./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_push_back_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_push_back_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 ff502e881eb1ce65711f1131688c06c00f482d17207657a0aaf21c7da411f1b1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 17:47:11,386 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 17:47:11,435 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 17:47:11,440 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 17:47:11,440 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 17:47:11,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 17:47:11,461 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 17:47:11,462 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 17:47:11,462 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 17:47:11,462 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 17:47:11,462 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 17:47:11,462 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 17:47:11,463 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 17:47:11,463 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 17:47:11,464 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 17:47:11,464 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 17:47:11,464 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 17:47:11,464 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 17:47:11,464 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 17:47:11,464 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 17:47:11,464 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 17:47:11,464 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 17:47:11,464 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 17:47:11,464 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 17:47:11,464 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 17:47:11,464 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 17:47:11,464 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 17:47:11,464 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 17:47:11,464 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 17:47:11,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:47:11,464 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 17:47:11,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 17:47:11,465 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 17:47:11,465 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 17:47:11,465 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 17:47:11,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 17:47:11,465 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 17:47:11,465 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 17:47:11,465 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 17:47:11,465 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 17:47:11,465 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 -> ff502e881eb1ce65711f1131688c06c00f482d17207657a0aaf21c7da411f1b1 [2025-03-08 17:47:11,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 17:47:11,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 17:47:11,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 17:47:11,695 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 17:47:11,695 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 17:47:11,697 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i [2025-03-08 17:47:12,828 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e73a88b2/85c84a893ac9452c93c65b3aeeb9657e/FLAG8ae2d486d [2025-03-08 17:47:13,288 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 17:47:13,290 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i [2025-03-08 17:47:13,323 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e73a88b2/85c84a893ac9452c93c65b3aeeb9657e/FLAG8ae2d486d [2025-03-08 17:47:13,412 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e73a88b2/85c84a893ac9452c93c65b3aeeb9657e [2025-03-08 17:47:13,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 17:47:13,415 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 17:47:13,416 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 17:47:13,416 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 17:47:13,419 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 17:47:13,420 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:47:13" (1/1) ... [2025-03-08 17:47:13,420 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c8b7d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:13, skipping insertion in model container [2025-03-08 17:47:13,420 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:47:13" (1/1) ... [2025-03-08 17:47:13,490 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 17:47:13,691 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_push_back_harness.i[4498,4511] [2025-03-08 17:47:13,699 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_push_back_harness.i[4558,4571] [2025-03-08 17:47:14,169 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,170 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,170 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,171 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,171 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,178 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,178 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,179 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,180 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,181 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,181 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,182 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,182 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,437 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,445 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:47:14,522 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 17:47:14,532 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_push_back_harness.i[4498,4511] [2025-03-08 17:47:14,534 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_push_back_harness.i[4558,4571] [2025-03-08 17:47:14,580 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,581 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,582 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,582 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,583 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,589 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,592 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,593 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,593 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,595 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,595 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,595 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,595 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,682 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,685 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:14,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7770-7781] [2025-03-08 17:47:14,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:47:14,882 INFO L204 MainTranslator]: Completed translation [2025-03-08 17:47:14,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:14 WrapperNode [2025-03-08 17:47:14,883 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 17:47:14,884 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 17:47:14,884 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 17:47:14,884 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 17:47:14,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:14" (1/1) ... [2025-03-08 17:47:14,937 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:14" (1/1) ... [2025-03-08 17:47:14,986 INFO L138 Inliner]: procedures = 680, calls = 1677, calls flagged for inlining = 52, calls inlined = 13, statements flattened = 898 [2025-03-08 17:47:14,986 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 17:47:14,986 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 17:47:14,986 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 17:47:14,986 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 17:47:14,995 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:14" (1/1) ... [2025-03-08 17:47:14,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:14" (1/1) ... [2025-03-08 17:47:15,006 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:14" (1/1) ... [2025-03-08 17:47:15,067 INFO L175 MemorySlicer]: Split 334 memory accesses to 6 slices as follows [238, 2, 6, 8, 74, 6]. 