./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 14628bdc2b5dee98fd531ba30b57569c060efa6ead93e7c2de47c8a88cf53b5a --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 17:47:21,199 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 17:47:21,254 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 17:47:21,260 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 17:47:21,260 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 17:47:21,282 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 17:47:21,283 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 17:47:21,283 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 17:47:21,283 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 17:47:21,283 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 17:47:21,283 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 17:47:21,284 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 17:47:21,284 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 17:47:21,284 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 17:47:21,285 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 17:47:21,285 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 17:47:21,285 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 17:47:21,285 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 17:47:21,286 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 17:47:21,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 17:47:21,286 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 17:47:21,286 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 17:47:21,286 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 17:47:21,286 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 17:47:21,286 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 17:47:21,286 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 17:47:21,286 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 17:47:21,286 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 17:47:21,287 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 17:47:21,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:47:21,287 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 17:47:21,287 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 17:47:21,287 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 17:47:21,287 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 17:47:21,287 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 17:47:21,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 17:47:21,287 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 17:47:21,288 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 17:47:21,288 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 17:47:21,288 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 17:47:21,288 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14628bdc2b5dee98fd531ba30b57569c060efa6ead93e7c2de47c8a88cf53b5a [2025-03-08 17:47:21,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 17:47:21,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 17:47:21,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 17:47:21,526 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 17:47:21,527 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 17:47:21,529 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2025-03-08 17:47:22,773 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3dff2b2e/1a24d76f1c4945e6b7add4fc3cb27b5b/FLAGe4890d821 [2025-03-08 17:47:23,240 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 17:47:23,242 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2025-03-08 17:47:23,280 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3dff2b2e/1a24d76f1c4945e6b7add4fc3cb27b5b/FLAGe4890d821 [2025-03-08 17:47:23,341 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3dff2b2e/1a24d76f1c4945e6b7add4fc3cb27b5b [2025-03-08 17:47:23,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 17:47:23,345 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 17:47:23,347 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 17:47:23,347 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 17:47:23,350 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 17:47:23,351 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:47:23" (1/1) ... [2025-03-08 17:47:23,352 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79baf231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:23, skipping insertion in model container [2025-03-08 17:47:23,352 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:47:23" (1/1) ... [2025-03-08 17:47:23,425 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 17:47:23,652 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2025-03-08 17:47:23,657 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2025-03-08 17:47:24,140 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,142 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,142 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,143 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,143 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,156 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,157 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,160 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,160 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,161 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,161 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,162 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,162 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,467 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,474 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,514 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,514 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,515 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:47:24,539 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 17:47:24,548 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2025-03-08 17:47:24,551 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2025-03-08 17:47:24,592 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,592 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,593 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,593 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,594 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,598 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,600 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,602 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,602 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,603 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,604 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,604 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,604 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,699 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,707 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7770-7781] [2025-03-08 17:47:24,732 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,734 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,734 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:24,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:47:24,873 INFO L204 MainTranslator]: Completed translation [2025-03-08 17:47:24,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:24 WrapperNode [2025-03-08 17:47:24,874 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 17:47:24,875 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 17:47:24,875 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 17:47:24,875 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 17:47:24,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:24" (1/1) ... [2025-03-08 17:47:24,940 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:24" (1/1) ... [2025-03-08 17:47:24,994 INFO L138 Inliner]: procedures = 680, calls = 1678, calls flagged for inlining = 50, calls inlined = 10, statements flattened = 850 [2025-03-08 17:47:24,994 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 17:47:24,995 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 17:47:24,998 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 17:47:24,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 17:47:25,005 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:24" (1/1) ... [2025-03-08 17:47:25,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:24" (1/1) ... [2025-03-08 17:47:25,011 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:24" (1/1) ... [2025-03-08 17:47:25,070 INFO L175 MemorySlicer]: Split 332 memory accesses to 6 slices as follows [238, 2, 8, 72, 6, 6]. 