./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d03ab2f374c74d452a3d10e43faf5dd107aad5d480e09c302467ee543678a603 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:24:54,559 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:24:54,624 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:24:54,633 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:24:54,637 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:24:54,666 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:24:54,668 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:24:54,668 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:24:54,668 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:24:54,668 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:24:54,669 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:24:54,669 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:24:54,670 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:24:54,670 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:24:54,670 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:24:54,670 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:24:54,671 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:24:54,671 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:24:54,671 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:24:54,671 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:24:54,671 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:24:54,671 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:24:54,671 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:24:54,672 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:24:54,672 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:24:54,672 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:24:54,672 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:24:54,672 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:24:54,672 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:24:54,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:24:54,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:24:54,672 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:24:54,673 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:24:54,673 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:24:54,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:24:54,673 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:24:54,673 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:24:54,674 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:24:54,674 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:24:54,674 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:24:54,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:24:54,674 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:24:54,674 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:24:54,674 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:24:54,674 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:24:54,674 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d03ab2f374c74d452a3d10e43faf5dd107aad5d480e09c302467ee543678a603 [2025-01-09 17:24:54,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:24:54,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:24:54,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:24:54,954 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:24:54,956 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:24:54,958 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i [2025-01-09 17:24:56,192 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d250f6a1a/6e06e0f5dd8c490bb965cbd19013edd7/FLAG3b74f2233 [2025-01-09 17:24:56,664 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:24:56,664 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i [2025-01-09 17:24:56,702 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d250f6a1a/6e06e0f5dd8c490bb965cbd19013edd7/FLAG3b74f2233 [2025-01-09 17:24:56,716 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d250f6a1a/6e06e0f5dd8c490bb965cbd19013edd7 [2025-01-09 17:24:56,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:24:56,719 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:24:56,720 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:24:56,720 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:24:56,724 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:24:56,724 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:24:56" (1/1) ... [2025-01-09 17:24:56,725 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@537ff494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:24:56, skipping insertion in model container [2025-01-09 17:24:56,725 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:24:56" (1/1) ... [2025-01-09 17:24:56,789 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:24:57,005 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i[4501,4514] [2025-01-09 17:24:57,012 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i[4561,4574] [2025-01-09 17:24:57,681 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:24:57,685 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:24:57,685 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:24:57,686 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:24:57,687 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:24:57,697 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:24:57,697 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:24:57,699 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:24:57,699 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:24:58,057 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:24:58,058 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:24:58,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:24:58,167 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:24:58,178 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i[4501,4514] [2025-01-09 17:24:58,178 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i[4561,4574] [2025-01-09 17:24:58,230 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:24:58,231 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:24:58,231 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:24:58,231 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:24:58,232 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:24:58,237 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:24:58,238 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:24:58,238 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:24:58,239 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:24:58,306 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:24:58,306 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:24:58,316 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7703-7714] [2025-01-09 17:24:58,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:24:58,515 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:24:58,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:24:58 WrapperNode [2025-01-09 17:24:58,516 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:24:58,517 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:24:58,517 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:24:58,517 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:24:58,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:24:58" (1/1) ... [2025-01-09 17:24:58,588 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:24:58" (1/1) ... [2025-01-09 17:24:58,650 INFO L138 Inliner]: procedures = 678, calls = 1509, calls flagged for inlining = 54, calls inlined = 9, statements flattened = 621 [2025-01-09 17:24:58,650 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:24:58,651 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:24:58,651 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:24:58,651 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:24:58,661 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:24:58" (1/1) ... [2025-01-09 17:24:58,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:24:58" (1/1) ... [2025-01-09 17:24:58,668 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:24:58" (1/1) ... [2025-01-09 17:24:58,743 INFO L175 MemorySlicer]: Split 296 memory accesses to 5 slices as follows [2, 238, 3, 47, 6]. 