71 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 0, 5, 10, 1]. The 241 writes are split as follows [232, 0, 2, 0, 6, 1]. [2025-03-08 17:47:15,069 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:14" (1/1) ... [2025-03-08 17:47:15,069 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:14" (1/1) ... [2025-03-08 17:47:15,105 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:14" (1/1) ... [2025-03-08 17:47:15,107 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:14" (1/1) ... [2025-03-08 17:47:15,120 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:14" (1/1) ... [2025-03-08 17:47:15,126 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:14" (1/1) ... [2025-03-08 17:47:15,141 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 17:47:15,145 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 17:47:15,145 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 17:47:15,145 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 17:47:15,146 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:14" (1/1) ... [2025-03-08 17:47:15,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:47:15,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:47:15,173 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 17:47:15,176 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 17:47:15,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 17:47:15,193 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-08 17:47:15,193 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-08 17:47:15,193 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-08 17:47:15,193 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-08 17:47:15,193 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 17:47:15,193 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 17:47:15,193 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2025-03-08 17:47:15,193 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2025-03-08 17:47:15,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 17:47:15,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 17:47:15,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 17:47:15,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 17:47:15,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 17:47:15,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 17:47:15,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 17:47:15,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 17:47:15,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 17:47:15,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 17:47:15,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 17:47:15,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 17:47:15,194 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-08 17:47:15,194 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-08 17:47:15,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 17:47:15,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 17:47:15,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 17:47:15,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 17:47:15,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 17:47:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 17:47:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 17:47:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 17:47:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 17:47:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 17:47:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-03-08 17:47:15,195 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-03-08 17:47:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 17:47:15,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 17:47:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 17:47:15,195 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 17:47:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-08 17:47:15,195 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-08 17:47:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-08 17:47:15,195 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-08 17:47:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-08 17:47:15,196 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-08 17:47:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 17:47:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 17:47:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 17:47:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 17:47:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 17:47:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 17:47:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-03-08 17:47:15,196 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-03-08 17:47:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-03-08 17:47:15,196 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-03-08 17:47:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-03-08 17:47:15,196 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-03-08 17:47:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 17:47:15,196 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 17:47:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-03-08 17:47:15,196 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-03-08 17:47:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2025-03-08 17:47:15,196 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2025-03-08 17:47:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 17:47:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-03-08 17:47:15,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-03-08 17:47:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 17:47:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 17:47:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 17:47:15,197 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-08 17:47:15,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-03-08 17:47:15,197 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-08 17:47:15,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 17:47:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 17:47:15,440 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 17:47:15,442 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 17:47:15,482 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-08 17:47:15,507 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-08 17:47:15,525 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-08 17:47:15,549 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 17:47:15,613 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 17:47:15,615 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 17:47:15,625 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2821: havoc #t~ret89.base, #t~ret89.offset; [2025-03-08 17:47:15,643 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7391: havoc #t~ret681.base, #t~ret681.offset; [2025-03-08 17:47:15,664 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2615: havoc #t~ret59#1; [2025-03-08 17:47:20,794 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7535: havoc aws_array_list_ensure_capacity_#t~ret764#1; [2025-03-08 17:47:20,794 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 17:47:20,794 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 17:47:20,794 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7522: havoc aws_array_list_ensure_capacity_#t~ret757#1; [2025-03-08 17:47:20,794 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3321: havoc aws_array_list_push_back_#t~ret166#1; [2025-03-08 17:47:20,893 INFO L? ?]: Removed 190 outVars from TransFormulas that were not future-live. [2025-03-08 17:47:20,893 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 17:47:20,910 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 17:47:20,911 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 17:47:20,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:47:20 