72 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 5, 10, 1, 0]. The 241 writes are split as follows [232, 0, 0, 6, 1, 2]. [2025-03-08 17:47:25,074 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:24" (1/1) ... [2025-03-08 17:47:25,074 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:24" (1/1) ... [2025-03-08 17:47:25,108 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:24" (1/1) ... [2025-03-08 17:47:25,109 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:24" (1/1) ... [2025-03-08 17:47:25,114 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:24" (1/1) ... [2025-03-08 17:47:25,118 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:24" (1/1) ... [2025-03-08 17:47:25,129 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 17:47:25,130 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 17:47:25,130 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 17:47:25,130 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 17:47:25,131 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:24" (1/1) ... [2025-03-08 17:47:25,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:47:25,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:47:25,157 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 17:47:25,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 17:47:25,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 17:47:25,175 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-08 17:47:25,175 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-08 17:47:25,175 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-08 17:47:25,175 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 17:47:25,176 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2025-03-08 17:47:25,176 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-08 17:47:25,176 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 17:47:25,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 17:47:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 17:47:25,177 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-03-08 17:47:25,177 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-03-08 17:47:25,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 17:47:25,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 17:47:25,177 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 17:47:25,177 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 17:47:25,177 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-08 17:47:25,177 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-08 17:47:25,177 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-08 17:47:25,177 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-08 17:47:25,177 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-08 17:47:25,177 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-08 17:47:25,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 17:47:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 17:47:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 17:47:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 17:47:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 17:47:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 17:47:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-03-08 17:47:25,179 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-03-08 17:47:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-03-08 17:47:25,179 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-03-08 17:47:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-03-08 17:47:25,179 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-03-08 17:47:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 17:47:25,179 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 17:47:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-03-08 17:47:25,179 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-03-08 17:47:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2025-03-08 17:47:25,179 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2025-03-08 17:47:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 17:47:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-03-08 17:47:25,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-03-08 17:47:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 17:47:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 17:47:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 17:47:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 17:47:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 17:47:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 17:47:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 17:47:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 17:47:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 17:47:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 17:47:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 17:47:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 17:47:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 17:47:25,180 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 17:47:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-08 17:47:25,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-08 17:47:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-03-08 17:47:25,180 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-03-08 17:47:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 17:47:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 17:47:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 17:47:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 17:47:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 17:47:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 17:47:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-08 17:47:25,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-08 17:47:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2025-03-08 17:47:25,180 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2025-03-08 17:47:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 17:47:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 17:47:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 17:47:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 17:47:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 17:47:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 17:47:25,461 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 17:47:25,463 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 17:47:25,501 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-08 17:47:25,536 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-08 17:47:25,563 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-08 17:47:25,598 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2796: havoc #t~ret81;havoc #t~ite83.base, #t~ite83.offset;havoc #t~ret82.base, #t~ret82.offset; [2025-03-08 17:47:25,688 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-03-08 17:47:25,692 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 17:47:25,708 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2821: havoc #t~ret89.base, #t~ret89.offset; [2025-03-08 17:47:25,830 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7535: havoc aws_array_list_ensure_capacity_#t~ret764#1; [2025-03-08 17:47:25,831 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7412: call ULTIMATE.dealloc(aws_array_list_calc_necessary_size_~#index_inc~0#1.base, aws_array_list_calc_necessary_size_~#index_inc~0#1.offset);havoc aws_array_list_calc_necessary_size_~#index_inc~0#1.base, aws_array_list_calc_necessary_size_~#index_inc~0#1.offset; [2025-03-08 17:47:25,831 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7513: call ULTIMATE.dealloc(aws_array_list_ensure_capacity_~#necessary_size~0#1.base, aws_array_list_ensure_capacity_~#necessary_size~0#1.offset);havoc aws_array_list_ensure_capacity_~#necessary_size~0#1.base, aws_array_list_ensure_capacity_~#necessary_size~0#1.offset; [2025-03-08 17:47:25,831 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7522: havoc aws_array_list_ensure_capacity_#t~ret757#1; [2025-03-08 17:47:25,849 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7391: havoc #t~ret681.base, #t~ret681.offset; [2025-03-08 17:47:25,870 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2615: havoc #t~ret59#1; [2025-03-08 17:47:31,082 INFO L? ?]: Removed 167 outVars from TransFormulas that were not future-live. [2025-03-08 17:47:31,082 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 17:47:31,096 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 17:47:31,099 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 17:47:31,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:47:31 BoogieIcfgContainer [2025-03-08 17:47:31,100 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 17:47:31,101 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 17:47:31,101 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 17:47:31,105 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 17:47:31,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:47:23" (1/3) ... [2025-03-08 17:47:31,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14950fef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:47:31, skipping insertion in model container [2025-03-08 17:47:31,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:24" (2/3) ... [2025-03-08 17:47:31,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14950fef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:47:31, skipping insertion in model container [2025-03-08 17:47:31,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:47:31" (3/3) ... [2025-03-08 17:47:31,108 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_set_at_harness.i [2025-03-08 17:47:31,120 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 17:47:31,121 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_set_at_harness.i that has 24 procedures, 290 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-08 17:47:31,178 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 17:47:31,187 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;@3d17d7bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 17:47:31,187 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 17:47:31,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 290 states, 169 states have (on average 1.21301775147929) internal successors, (205), 171 states have internal predecessors, (205), 96 states have call successors, (96), 23 states have call predecessors, (96), 23 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 17:47:31,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-08 17:47:31,208 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:47:31,209 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:47:31,210 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:47:31,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:47:31,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1564178686, now seen corresponding path program 1 times [2025-03-08 17:47:31,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:47:31,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736606702] [2025-03-08 17:47:31,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:47:31,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:47:35,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-08 17:47:36,009 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-08 17:47:36,010 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:47:36,010 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:47:36,464 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2025-03-08 17:47:36,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:47:36,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736606702] [2025-03-08 17:47:36,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736606702] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:47:36,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671341086] [2025-03-08 17:47:36,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:47:36,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:47:36,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:47:36,469 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 17:47:36,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 17:47:40,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-08 17:47:41,474 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-08 17:47:41,474 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:47:41,475 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:47:41,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 4469 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 17:47:41,503 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 17:47:41,525 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2025-03-08 17:47:41,527 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 17:47:41,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671341086] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:47:41,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 17:47:41,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 17:47:41,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984334371] [2025-03-08 17:47:41,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:47:41,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 17:47:41,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:47:41,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 17:47:41,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 17:47:41,556 INFO L87 Difference]: Start difference. First operand has 290 states, 169 states have (on average 1.21301775147929) internal successors, (205), 171 states have internal predecessors, (205), 96 states have call successors, (96), 23 states have call predecessors, (96), 23 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2025-03-08 17:47:41,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:47:41,608 INFO L93 Difference]: Finished difference Result 573 states and 842 transitions. [2025-03-08 17:47:41,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 17:47:41,610 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 156 [2025-03-08 17:47:41,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:47:41,616 INFO L225 Difference]: With dead ends: 573 [2025-03-08 17:47:41,616 INFO L226 Difference]: Without dead ends: 285 [2025-03-08 17:47:41,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 17:47:41,622 INFO L435 NwaCegarLoop]: 395 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, 395 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 17:47:41,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 17:47:41,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2025-03-08 17:47:41,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2025-03-08 17:47:41,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 165 states have (on average 1.206060606060606) internal successors, (199), 167 states have internal predecessors, (199), 96 states have call successors, (96), 23 states have call predecessors, (96), 23 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2025-03-08 17:47:41,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 390 transitions. [2025-03-08 17:47:41,684 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 390 transitions. Word has length 156 [2025-03-08 17:47:41,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:47:41,684 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 390 transitions. [2025-03-08 17:47:41,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2025-03-08 17:47:41,686 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 390 transitions. [2025-03-08 17:47:41,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-08 17:47:41,692 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:47:41,692 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:47:41,706 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 17:47:41,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-08 17:47:41,894 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:47:41,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:47:41,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1919416283, now seen corresponding path program 1 times [2025-03-08 17:47:41,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:47:41,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476747922] [2025-03-08 17:47:41,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:47:41,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:47:45,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-08 