80 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 6, 1, 0, 5]. The 251 writes are split as follows [0, 232, 1, 18, 0]. [2025-01-09 17:24:58,743 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:24:58" (1/1) ... [2025-01-09 17:24:58,746 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:24:58" (1/1) ... [2025-01-09 17:24:58,775 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:24:58" (1/1) ... [2025-01-09 17:24:58,779 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:24:58" (1/1) ... [2025-01-09 17:24:58,782 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:24:58" (1/1) ... [2025-01-09 17:24:58,791 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:24:58" (1/1) ... [2025-01-09 17:24:58,797 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:24:58" (1/1) ... [2025-01-09 17:24:58,813 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:24:58,817 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:24:58,817 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:24:58,817 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:24:58,818 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:24:58" (1/1) ... [2025-01-09 17:24:58,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:24:58,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:24:58,850 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 17:24:58,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 17:24:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-01-09 17:24:58,881 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-01-09 17:24:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:24:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-01-09 17:24:58,882 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-01-09 17:24:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-01-09 17:24:58,882 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-01-09 17:24:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 17:24:58,882 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 17:24:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:24:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:24:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:24:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:24:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:24:58,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:24:58,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:24:58,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:24:58,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:24:58,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:24:58,885 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 17:24:58,885 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 17:24:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:24:58,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:24:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:24:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:24:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:24:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:24:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:24:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:24:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:24:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:24:58,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:24:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_clean_up [2025-01-09 17:24:58,886 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_clean_up [2025-01-09 17:24:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:24:58,886 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:24:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-01-09 17:24:58,886 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-01-09 17:24:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 17:24:58,886 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 17:24:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-01-09 17:24:58,887 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-01-09 17:24:58,887 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:24:58,887 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 17:24:58,887 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 17:24:58,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:24:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2025-01-09 17:24:58,888 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2025-01-09 17:24:58,888 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-01-09 17:24:58,888 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-01-09 17:24:58,888 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-01-09 17:24:58,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-01-09 17:24:58,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:24:58,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:24:58,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:24:58,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:24:58,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:24:59,216 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:24:59,218 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:25:05,556 INFO L? ?]: Removed 131 outVars from TransFormulas that were not future-live. [2025-01-09 17:25:05,557 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:25:05,574 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:25:05,577 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 17:25:05,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:25:05 BoogieIcfgContainer [2025-01-09 17:25:05,577 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:25:05,579 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:25:05,580 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:25:05,584 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:25:05,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:24:56" (1/3) ... [2025-01-09 17:25:05,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8adde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:25:05, skipping insertion in model container [2025-01-09 17:25:05,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:24:58" (2/3) ... [2025-01-09 17:25:05,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8adde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:25:05, skipping insertion in model container [2025-01-09 17:25:05,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:25:05" (3/3) ... [2025-01-09 17:25:05,586 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_clean_up_harness.i [2025-01-09 17:25:05,601 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:25:05,603 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_clean_up_harness.i that has 19 procedures, 177 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-01-09 17:25:05,661 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:25:05,672 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;@2d53aa1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:25:05,673 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:25:05,679 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 117 states have (on average 1.2393162393162394) internal successors, (145), 118 states have internal predecessors, (145), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2025-01-09 17:25:05,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-01-09 17:25:05,694 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:25:05,695 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 3, 3, 3, 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] [2025-01-09 17:25:05,696 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:25:05,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:25:05,701 INFO L85 PathProgramCache]: Analyzing trace with hash 655708472, now seen corresponding path program 1 times [2025-01-09 17:25:05,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:25:05,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732579181] [2025-01-09 17:25:05,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:25:05,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:25:10,534 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-01-09 17:25:11,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-01-09 17:25:11,058 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:25:11,058 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:25:11,650 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2025-01-09 17:25:11,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:25:11,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732579181] [2025-01-09 17:25:11,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732579181] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:25:11,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919223057] [2025-01-09 17:25:11,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:25:11,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:25:11,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:25:11,660 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:25:11,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 17:25:16,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-01-09 17:25:17,111 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-01-09 17:25:17,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:25:17,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:25:17,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 4392 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 17:25:17,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:25:17,176 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2025-01-09 17:25:17,176 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:25:17,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919223057] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:25:17,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:25:17,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 