Result 322 states and 413 transitions. [2025-03-04 03:02:14,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 03:02:14,852 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 179 [2025-03-04 03:02:14,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 03:02:14,854 INFO L225 Difference]: With dead ends: 322 [2025-03-04 03:02:14,854 INFO L226 Difference]: Without dead ends: 181 [2025-03-04 03:02:14,855 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2025-03-04 03:02:14,856 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 278 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2025-03-04 03:02:14,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 1135 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2025-03-04 03:02:14,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2025-03-04 03:02:14,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2025-03-04 03:02:14,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 115 states have (on average 1.173913043478261) internal successors, (135), 117 states have internal predecessors, (135), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) [2025-03-04 03:02:14,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 230 transitions. [2025-03-04 03:02:14,873 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 230 transitions. Word has length 179 [2025-03-04 03:02:14,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 03:02:14,873 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 230 transitions. [2025-03-04 03:02:14,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2025-03-04 03:02:14,873 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 230 transitions. [2025-03-04 03:02:14,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2025-03-04 03:02:14,875 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:02:14,875 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2025-03-04 03:02:14,893 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 03:02:15,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:02:15,076 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:02:15,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:02:15,077 INFO L85 PathProgramCache]: Analyzing trace with hash -138128071, now seen corresponding path program 2 times [2025-03-04 03:02:15,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:02:15,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923716362] [2025-03-04 03:02:15,077 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 03:02:15,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:02:18,348 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 194 statements into 2 equivalence classes. [2025-03-04 03:02:18,436 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 28 of 194 statements. [2025-03-04 03:02:18,436 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 03:02:18,436 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:02:20,174 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2025-03-04 03:02:20,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:02:20,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923716362] [2025-03-04 03:02:20,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923716362] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 03:02:20,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 03:02:20,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 03:02:20,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695440814] [2025-03-04 03:02:20,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 03:02:20,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 03:02:20,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 03:02:20,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 03:02:20,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 03:02:20,176 INFO L87 Difference]: Start difference. First operand 181 states and 230 transitions. Second operand has 6 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2025-03-04 03:02:20,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 03:02:20,549 INFO L93 Difference]: Finished difference Result 189 states and 238 transitions. [2025-03-04 03:02:20,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 03:02:20,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 194 [2025-03-04 03:02:20,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 03:02:20,551 INFO L225 Difference]: With dead ends: 189 [2025-03-04 03:02:20,551 INFO L226 Difference]: Without dead ends: 187 [2025-03-04 03:02:20,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-04 03:02:20,551 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 3 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 03:02:20,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1107 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 03:02:20,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2025-03-04 03:02:20,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 186. [2025-03-04 03:02:20,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 118 states have (on average 1.1694915254237288) internal successors, (138), 120 states have internal predecessors, (138), 48 states have call successors, (48), 18 states have call predecessors, (48), 19 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2025-03-04 03:02:20,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 235 transitions. [2025-03-04 03:02:20,564 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 235 transitions. Word has length 194 [2025-03-04 03:02:20,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 03:02:20,564 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 235 transitions. [2025-03-04 03:02:20,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2025-03-04 03:02:20,565 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 235 transitions. [2025-03-04 03:02:20,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2025-03-04 03:02:20,566 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:02:20,566 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1] [2025-03-04 03:02:20,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 03:02:20,566 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:02:20,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:02:20,567 INFO L85 PathProgramCache]: Analyzing trace with hash -792125088, now seen corresponding path program 3 times [2025-03-04 03:02:20,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:02:20,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146163264] [2025-03-04 03:02:20,567 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 03:02:20,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:02:23,879 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 209 statements into 7 equivalence classes. [2025-03-04 03:02:25,460 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 64 of 209 statements. [2025-03-04 03:02:25,461 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-04 03:02:25,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:02:27,167 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2025-03-04 03:02:27,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:02:27,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146163264] [2025-03-04 03:02:27,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146163264] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:02:27,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024835678] [2025-03-04 03:02:27,167 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 03:02:27,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:02:27,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:02:27,169 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 03:02:27,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 03:02:31,660 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 209 statements into 7 equivalence classes.