BoogieIcfgContainer [2025-03-08 17:47:20,912 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 17:47:20,913 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 17:47:20,913 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 17:47:20,917 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 17:47:20,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:47:13" (1/3) ... [2025-03-08 17:47:20,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ba705b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:47:20, skipping insertion in model container [2025-03-08 17:47:20,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:14" (2/3) ... [2025-03-08 17:47:20,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ba705b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:47:20, skipping insertion in model container [2025-03-08 17:47:20,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:47:20" (3/3) ... [2025-03-08 17:47:20,922 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_push_back_harness.i [2025-03-08 17:47:20,935 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 17:47:20,936 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_push_back_harness.i that has 23 procedures, 306 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-08 17:47:20,987 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 17:47:20,998 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;@5e9db400, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 17:47:20,999 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 17:47:21,002 INFO L276 IsEmpty]: Start isEmpty. Operand has 306 states, 179 states have (on average 1.217877094972067) internal successors, (218), 180 states have internal predecessors, (218), 103 states have call successors, (103), 22 states have call predecessors, (103), 22 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2025-03-08 17:47:21,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-03-08 17:47:21,012 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:47:21,012 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:47:21,012 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:47:21,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:47:21,016 INFO L85 PathProgramCache]: Analyzing trace with hash 554003197, now seen corresponding path program 1 times [2025-03-08 17:47:21,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:47:21,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144397296] [2025-03-08 17:47:21,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:47:21,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:47:25,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-08 17:47:25,432 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-08 17:47:25,433 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:47:25,433 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:47:25,826 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2025-03-08 17:47:25,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:47:25,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144397296] [2025-03-08 17:47:25,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144397296] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:47:25,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549760954] [2025-03-08 17:47:25,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:47:25,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:47:25,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:47:25,830 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 17:47:25,832 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 17:47:29,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-08 17:47:30,245 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-08 17:47:30,245 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:47:30,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:47:30,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 4280 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 17:47:30,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 17:47:30,291 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2025-03-08 17:47:30,291 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 17:47:30,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549760954] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:47:30,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 17:47:30,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 17:47:30,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280833812] [2025-03-08 17:47:30,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:47:30,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 17:47:30,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:47:30,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 17:47:30,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 17:47:30,310 INFO L87 Difference]: Start difference. First operand has 306 states, 179 states have (on average 1.217877094972067) internal successors, (218), 180 states have internal predecessors, (218), 103 states have call successors, (103), 22 states have call predecessors, (103), 22 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-03-08 17:47:30,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:47:30,364 INFO L93 Difference]: Finished difference Result 605 states and 900 transitions. [2025-03-08 17:47:30,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 17:47:30,365 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 135 [2025-03-08 17:47:30,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:47:30,371 INFO L225 Difference]: With dead ends: 605 [2025-03-08 17:47:30,371 INFO L226 Difference]: Without dead ends: 301 [2025-03-08 17:47:30,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 136 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 17:47:30,378 INFO L435 NwaCegarLoop]: 422 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, 422 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 17:47:30,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 17:47:30,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2025-03-08 17:47:30,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2025-03-08 17:47:30,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 175 states have (on average 1.2114285714285715) internal successors, (212), 176 states have internal predecessors, (212), 103 states have call successors, (103), 22 states have call predecessors, (103), 22 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2025-03-08 17:47:30,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 417 transitions. [2025-03-08 17:47:30,426 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 417 transitions. Word has length 135 [2025-03-08 17:47:30,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:47:30,428 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 417 transitions. [2025-03-08 17:47:30,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-03-08 17:47:30,428 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 417 transitions. [2025-03-08 17:47:30,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-03-08 17:47:30,430 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:47:30,431 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:47:30,444 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 17:47:30,632 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 17:47:30,632 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:47:30,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:47:30,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1547041216, now seen corresponding path program 1 times [2025-03-08 17:47:30,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:47:30,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270865495] [2025-03-08 17:47:30,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:47:30,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:47:34,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-08 17:47:34,373 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-08 17:47:34,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:47:34,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:47:35,278 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2025-03-08 