17:25:17,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058174126] [2025-01-09 17:25:17,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:25:17,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 17:25:17,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:25:17,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 17:25:17,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:25:17,217 INFO L87 Difference]: Start difference. First operand has 177 states, 117 states have (on average 1.2393162393162394) internal successors, (145), 118 states have internal predecessors, (145), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-01-09 17:25:17,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:25:17,271 INFO L93 Difference]: Finished difference Result 328 states and 439 transitions. [2025-01-09 17:25:17,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 17:25:17,274 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 132 [2025-01-09 17:25:17,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:25:17,285 INFO L225 Difference]: With dead ends: 328 [2025-01-09 17:25:17,285 INFO L226 Difference]: Without dead ends: 172 [2025-01-09 17:25:17,290 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:25:17,295 INFO L435 NwaCegarLoop]: 223 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, 223 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 17:25:17,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:25:17,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2025-01-09 17:25:17,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2025-01-09 17:25:17,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 112 states have (on average 1.2232142857142858) internal successors, (137), 114 states have internal predecessors, (137), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2025-01-09 17:25:17,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 218 transitions. [2025-01-09 17:25:17,351 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 218 transitions. Word has length 132 [2025-01-09 17:25:17,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:25:17,353 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 218 transitions. [2025-01-09 17:25:17,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-01-09 17:25:17,353 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 218 transitions. [2025-01-09 17:25:17,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-01-09 17:25:17,359 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:25:17,359 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 3, 3, 3, 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] [2025-01-09 17:25:17,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 17:25:17,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-09 17:25:17,560 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:25:17,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:25:17,561 INFO L85 PathProgramCache]: Analyzing trace with hash 932743914, now seen corresponding path program 1 times [2025-01-09 17:25:17,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:25:17,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783211581] [2025-01-09 17:25:17,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:25:17,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:25:21,308 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-01-09 17:25:21,463 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-01-09 17:25:21,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:25:21,464 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:25:22,812 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2025-01-09 17:25:22,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:25:22,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783211581] [2025-01-09 17:25:22,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783211581] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:25:22,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:25:22,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 17:25:22,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522877340] [2025-01-09 17:25:22,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:25:22,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 17:25:22,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:25:22,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 17:25:22,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:25:22,816 INFO L87 Difference]: Start difference. First operand 172 states and 218 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2025-01-09 17:25:23,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:25:23,272 INFO L93 Difference]: Finished difference Result 265 states and 333 transitions. [2025-01-09 17:25:23,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 17:25:23,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 149 [2025-01-09 17:25:23,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:25:23,280 INFO L225 Difference]: With dead ends: 265 [2025-01-09 17:25:23,280 INFO L226 Difference]: Without dead ends: 172 [2025-01-09 17:25:23,284 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 [2025-01-09 17:25:23,284 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 6 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 17:25:23,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 793 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 17:25:23,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2025-01-09 17:25:23,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2025-01-09 17:25:23,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 114 states have internal predecessors, (136), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2025-01-09 17:25:23,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 217 transitions. [2025-01-09 17:25:23,300 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 217 transitions. Word has length 149 [2025-01-09 17:25:23,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:25:23,303 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 217 transitions. [2025-01-09 17:25:23,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2025-01-09 17:25:23,304 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 217 transitions. [2025-01-09 17:25:23,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2025-01-09 17:25:23,306 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:25:23,306 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 3, 3, 3, 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] [2025-01-09 17:25:23,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 17:25:23,306 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:25:23,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:25:23,307 INFO L85 PathProgramCache]: Analyzing trace with hash -526587858, now seen corresponding path program 1 times [2025-01-09 17:25:23,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:25:23,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088453851] [2025-01-09 17:25:23,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:25:23,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:25:27,240 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 157 statements into 1 equivalence classes. [2025-01-09 17:25:27,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 157 of 157 statements. [2025-01-09 17:25:27,364 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:25:27,364 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:25:29,099 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2025-01-09 17:25:29,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:25:29,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088453851] [2025-01-09 17:25:29,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088453851] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:25:29,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:25:29,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 17:25:29,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266157749] [2025-01-09 17:25:29,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:25:29,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 17:25:29,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:25:29,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 17:25:29,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 17:25:29,103 INFO L87 Difference]: Start difference. First operand 172 states and 217 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2025-01-09 17:25:30,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:25:30,535 INFO L93 Difference]: Finished difference Result 284 states and 362 transitions. [2025-01-09 17:25:30,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 17:25:30,536 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 157 [2025-01-09 17:25:30,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:25:30,542 INFO L225 Difference]: With dead ends: 284 [2025-01-09 17:25:30,543 INFO L226 Difference]: Without dead