17:47:46,111 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-08 17:47:46,112 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:47:46,112 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:47:47,129 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2025-03-08 17:47:47,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:47:47,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476747922] [2025-03-08 17:47:47,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476747922] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:47:47,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753916043] [2025-03-08 17:47:47,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:47:47,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:47:47,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:47:47,135 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 17:47:47,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 17:47:51,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-08 17:47:52,462 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-08 17:47:52,462 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:47:52,462 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:47:52,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 4469 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 17:47:52,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 17:47:53,178 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2025-03-08 17:47:53,179 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 17:47:53,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753916043] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:47:53,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 17:47:53,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-03-08 17:47:53,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113273995] [2025-03-08 17:47:53,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:47:53,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 17:47:53,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:47:53,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 17:47:53,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 17:47:53,181 INFO L87 Difference]: Start difference. First operand 285 states and 390 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2025-03-08 17:47:56,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:47:56,336 INFO L93 Difference]: Finished difference Result 546 states and 764 transitions. [2025-03-08 17:47:56,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 17:47:56,337 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 156 [2025-03-08 17:47:56,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:47:56,341 INFO L225 Difference]: With dead ends: 546 [2025-03-08 17:47:56,341 INFO L226 Difference]: Without dead ends: 287 [2025-03-08 17:47:56,342 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-03-08 17:47:56,343 INFO L435 NwaCegarLoop]: 332 mSDtfsCounter, 405 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2025-03-08 17:47:56,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 1257 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2025-03-08 17:47:56,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2025-03-08 17:47:56,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2025-03-08 17:47:56,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 166 states have (on average 1.2048192771084338) internal successors, (200), 169 states have internal predecessors, (200), 96 states have call successors, (96), 23 states have call predecessors, (96), 24 states have return successors, (111), 95 states have call predecessors, (111), 95 states have call successors, (111) [2025-03-08 17:47:56,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 407 transitions. [2025-03-08 17:47:56,371 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 407 transitions. Word has length 156 [2025-03-08 17:47:56,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:47:56,371 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 407 transitions. [2025-03-08 17:47:56,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2025-03-08 17:47:56,372 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 407 transitions. [2025-03-08 17:47:56,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2025-03-08 17:47:56,374 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:47:56,374 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 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] [2025-03-08 17:47:56,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 17:47:56,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-08 17:47:56,575 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:47:56,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:47:56,576 INFO L85 PathProgramCache]: Analyzing trace with hash -787847557, now seen corresponding path program 1 times [2025-03-08 17:47:56,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:47:56,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693123625] [2025-03-08 17:47:56,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:47:56,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:48:00,294 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 186 statements into 1 equivalence classes. [2025-03-08 17:48:00,472 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 186 of 186 statements. [2025-03-08 17:48:00,472 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:48:00,472 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:48:01,866 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2025-03-08 17:48:01,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:48:01,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693123625] [2025-03-08 17:48:01,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693123625] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:48:01,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206398270] [2025-03-08 17:48:01,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:48:01,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:48:01,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:48:01,869 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 17:48:01,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 17:48:06,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 186 statements into 1 equivalence classes. [2025-03-08 17:48:06,933 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 186 of 186 statements. [2025-03-08 17:48:06,933 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:48:06,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:48:06,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 4723 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 17:48:06,967 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 17:48:08,854 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-03-08 17:48:08,854 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 17:48:08,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206398270] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:48:08,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 17:48:08,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-03-08 17:48:08,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262910444] [2025-03-08 17:48:08,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:48:08,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 17:48:08,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:48:08,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 17:48:08,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-08 17:48:08,858 INFO L87 Difference]: Start difference. First operand 287 states and 407 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2025-03-08 17:48:15,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:48:15,165 INFO L93 Difference]: Finished difference Result 518 states and 734 transitions. [2025-03-08 17:48:15,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 17:48:15,166 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 186 [2025-03-08 17:48:15,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:48:15,169 INFO L225 Difference]: With dead ends: 518 [2025-03-08 17:48:15,169 INFO L226 Difference]: Without dead ends: 287 [2025-03-08 17:48:15,171 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2025-03-08 17:48:15,171 INFO L435 NwaCegarLoop]: 301 mSDtfsCounter, 470 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2025-03-08 17:48:15,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 1630 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2025-03-08 17:48:15,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2025-03-08 17:48:15,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2025-03-08 17:48:15,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 166 states have (on average 1.2048192771084338) internal successors, (200), 169 states have internal predecessors, (200), 96 states have call successors, (96), 23 states have call predecessors, (96), 24 states have return successors, (107), 95 states have call predecessors, (107), 95 states have call successors, (107) [2025-03-08 17:48:15,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 403 transitions. [2025-03-08 17:48:15,190 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 403 transitions. Word has length 186 [2025-03-08 17:48:15,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:48:15,191 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 403 transitions. [2025-03-08 17:48:15,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2025-03-08 17:48:15,191 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 403 transitions. [2025-03-08 17:48:15,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2025-03-08 17:48:15,193 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:48:15,193 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:48:15,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 17:48:15,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:48:15,394 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:48:15,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:48:15,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1069265053, now seen corresponding path program 2 times [2025-03-08 17:48:15,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:48:15,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729139673] [2025-03-08 17:48:15,394 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 17:48:15,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:48:19,286 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 201 statements into 2 equivalence classes. [2025-03-08 17:48:19,390 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 33 of 201 statements. [2025-03-08 17:48:19,390 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 17:48:19,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:48:20,236 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2025-03-08 17:48:20,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:48:20,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729139673] [2025-03-08 17:48:20,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729139673] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:48:20,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:48:20,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 17:48:20,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882876074] [2025-03-08 17:48:20,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:48:20,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 17:48:20,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:48:20,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 17:48:20,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 17:48:20,238 INFO L87 Difference]: Start difference. First operand 287 states and 403 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2025-03-08 17:48:20,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:48:20,424 INFO L93 Difference]: Finished difference Result 500 states and 692 transitions. [2025-03-08 17:48:20,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 17:48:20,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 201 [2025-03-08 17:48:20,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:48:20,428 INFO L225 Difference]: With dead ends: 500 [2025-03-08 17:48:20,431 INFO L226 Difference]: Without dead ends: 292 [2025-03-08 17:48:20,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 17:48:20,433 INFO L435 NwaCegarLoop]: 387 mSDtfsCounter, 0 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 17:48:20,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1542 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 17:48:20,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2025-03-08 17:48:20,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2025-03-08 17:48:20,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 170 states have (on average 1.2) internal successors, (204), 173 states have internal predecessors, (204), 96 states have call successors, (96), 23 states have call predecessors, (96), 25 states have return successors, (109), 96 states have call predecessors, (109), 95 states have call successors, (109) [2025-03-08 17:48:20,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 409 transitions. [2025-03-08 17:48:20,456 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 409 transitions. Word has length 201 [2025-03-08 17:48:20,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:48:20,459 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 409 transitions. [2025-03-08 17:48:20,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2025-03-08 17:48:20,460 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 409 transitions. [2025-03-08 17:48:20,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2025-03-08 17:48:20,461 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:48:20,461 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-03-08 17:48:20,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 17:48:20,462 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:48:20,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:48:20,464 INFO L85 PathProgramCache]: Analyzing trace with hash 683144035, now seen corresponding path program 1 times [2025-03-08 17:48:20,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:48:20,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118916681] [2025-03-08 17:48:20,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:48:20,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:48:24,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 207 statements into 1 equivalence classes. [2025-03-08 17:48:24,292 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 207 of 207 statements. [2025-03-08 17:48:24,292 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:48:24,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:48:25,781 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2025-03-08 17:48:25,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:48:25,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118916681] [2025-03-08 17:48:25,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118916681] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:48:25,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624079620] [2025-03-08 17:48:25,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:48:25,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:48:25,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:48:25,785 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 17:48:25,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 17:48:30,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 207 statements into 1 equivalence classes. [2025-03-08 17:48:30,614 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 207 of 207 statements. [2025-03-08 17:48:30,614 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:48:30,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:48:30,638 INFO L256 TraceCheckSpWp]: Trace formula consists of 4854 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-08 17:48:30,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 17:48:32,793 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2025-03-08 17:48:32,793 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 17:48:32,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624079620] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:48:32,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 17:48:32,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2025-03-08 17:48:32,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516570745] [2025-03-08 17:48:32,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:48:32,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 