17:47:35,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:47:35,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270865495] [2025-03-08 17:47:35,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270865495] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:47:35,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184130449] [2025-03-08 17:47:35,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:47:35,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:47:35,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:47:35,280 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 17:47:35,281 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 17:47:39,312 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-08 17:47:39,781 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-08 17:47:39,781 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:47:39,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:47:39,801 INFO L256 TraceCheckSpWp]: Trace formula consists of 4280 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 17:47:39,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 17:47:40,434 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2025-03-08 17:47:40,435 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 17:47:40,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184130449] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:47:40,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 17:47:40,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-03-08 17:47:40,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987684403] [2025-03-08 17:47:40,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:47:40,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 17:47:40,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:47:40,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 17:47:40,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 17:47:40,440 INFO L87 Difference]: Start difference. First operand 301 states and 417 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-08 17:47:44,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:47:44,481 INFO L93 Difference]: Finished difference Result 578 states and 821 transitions. [2025-03-08 17:47:44,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 17:47:44,482 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 135 [2025-03-08 17:47:44,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:47:44,487 INFO L225 Difference]: With dead ends: 578 [2025-03-08 17:47:44,487 INFO L226 Difference]: Without dead ends: 303 [2025-03-08 17:47:44,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-03-08 17:47:44,489 INFO L435 NwaCegarLoop]: 325 mSDtfsCounter, 457 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2025-03-08 17:47:44,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 1154 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2025-03-08 17:47:44,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2025-03-08 17:47:44,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2025-03-08 17:47:44,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 176 states have (on average 1.2102272727272727) internal successors, (213), 178 states have internal predecessors, (213), 103 states have call successors, (103), 22 states have call predecessors, (103), 23 states have return successors, (121), 102 states have call predecessors, (121), 102 states have call successors, (121) [2025-03-08 17:47:44,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 437 transitions. [2025-03-08 17:47:44,511 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 437 transitions. Word has length 135 [2025-03-08 17:47:44,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:47:44,512 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 437 transitions. [2025-03-08 17:47:44,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-08 17:47:44,512 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 437 transitions. [2025-03-08 17:47:44,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2025-03-08 17:47:44,513 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:47:44,514 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:47:44,528 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 17:47:44,714 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 17:47:44,714 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:47:44,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:47:44,715 INFO L85 PathProgramCache]: Analyzing trace with hash 878067400, now seen corresponding path program 1 times [2025-03-08 17:47:44,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:47:44,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900185370] [2025-03-08 17:47:44,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:47:44,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:47:48,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-03-08 17:47:48,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-03-08 17:47:48,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:47:48,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:47:49,500 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2025-03-08 17:47:49,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:47:49,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900185370] [2025-03-08 17:47:49,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900185370] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:47:49,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119044815] [2025-03-08 17:47:49,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:47:49,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:47:49,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:47:49,503 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 17:47:49,504 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 17:47:53,606 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-03-08 17:47:53,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-03-08 17:47:53,999 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:47:53,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:47:54,020 INFO L256 TraceCheckSpWp]: Trace formula consists of 4534 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 17:47:54,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 17:47:55,260 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2025-03-08 17:47:55,260 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 17:47:55,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119044815] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:47:55,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 17:47:55,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2025-03-08 17:47:55,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12404815] [2025-03-08 17:47:55,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:47:55,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 17:47:55,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:47:55,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 17:47:55,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-03-08 17:47:55,262 INFO L87 Difference]: Start difference. First operand 303 states and 437 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2025-03-08 17:48:00,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:48:00,127 INFO L93 Difference]: Finished difference Result 554 states and 799 transitions. [2025-03-08 17:48:00,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 17:48:00,127 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 165 [2025-03-08 17:48:00,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:48:00,130 INFO L225 Difference]: With dead ends: 554 [2025-03-08 17:48:00,131 INFO L226 Difference]: Without dead ends: 303 [2025-03-08 17:48:00,132 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2025-03-08 17:48:00,132 INFO L435 NwaCegarLoop]: 322 mSDtfsCounter, 522 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2025-03-08 17:48:00,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 1397 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2025-03-08 17:48:00,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2025-03-08 17:48:00,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2025-03-08 17:48:00,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 176 states have (on average 1.2102272727272727) internal successors, (213), 178 states have internal predecessors, (213), 103 states have call successors, (103), 22 states have call predecessors, (103), 23 states have return successors, (118), 102 states have call predecessors, (118), 102 states have call successors, (118) [2025-03-08 17:48:00,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 434 transitions. [2025-03-08 17:48:00,158 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 434 transitions. Word has length 165 [2025-03-08 17:48:00,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:48:00,159 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 434 transitions. [2025-03-08 17:48:00,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2025-03-08 17:48:00,159 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 434 transitions. [2025-03-08 17:48:00,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2025-03-08 17:48:00,162 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:48:00,162 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:48:00,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-08 17:48:00,362 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 17:48:00,362 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:48:00,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:48:00,363 INFO L85 PathProgramCache]: Analyzing trace with hash 914880142, now seen corresponding path program 2 times [2025-03-08 17:48:00,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:48:00,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820384468] [2025-03-08 17:48:00,363 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 17:48:00,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:48:03,810 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 180 statements into 2 equivalence classes. [2025-03-08 17:48:04,279 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 180 of 180 statements. [2025-03-08 17:48:04,280 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-08 17:48:04,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:48:05,791 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2025-03-08 17:48:05,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:48:05,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820384468] [2025-03-08 17:48:05,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820384468] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:48:05,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:48:05,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 17:48:05,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240723495] [2025-03-08 17:48:05,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:48:05,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 17:48:05,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:48:05,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 17:48:05,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-08 17:48:05,793 INFO L87 Difference]: Start difference. First operand 303 states and 434 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2025-03-08 17:48:08,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:48:08,628 INFO L93 Difference]: Finished difference Result 560 states and 804 transitions. [2025-03-08 17:48:08,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 17:48:08,628 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 180 [2025-03-08 17:48:08,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:48:08,631 INFO L225 Difference]: With dead ends: 560 [2025-03-08 17:48:08,631 INFO L226 Difference]: Without dead ends: 315 [2025-03-08 17:48:08,633 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-03-08 17:48:08,633 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 185 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-03-08 17:48:08,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 2360 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-03-08 17:48:08,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2025-03-08 17:48:08,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2025-03-08 17:48:08,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 182 states have (on average 1.2087912087912087) internal successors, (220), 184 states have internal predecessors, (220), 108 states have call successors, (108), 23 states have call predecessors, (108), 24 states have return successors, (123), 107 states have call predecessors, (123), 107 states have call successors, (123) [2025-03-08 17:48:08,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 451 transitions. [2025-03-08 17:48:08,653 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 451 transitions. Word has length 180 [2025-03-08 17:48:08,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:48:08,654 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 451 transitions. [2025-03-08 17:48:08,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2025-03-08 17:48:08,654 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 451 transitions. [2025-03-08 17:48:08,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2025-03-08 17:48:08,656 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:48:08,656 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:48:08,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 17:48:08,658 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:48:08,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:48:08,658 INFO L85 PathProgramCache]: Analyzing trace with hash -813591064, now seen corresponding path program 1 times [2025-03-08 17:48:08,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:48:08,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21770453] [2025-03-08 17:48:08,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:48:08,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:48:12,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes. [2025-03-08 17:48:12,247 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 210 of 210 statements. [2025-03-08 17:48:12,248 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:48:12,248 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:48:14,184 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2025-03-08 17:48:14,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:48:14,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21770453] [2025-03-08 17:48:14,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21770453] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:48:14,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:48:14,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 17:48:14,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539967215] [2025-03-08 17:48:14,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:48:14,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 17:48:14,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:48:14,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 17:48:14,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 17:48:14,185 INFO L87 Difference]: Start difference. First operand 315 states and 451 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2025-03-08 17:48:14,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:48:14,651 INFO L93 Difference]: Finished difference Result 599 states and 860 transitions. [2025-03-08 17:48:14,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 17:48:14,652 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 210 [2025-03-08 17:48:14,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:48:14,656 INFO L225 Difference]: With dead ends: 599 [2025-03-08 17:48:14,656 INFO L226 Difference]: Without dead ends: 333 [2025-03-08 17:48:14,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-08 17:48:14,659 INFO L435 NwaCegarLoop]: 412 mSDtfsCounter, 6 mSDsluCounter, 2054 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2466 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 17:48:14,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2466 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 17:48:14,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2025-03-08 17:48:14,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 329. [2025-03-08 17:48:14,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 191 states have (on average 1.2041884816753927) internal successors, (230), 193 states have internal predecessors, (230), 112 states have call successors, (112), 23 states have call predecessors, (112), 25 states have return successors, (129), 112 states have call predecessors, (129), 111 states have call successors, (129) [2025-03-08 17:48:14,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 471 transitions. [2025-03-08 17:48:14,681 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 471 transitions. Word has length 210 [2025-03-08 17:48:14,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:48:14,683 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 471 transitions. [2025-03-08 17:48:14,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2025-03-08 17:48:14,683 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 471 transitions. [2025-03-08 17:48:14,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2025-03-08 17:48:14,685 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:48:14,685 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:48:14,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 17:48:14,685 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:48:14,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:48:14,686 INFO L85 PathProgramCache]: Analyzing trace with hash -298070615, now seen corresponding path program 1 times [2025-03-08 17:48:14,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:48:14,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000961864] [2025-03-08 17:48:14,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:48:14,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:48:18,171 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes. [2025-03-08 17:48:18,263 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 210 of 210 statements. [2025-03-08 17:48:18,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:48:18,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:48:20,471 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2025-03-08 17:48:20,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:48:20,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000961864] [2025-03-08 17:48:20,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000961864] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:48:20,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:48:20,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 17:48:20,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85334405] [2025-03-08 17:48:20,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:48:20,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 17:48:20,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:48:20,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 17:48:20,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-08 17:48:20,473 INFO L87 Difference]: Start difference. First operand 329 states and 471 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2025-03-08 17:48:21,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:48:21,116 INFO L93 Difference]: Finished difference Result 604 states and 865 transitions. [2025-03-08 17:48:21,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 17:48:21,116 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 210 [2025-03-08 17:48:21,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:48:21,120 INFO L225 Difference]: With dead ends: 604 [2025-03-08 17:48:21,120 INFO L226 Difference]: Without dead ends: 341 [2025-03-08 17:48:21,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-08 17:48:21,121 INFO L435 NwaCegarLoop]: 412 mSDtfsCounter, 7 mSDsluCounter, 2461 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 17:48:21,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2873 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 17:48:21,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2025-03-08 17:48:21,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 335. [2025-03-08 17:48:21,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 194 states have (on average 1.2010309278350515) internal successors, (233), 196 states have internal predecessors, (233), 115 states have call successors, (115), 23 states have call predecessors, (115), 25 states have return successors, (132), 115 states have call predecessors, (132), 114 states have call successors, (132) [2025-03-08 17:48:21,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 480 transitions. [2025-03-08 17:48:21,136 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 480 transitions. Word has length 210 [2025-03-08 17:48:21,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:48:21,136 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 480 transitions. [2025-03-08 17:48:21,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2025-03-08 17:48:21,136 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 480 transitions. [2025-03-08 17:48:21,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2025-03-08 17:48:21,138 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:48:21,138 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:48:21,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 17:48:21,138 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:48:21,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:48:21,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1483429320, now seen corresponding path program 1 times [2025-03-08 17:48:21,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:48:21,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25660560] [2025-03-08 17:48:21,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:48:21,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:48:24,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes. [2025-03-08 17:48:25,740 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 210 of 210 statements. [2025-03-08 17:48:25,740 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:48:25,740 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:48:30,314 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2025-03-08 17:48:30,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:48:30,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25660560] [2025-03-08 17:48:30,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25660560] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:48:30,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773420989] [2025-03-08 17:48:30,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:48:30,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:48:30,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:48:30,317 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 17:48:30,318 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 17:48:34,845 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes. [2025-03-08 17:48:35,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 210 of 210 statements. [2025-03-08 17:48:35,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:48:35,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:48:35,282 INFO L256 TraceCheckSpWp]: Trace formula consists of 4909 conjuncts, 56 conjuncts are in the unsatisfiable core [2025-03-08 17:48:35,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 17:48:36,957 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_ensure_array_list_has_allocated_data_member_~list.offset_8 Int)) (and (= |c_#memory_$Pointer$#4.base| (store |c_old(#memory_$Pointer$#4.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#4.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#4.base| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8)))) (<= v_ensure_array_list_has_allocated_data_member_~list.offset_8 |c_ensure_array_list_has_allocated_data_member_#in~list.offset|) (= (store |c_old(#memory_$Pointer$#4.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#4.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#4.offset| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8))) |c_#memory_$Pointer$#4.offset|))) is different from true [2025-03-08 17:48:37,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 17:48:37,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2025-03-08 17:48:37,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 17:48:37,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13