ends: 174 [2025-01-09 17:25:30,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 17:25:30,547 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 33 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-01-09 17:25:30,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 1219 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-01-09 17:25:30,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2025-01-09 17:25:30,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2025-01-09 17:25:30,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 113 states have (on average 1.2123893805309736) internal successors, (137), 116 states have internal predecessors, (137), 41 states have call successors, (41), 18 states have call predecessors, (41), 19 states have return successors, (42), 40 states have call predecessors, (42), 40 states have call successors, (42) [2025-01-09 17:25:30,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 220 transitions. [2025-01-09 17:25:30,570 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 220 transitions. Word has length 157 [2025-01-09 17:25:30,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:25:30,570 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 220 transitions. [2025-01-09 17:25:30,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2025-01-09 17:25:30,571 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 220 transitions. [2025-01-09 17:25:30,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2025-01-09 17:25:30,576 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:25:30,576 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 3, 3, 3, 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, 1, 1, 1, 1] [2025-01-09 17:25:30,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 17:25:30,576 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:25:30,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:25:30,577 INFO L85 PathProgramCache]: Analyzing trace with hash -78523022, now seen corresponding path program 1 times [2025-01-09 17:25:30,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:25:30,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423699616] [2025-01-09 17:25:30,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:25:30,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:25:34,225 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 172 statements into 1 equivalence classes. [2025-01-09 17:25:34,383 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 172 of 172 statements. [2025-01-09 17:25:34,383 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:25:34,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:25:36,026 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2025-01-09 17:25:36,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:25:36,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423699616] [2025-01-09 17:25:36,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423699616] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:25:36,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:25:36,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 17:25:36,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347802051] [2025-01-09 17:25:36,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:25:36,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 17:25:36,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:25:36,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 17:25:36,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 17:25:36,028 INFO L87 Difference]: Start difference. First operand 174 states and 220 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2025-01-09 17:25:37,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:25:37,384 INFO L93 Difference]: Finished difference Result 270 states and 338 transitions. [2025-01-09 17:25:37,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 17:25:37,385 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 172 [2025-01-09 17:25:37,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:25:37,389 INFO L225 Difference]: With dead ends: 270 [2025-01-09 17:25:37,392 INFO L226 Difference]: Without dead ends: 174 [2025-01-09 17:25:37,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 17:25:37,393 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 23 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-01-09 17:25:37,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 946 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-01-09 17:25:37,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2025-01-09 17:25:37,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2025-01-09 17:25:37,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 113 states have (on average 1.2035398230088497) internal successors, (136), 116 states have internal predecessors, (136), 41 states have call successors, (41), 18 states have call predecessors, (41), 19 states have return successors, (42), 40 states have call predecessors, (42), 40 states have call successors, (42) [2025-01-09 17:25:37,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 219 transitions. [2025-01-09 17:25:37,418 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 219 transitions. Word has length 172 [2025-01-09 17:25:37,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:25:37,418 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 219 transitions. [2025-01-09 17:25:37,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2025-01-09 17:25:37,419 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 219 transitions. [2025-01-09 17:25:37,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-01-09 17:25:37,422 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:25:37,422 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:25:37,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 17:25:37,422 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:25:37,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:25:37,423 INFO L85 PathProgramCache]: Analyzing trace with hash -103855749, now seen corresponding path program 1 times [2025-01-09 17:25:37,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:25:37,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761068977] [2025-01-09 17:25:37,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:25:37,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:25:41,192 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-01-09 17:25:41,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-01-09 17:25:41,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:25:41,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:25:43,366 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2025-01-09 17:25:43,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:25:43,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761068977] [2025-01-09 17:25:43,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761068977] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:25:43,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:25:43,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 17:25:43,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624320635] [2025-01-09 17:25:43,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:25:43,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 17:25:43,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:25:43,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 17:25:43,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 17:25:43,368 INFO L87 Difference]: Start difference. First operand 174 states and 219 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2025-01-09 17:25:45,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:25:45,109 INFO L93 Difference]: Finished difference Result 283 states and 356 transitions. [2025-01-09 17:25:45,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 17:25:45,110 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 188 [2025-01-09 17:25:45,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:25:45,112 INFO L225 Difference]: With dead ends: 283 [2025-01-09 17:25:45,112 INFO L226 Difference]: Without dead ends: 174 [2025-01-09 17:25:45,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-01-09 17:25:45,113 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 55 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-01-09 17:25:45,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 1268 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-01-09 17:25:45,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2025-01-09 17:25:45,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2025-01-09 17:25:45,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 113 states have (on average 1.2035398230088497) internal successors, (136), 116 states have internal predecessors, (136), 41 states have call successors, (41), 18 states have call predecessors, (41), 19 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) [2025-01-09 17:25:45,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 218 transitions. [2025-01-09 17:25:45,125 