17:48:32,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:48:32,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 17:48:32,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2025-03-08 17:48:32,796 INFO L87 Difference]: Start difference. First operand 292 states and 409 transitions. Second operand has 9 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2025-03-08 17:48:39,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:48:39,673 INFO L93 Difference]: Finished difference Result 522 states and 728 transitions. [2025-03-08 17:48:39,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 17:48:39,673 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) Word has length 207 [2025-03-08 17:48:39,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:48:39,676 INFO L225 Difference]: With dead ends: 522 [2025-03-08 17:48:39,676 INFO L226 Difference]: Without dead ends: 292 [2025-03-08 17:48:39,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2025-03-08 17:48:39,678 INFO L435 NwaCegarLoop]: 292 mSDtfsCounter, 508 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2025-03-08 17:48:39,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 1856 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2025-03-08 17:48:39,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2025-03-08 17:48:39,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2025-03-08 17:48:39,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 170 states have (on average 1.2) internal successors, (204), 173 states have internal predecessors, (204), 96 states have call successors, (96), 23 states have call predecessors, (96), 25 states have return successors, (103), 96 states have call predecessors, (103), 95 states have call successors, (103) [2025-03-08 17:48:39,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 403 transitions. [2025-03-08 17:48:39,691 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 403 transitions. Word has length 207 [2025-03-08 17:48:39,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:48:39,692 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 403 transitions. [2025-03-08 17:48:39,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2025-03-08 17:48:39,692 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 403 transitions. [2025-03-08 17:48:39,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2025-03-08 17:48:39,693 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:48:39,694 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2025-03-08 17:48:39,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-08 17:48:39,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:48:39,894 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:48:39,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:48:39,895 INFO L85 PathProgramCache]: Analyzing trace with hash 2017591175, now seen corresponding path program 2 times [2025-03-08 17:48:39,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:48:39,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198613292] [2025-03-08 17:48:39,895 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 17:48:39,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:48:43,633 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 222 statements into 2 equivalence classes. [2025-03-08 17:48:44,168 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 222 of 222 statements. [2025-03-08 17:48:44,169 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-08 17:48:44,170 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:48:45,932 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2025-03-08 17:48:45,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:48:45,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198613292] [2025-03-08 17:48:45,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198613292] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:48:45,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:48:45,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 17:48:45,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043348045] [2025-03-08 17:48:45,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:48:45,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 17:48:45,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:48:45,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 17:48:45,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 17:48:45,934 INFO L87 Difference]: Start difference. First operand 292 states and 403 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2025-03-08 17:48:46,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:48:46,349 INFO L93 Difference]: Finished difference Result 575 states and 799 transitions. [2025-03-08 17:48:46,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 17:48:46,349 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) Word has length 222 [2025-03-08 17:48:46,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:48:46,354 INFO L225 Difference]: With dead ends: 575 [2025-03-08 17:48:46,354 INFO L226 Difference]: Without dead ends: 334 [2025-03-08 17:48:46,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-08 17:48:46,356 INFO L435 NwaCegarLoop]: 409 mSDtfsCounter, 23 mSDsluCounter, 2021 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 17:48:46,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 2430 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 17:48:46,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2025-03-08 17:48:46,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 308. [2025-03-08 17:48:46,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 180 states have (on average 1.1944444444444444) internal successors, (215), 183 states have internal predecessors, (215), 101 states have call successors, (101), 23 states have call predecessors, (101), 26 states have return successors, (110), 102 states have call predecessors, (110), 100 states have call successors, (110) [2025-03-08 17:48:46,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 426 transitions. [2025-03-08 17:48:46,374 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 426 transitions. Word has length 222 [2025-03-08 17:48:46,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:48:46,375 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 426 transitions. [2025-03-08 17:48:46,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2025-03-08 17:48:46,375 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 426 transitions. [2025-03-08 17:48:46,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2025-03-08 17:48:46,378 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:48:46,379 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2025-03-08 17:48:46,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 17:48:46,379 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:48:46,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:48:46,380 INFO L85 PathProgramCache]: Analyzing trace with hash -441533274, now seen corresponding path program 1 times [2025-03-08 17:48:46,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:48:46,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192994822] [2025-03-08 17:48:46,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:48:46,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:48:50,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 222 statements into 1 equivalence classes. [2025-03-08 17:48:50,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 222 of 222 statements. [2025-03-08 17:48:50,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:48:50,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:48:51,880 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2025-03-08 17:48:51,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:48:51,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192994822] [2025-03-08 17:48:51,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192994822] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:48:51,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871739800] [2025-03-08 17:48:51,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:48:51,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:48:51,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:48:51,882 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 17:48:51,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process