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 218 transitions. Word has length 188 [2025-01-09 17:25:45,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:25:45,125 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 218 transitions. [2025-01-09 17:25:45,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2025-01-09 17:25:45,126 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 218 transitions. [2025-01-09 17:25:45,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2025-01-09 17:25:45,128 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:25:45,128 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:25:45,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 17:25:45,128 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:25:45,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:25:45,129 INFO L85 PathProgramCache]: Analyzing trace with hash -453892903, now seen corresponding path program 1 times [2025-01-09 17:25:45,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:25:45,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020209004] [2025-01-09 17:25:45,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:25:45,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:25:48,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-01-09 17:25:48,714 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-01-09 17:25:48,715 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:25:48,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:25:49,648 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2025-01-09 17:25:49,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:25:49,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020209004] [2025-01-09 17:25:49,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020209004] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:25:49,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564588636] [2025-01-09 17:25:49,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:25:49,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:25:49,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:25:49,654 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:25:49,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 17:25:53,929 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-01-09 17:25:54,461 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-01-09 17:25:54,461 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:25:54,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:25:54,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 4829 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 17:25:54,496 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:25:54,552 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-01-09 17:25:54,552 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:25:54,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564588636] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:25:54,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:25:54,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2025-01-09 17:25:54,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763880085] [2025-01-09 17:25:54,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:25:54,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 17:25:54,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:25:54,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 17:25:54,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 17:25:54,554 INFO L87 Difference]: Start difference. First operand 174 states and 218 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2025-01-09 17:25:54,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:25:54,693 INFO L93 Difference]: Finished difference Result 288 states and 367 transitions. [2025-01-09 17:25:54,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 17:25:54,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 203 [2025-01-09 17:25:54,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:25:54,695 INFO L225 Difference]: With dead ends: 288 [2025-01-09 17:25:54,697 INFO L226 Difference]: Without dead ends: 176 [2025-01-09 17:25:54,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 17:25:54,698 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 0 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 17:25:54,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 635 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 17:25:54,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2025-01-09 17:25:54,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2025-01-09 17:25:54,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 115 states have (on average 1.2) internal successors, (138), 118 states have internal predecessors, (138), 41 states have call successors, (41), 18 states have call predecessors, (41), 19 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) [2025-01-09 17:25:54,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 220 transitions. [2025-01-09 17:25:54,716 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 220 transitions. Word has length 203 [2025-01-09 17:25:54,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:25:54,716 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 220 transitions. [2025-01-09 17:25:54,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2025-01-09 17:25:54,716 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 220 transitions. [2025-01-09 17:25:54,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2025-01-09 17:25:54,720 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:25:54,720 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:25:54,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 17:25:54,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:25:54,922 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:25:54,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:25:54,923 INFO L85 PathProgramCache]: Analyzing trace with hash 613009749, now seen corresponding path program 1 times [2025-01-09 17:25:54,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:25:54,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442275070] [2025-01-09 17:25:54,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:25:54,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:25:58,576 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-01-09 17:25:58,728 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-01-09 17:25:58,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:25:58,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:25:59,586 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2025-01-09 17:25:59,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:25:59,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442275070] [2025-01-09 17:25:59,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442275070] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:25:59,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:25:59,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 17:25:59,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111930480] [2025-01-09 17:25:59,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:25:59,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 17:25:59,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:25:59,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 17:25:59,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 17:25:59,588 INFO L87 Difference]: Start difference. First operand 176 states and 220 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2025-01-09 17:25:59,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:25:59,754 INFO L93 Difference]: Finished difference Result 282 states and 351 transitions. [2025-01-09 17:25:59,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 17:25:59,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 203 [2025-01-09 17:25:59,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:25:59,757 INFO L225 Difference]: With dead ends: 282 [2025-01-09 17:25:59,757 INFO L226 Difference]: Without dead ends: 179 [2025-01-09 17:25:59,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 17:25:59,758 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 1 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 17:25:59,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 631 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 17:25:59,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2025-01-09 17:25:59,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 178. [2025-01-09 17:25:59,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 117 states have (on average 1.1965811965811965) internal successors, (140), 120 states have internal predecessors, (140), 41 states have call successors, (41), 18 states have call predecessors, (41), 19 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) [2025-01-09 17:25:59,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 222 transitions. [2025-01-09 17:25:59,775 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 222 transitions. Word has length 203 [2025-01-09 17:25:59,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:25:59,776 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 222 transitions. [2025-01-09 17:25:59,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2025-01-09 17:25:59,777 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 222 transitions. [2025-01-09 17:25:59,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2025-01-09 17:25:59,779 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:25:59,779 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:25:59,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 17:25:59,780 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:25:59,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:25:59,780 INFO L85 PathProgramCache]: Analyzing trace with hash -118957677, now seen corresponding path program 1 times [2025-01-09 17:25:59,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:25:59,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883195017] [2025-01-09 17:25:59,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:25:59,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:26:03,237 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-01-09 17:26:03,445 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-01-09 17:26:03,446 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:26:03,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:26:05,328 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2025-01-09 17:26:05,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:26:05,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883195017] [2025-01-09 17:26:05,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883195017] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:26:05,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:26:05,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 17:26:05,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279045818] [2025-01-09 17:26:05,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:26:05,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 17:26:05,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:26:05,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 17:26:05,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 17:26:05,331 INFO L87 Difference]: Start difference. First operand 178 states and 222 transitions. Second operand has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2025-01-09 17:26:05,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:26:05,959 INFO L93 Difference]: Finished difference Result 276 states and 342 transitions. [2025-01-09 17:26:05,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 17:26:05,960 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 203 [2025-01-09 17:26:05,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:26:05,963 INFO L225 Difference]: With dead ends: 276 [2025-01-09 17:26:05,963 INFO L226 Difference]: Without dead ends: 178 [2025-01-09 17:26:05,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 17:26:05,964 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 6 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 17:26:05,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1038 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 17:26:05,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2025-01-09 17:26:05,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2025-01-09 17:26:05,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 117 states have (on average 1.188034188034188) internal successors, (139), 120 states have internal predecessors, (139), 41 states have call successors, (41), 18 states have call predecessors, (41), 19 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) [2025-01-09 17:26:05,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 221 transitions. [2025-01-09 17:26:05,982 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 221 transitions. Word has length 203 [2025-01-09 17:26:05,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:26:05,982 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 221 transitions. [2025-01-09 17:26:05,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2025-01-09 17:26:05,983 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 221 transitions. [2025-01-09 17:26:05,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2025-01-09 17:26:05,985 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:26:05,985 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:26:05,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 17:26:05,985 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:26:05,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:26:05,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1040964952, now seen corresponding path program 1 times [2025-01-09 17:26:05,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:26:05,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106527682] [2025-01-09 17:26:05,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:26:05,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:26:09,623 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 204 statements into 1 equivalence classes. [2025-01-09 17:26:10,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 204 of 204 statements. [2025-01-09 17:26:10,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:26:10,145 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:26:12,735 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2025-01-09 17:26:12,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:26:12,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106527682] [2025-01-09 17:26:12,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106527682] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:26:12,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:26:12,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 17:26:12,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323800002] [2025-01-09 17:26:12,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:26:12,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 17:26:12,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:26:12,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 17:26:12,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 17:26:12,738 INFO L87 Difference]: Start difference. First operand 178 states and 221 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2025-01-09 17:26:13,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:26:13,083 INFO L93 Difference]: Finished difference Result 188 states and 235 transitions. [2025-01-09 17:26:13,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 17:26:13,084 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 204 [2025-01-09 17:26:13,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:26:13,086 INFO L225 Difference]: With dead ends: 188 [2025-01-09 17:26:13,086 INFO L226 Difference]: Without dead ends: 186 [2025-01-09 17:26:13,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 17:26:13,087 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 3 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 17:26:13,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1055 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 17:26:13,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2025-01-09 17:26:13,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 185. [2025-01-09 17:26:13,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 121 states have (on average 1.1818181818181819) internal successors, (143), 125 states have internal predecessors, (143), 42 states have call successors, (42), 19 states have call predecessors, (42), 21 states have return successors, (47), 41 states have call predecessors, (47), 41 states have call successors, (47) [2025-01-09 17:26:13,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 232 transitions. [2025-01-09 17:26:13,098 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 232 transitions. Word has length 204 [2025-01-09 17:26:13,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:26:13,099 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 232 transitions. [2025-01-09 17:26:13,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2025-01-09 17:26:13,099 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 232 transitions. [2025-01-09 17:26:13,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2025-01-09 17:26:13,101 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:26:13,102 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:26:13,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 17:26:13,102 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:26:13,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:26:13,103 INFO L85 PathProgramCache]: Analyzing trace with hash 4433641, now seen corresponding path program 1 times [2025-01-09 17:26:13,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:26:13,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421616232] [2025-01-09 17:26:13,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:26:13,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms