./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.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_priority_queue_init_dynamic_harness-1.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 f4db5fb03820aea666082345ea177387bf1c218ce33dad19402cb646ed5abf58 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 18:13:01,315 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 18:13:01,361 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 18:13:01,365 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 18:13:01,365 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 18:13:01,385 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 18:13:01,385 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 18:13:01,385 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 18:13:01,386 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 18:13:01,386 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 18:13:01,386 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 18:13:01,386 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 18:13:01,386 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 18:13:01,386 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 18:13:01,386 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 18:13:01,386 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 18:13:01,386 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 18:13:01,387 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 18:13:01,387 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 18:13:01,387 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 18:13:01,387 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 18:13:01,387 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 18:13:01,387 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 18:13:01,387 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 18:13:01,387 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 18:13:01,387 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 18:13:01,387 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 18:13:01,387 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 18:13:01,388 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 18:13:01,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:13:01,388 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 18:13:01,388 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 18:13:01,388 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 18:13:01,388 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 18:13:01,388 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 18:13:01,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 18:13:01,388 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 18:13:01,388 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 18:13:01,388 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 18:13:01,389 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 18:13:01,389 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 -> f4db5fb03820aea666082345ea177387bf1c218ce33dad19402cb646ed5abf58 [2025-03-08 18:13:01,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 18:13:01,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 18:13:01,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 18:13:01,598 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 18:13:01,599 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 18:13:01,600 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i [2025-03-08 18:13:02,709 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dccfb86f/e7e46392d28349768b0ebf641bb284c4/FLAGba34c2d00 [2025-03-08 18:13:03,172 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 18:13:03,172 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i [2025-03-08 18:13:03,206 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dccfb86f/e7e46392d28349768b0ebf641bb284c4/FLAGba34c2d00 [2025-03-08 18:13:03,221 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dccfb86f/e7e46392d28349768b0ebf641bb284c4 [2025-03-08 18:13:03,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 18:13:03,224 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 18:13:03,226 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 18:13:03,226 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 18:13:03,229 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 18:13:03,229 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:13:03" (1/1) ... [2025-03-08 18:13:03,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1827a99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:13:03, skipping insertion in model container [2025-03-08 18:13:03,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:13:03" (1/1) ... [2025-03-08 18:13:03,289 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 18:13:03,434 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4505,4518] [2025-03-08 18:13:03,439 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4565,4578] [2025-03-08 18:13:03,874 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:13:03,875 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:13:03,875 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:13:03,875 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:13:03,876 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:13:03,883 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:13:03,883 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:13:03,884 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:13:03,884 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:13:04,159 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:13:04,159 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:13:04,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:13:04,210 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 18:13:04,219 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4505,4518] [2025-03-08 18:13:04,220 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4565,4578] [2025-03-08 18:13:04,258 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:13:04,259 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:13:04,259 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:13:04,259 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:13:04,260 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:13:04,265 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:13:04,265 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:13:04,266 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:13:04,266 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:13:04,328 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:13:04,328 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:13:04,337 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7703-7714] [2025-03-08 18:13:04,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:13:04,518 INFO L204 MainTranslator]: Completed translation [2025-03-08 18:13:04,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:13:04 WrapperNode [2025-03-08 18:13:04,518 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 18:13:04,519 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 18:13:04,519 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 18:13:04,519 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 18:13:04,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:13:04" (1/1) ... [2025-03-08 18:13:04,585 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:13:04" (1/1) ... [2025-03-08 18:13:04,622 INFO L138 Inliner]: procedures = 678, calls = 1512, calls flagged for inlining = 52, calls inlined = 9, statements flattened = 737 [2025-03-08 18:13:04,623 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 18:13:04,623 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 18:13:04,623 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 18:13:04,623 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 18:13:04,630 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:13:04" (1/1) ... [2025-03-08 18:13:04,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:13:04" (1/1) ... [2025-03-08 18:13:04,635 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:13:04" (1/1) ... [2025-03-08 18:13:04,680 INFO L175 MemorySlicer]: Split 287 memory accesses to 5 slices as follows [2, 238, 7, 5, 35]. 83 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 6, 1, 5, 0]. The 239 writes are split as follows [0, 232, 1, 0, 6]. [2025-03-08 18:13:04,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:13:04" (1/1) ... [2025-03-08 18:13:04,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:13:04" (1/1) ... [2025-03-08 18:13:04,699 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:13:04" (1/1) ... [2025-03-08 18:13:04,701 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:13:04" (1/1) ... [2025-03-08 18:13:04,705 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:13:04" (1/1) ... [2025-03-08 18:13:04,707 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:13:04" (1/1) ... [2025-03-08 18:13:04,720 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 18:13:04,723 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 18:13:04,723 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 18:13:04,723 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 18:13:04,724 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:13:04" (1/1) ... [2025-03-08 18:13:04,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:13:04,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:13:04,748 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 18:13:04,752 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 18:13:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-03-08 18:13:04,770 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-03-08 18:13:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 18:13:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-08 18:13:04,771 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-08 18:13:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 18:13:04,771 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 18:13:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2025-03-08 18:13:04,772 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2025-03-08 18:13:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 18:13:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 18:13:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 18:13:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 18:13:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 18:13:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 18:13:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 18:13:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 18:13:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 18:13:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 18:13:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-08 18:13:04,773 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-08 18:13:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 18:13:04,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 18:13:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 18:13:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 18:13:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 18:13:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 18:13:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 18:13:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 18:13:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 18:13:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 18:13:04,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 18:13:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 18:13:04,773 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 18:13:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-08 18:13:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-08 18:13:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-03-08 18:13:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-03-08 18:13:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 18:13:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 18:13:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-08 18:13:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 18:13:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2025-03-08 18:13:04,775 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2025-03-08 18:13:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-03-08 18:13:04,776 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-03-08 18:13:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 18:13:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 18:13:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 18:13:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 18:13:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 18:13:05,019 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 18:13:05,022 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 18:13:05,057 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-08 18:13:05,060 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-08 18:13:05,091 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-08 18:13:05,135 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 18:13:05,140 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7341: havoc #t~ret657.base, #t~ret657.offset; [2025-03-08 18:13:05,215 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7494: havoc aws_priority_queue_backpointers_valid_#t~ret687#1;havoc aws_priority_queue_backpointers_valid_#t~short688#1; [2025-03-08 18:13:05,253 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 18:13:05,256 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 18:13:05,263 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2821: havoc #t~ret89.base, #t~ret89.offset; [2025-03-08 18:13:10,318 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3202: call ULTIMATE.dealloc(aws_array_list_init_dynamic_~#allocation_size~0#1.base, aws_array_list_init_dynamic_~#allocation_size~0#1.offset);havoc aws_array_list_init_dynamic_~#allocation_size~0#1.base, aws_array_list_init_dynamic_~#allocation_size~0#1.offset; [2025-03-08 18:13:10,390 INFO L? ?]: Removed 144 outVars from TransFormulas that were not future-live. [2025-03-08 18:13:10,391 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 18:13:10,403 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 18:13:10,404 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 18:13:10,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:13:10 BoogieIcfgContainer [2025-03-08 18:13:10,404 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 18:13:10,406 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 18:13:10,406 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 18:13:10,409 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 18:13:10,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:13:03" (1/3) ... [2025-03-08 18:13:10,410 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79914b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:13:10, skipping insertion in model container [2025-03-08 18:13:10,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:13:04" (2/3) ... [2025-03-08 18:13:10,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79914b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:13:10, skipping insertion in model container [2025-03-08 18:13:10,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:13:10" (3/3) ... [2025-03-08 18:13:10,413 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness-1.i [2025-03-08 18:13:10,422 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 18:13:10,426 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_init_dynamic_harness-1.i that has 17 procedures, 202 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-03-08 18:13:10,471 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 18:13:10,478 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;@405ae554, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 18:13:10,479 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 18:13:10,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 202 states, 130 states have (on average 1.2461538461538462) internal successors, (162), 130 states have internal predecessors, (162), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2025-03-08 18:13:10,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2025-03-08 18:13:10,491 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:13:10,491 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2025-03-08 18:13:10,492 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:13:10,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:13:10,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1878808883, now seen corresponding path program 1 times [2025-03-08 18:13:10,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:13:10,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835486067] [2025-03-08 18:13:10,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:13:10,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:13:14,649 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-03-08 18:13:14,964 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-03-08 18:13:14,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:13:14,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:13:15,403 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2025-03-08 18:13:15,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:13:15,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835486067] [2025-03-08 18:13:15,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835486067] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:13:15,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822166736] [2025-03-08 18:13:15,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:13:15,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:13:15,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:13:15,408 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 18:13:15,412 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 18:13:19,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-03-08 18:13:19,819 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-03-08 18:13:19,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:13:19,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:13:19,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 4190 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 18:13:19,846 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:13:19,860 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2025-03-08 18:13:19,861 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:13:19,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822166736] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:13:19,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:13:19,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 18:13:19,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544655882] [2025-03-08 18:13:19,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:13:19,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 18:13:19,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:13:19,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 18:13:19,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 18:13:19,879 INFO L87 Difference]: Start difference. First operand has 202 states, 130 states have (on average 1.2461538461538462) internal successors, (162), 130 states have internal predecessors, (162), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-03-08 18:13:19,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:13:19,907 INFO L93 Difference]: Finished difference Result 395 states and 567 transitions. [2025-03-08 18:13:19,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 18:13:19,908 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 111 [2025-03-08 18:13:19,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:13:19,913 INFO L225 Difference]: With dead ends: 395 [2025-03-08 18:13:19,914 INFO L226 Difference]: Without dead ends: 195 [2025-03-08 18:13:19,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 112 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 18:13:19,918 INFO L435 NwaCegarLoop]: 268 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, 268 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 18:13:19,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 18:13:19,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2025-03-08 18:13:19,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2025-03-08 18:13:19,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 122 states have (on average 1.2295081967213115) internal successors, (150), 124 states have internal predecessors, (150), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2025-03-08 18:13:19,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 260 transitions. [2025-03-08 18:13:19,957 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 260 transitions. Word has length 111 [2025-03-08 18:13:19,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:13:19,959 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 260 transitions. [2025-03-08 18:13:19,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-03-08 18:13:19,959 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 260 transitions. [2025-03-08 18:13:19,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2025-03-08 18:13:19,965 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:13:19,965 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:13:19,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 18:13:20,170 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 18:13:20,170 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:13:20,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:13:20,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1163173288, now seen corresponding path program 1 times [2025-03-08 18:13:20,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:13:20,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026719307] [2025-03-08 18:13:20,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:13:20,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:13:23,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-03-08 18:13:23,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-03-08 18:13:23,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:13:23,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:13:24,930 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2025-03-08 18:13:24,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:13:24,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026719307] [2025-03-08 18:13:24,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026719307] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:13:24,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 18:13:24,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 18:13:24,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123249286] [2025-03-08 18:13:24,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:13:24,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 18:13:24,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:13:24,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 18:13:24,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 18:13:24,934 INFO L87 Difference]: Start difference. First operand 195 states and 260 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2025-03-08 18:13:25,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:13:25,164 INFO L93 Difference]: Finished difference Result 297 states and 399 transitions. [2025-03-08 18:13:25,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 18:13:25,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 145 [2025-03-08 18:13:25,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:13:25,172 INFO L225 Difference]: With dead ends: 297 [2025-03-08 18:13:25,172 INFO L226 Difference]: Without dead ends: 200 [2025-03-08 18:13:25,172 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 18:13:25,173 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 0 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 18:13:25,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1022 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 18:13:25,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2025-03-08 18:13:25,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2025-03-08 18:13:25,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 126 states have (on average 1.2222222222222223) internal successors, (154), 128 states have internal predecessors, (154), 56 states have call successors, (56), 16 states have call predecessors, (56), 17 states have return successors, (57), 55 states have call predecessors, (57), 54 states have call successors, (57) [2025-03-08 18:13:25,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 267 transitions. [2025-03-08 18:13:25,194 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 267 transitions. Word has length 145 [2025-03-08 18:13:25,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:13:25,194 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 267 transitions. [2025-03-08 18:13:25,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2025-03-08 18:13:25,194 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 267 transitions. [2025-03-08 18:13:25,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-08 18:13:25,197 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:13:25,197 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:13:25,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 18:13:25,197 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:13:25,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:13:25,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1697648642, now seen corresponding path program 1 times [2025-03-08 18:13:25,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:13:25,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893807101] [2025-03-08 18:13:25,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:13:25,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:13:28,751 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-08 18:13:28,909 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-08 18:13:28,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:13:28,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:13:30,427 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2025-03-08 18:13:30,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:13:30,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893807101] [2025-03-08 18:13:30,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893807101] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:13:30,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531483372] [2025-03-08 18:13:30,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:13:30,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:13:30,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:13:30,430 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 18:13:30,431 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 18:13:34,339 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-08 18:13:34,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-08 18:13:34,741 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:13:34,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:13:34,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 4362 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-08 18:13:34,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:13:35,382 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2025-03-08 18:13:35,383 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:13:35,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531483372] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:13:35,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:13:35,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2025-03-08 18:13:35,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10918487] [2025-03-08 18:13:35,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:13:35,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 18:13:35,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:13:35,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 18:13:35,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 18:13:35,387 INFO L87 Difference]: Start difference. First operand 200 states and 267 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2025-03-08 18:13:35,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:13:35,928 INFO L93 Difference]: Finished difference Result 385 states and 507 transitions. [2025-03-08 18:13:35,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 18:13:35,929 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 147 [2025-03-08 18:13:35,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:13:35,931 INFO L225 Difference]: With dead ends: 385 [2025-03-08 18:13:35,932 INFO L226 Difference]: Without dead ends: 200 [2025-03-08 18:13:35,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-08 18:13:35,933 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 6 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 18:13:35,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1251 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 18:13:35,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2025-03-08 18:13:35,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2025-03-08 18:13:35,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 126 states have (on average 1.2142857142857142) internal successors, (153), 128 states have internal predecessors, (153), 56 states have call successors, (56), 16 states have call predecessors, (56), 17 states have return successors, (57), 55 states have call predecessors, (57), 54 states have call successors, (57) [2025-03-08 18:13:35,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 266 transitions. [2025-03-08 18:13:35,950 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 266 transitions. Word has length 147 [2025-03-08 18:13:35,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:13:35,951 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 266 transitions. [2025-03-08 18:13:35,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2025-03-08 18:13:35,951 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 266 transitions. [2025-03-08 18:13:35,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-03-08 18:13:35,955 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:13:35,955 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:13:35,971 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 18:13:36,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-08 18:13:36,156 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:13:36,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:13:36,156 INFO L85 PathProgramCache]: Analyzing trace with hash -200883002, now seen corresponding path program 1 times [2025-03-08 18:13:36,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:13:36,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811494035] [2025-03-08 18:13:36,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:13:36,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:13:39,638 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-03-08 18:13:40,007 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-03-08 18:13:40,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:13:40,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:13:41,524 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2025-03-08 18:13:41,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:13:41,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811494035] [2025-03-08 18:13:41,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811494035] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:13:41,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018729434] [2025-03-08 18:13:41,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:13:41,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:13:41,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:13:41,526 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 18:13:41,527 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 18:13:45,538 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-03-08 18:13:59,394 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-03-08 18:13:59,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:13:59,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:13:59,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 4376 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 18:13:59,424 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:13:59,677 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-03-08 18:13:59,678 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:13:59,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018729434] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:13:59,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:13:59,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2025-03-08 18:13:59,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053867311] [2025-03-08 18:13:59,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:13:59,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 18:13:59,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:13:59,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 18:13:59,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-08 18:13:59,679 INFO L87 Difference]: Start difference. First operand 200 states and 266 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2025-03-08 18:13:59,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:13:59,742 INFO L93 Difference]: Finished difference Result 380 states and 503 transitions. [2025-03-08 18:13:59,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 18:13:59,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 149 [2025-03-08 18:13:59,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:13:59,744 INFO L225 Difference]: With dead ends: 380 [2025-03-08 18:13:59,744 INFO L226 Difference]: Without dead ends: 201 [2025-03-08 18:13:59,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-08 18:13:59,745 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 0 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 18:13:59,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 513 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 18:13:59,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2025-03-08 18:13:59,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2025-03-08 18:13:59,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 127 states have (on average 1.2125984251968505) internal successors, (154), 129 states have internal predecessors, (154), 56 states have call successors, (56), 16 states have call predecessors, (56), 17 states have return successors, (57), 55 states have call predecessors, (57), 54 states have call successors, (57) [2025-03-08 18:13:59,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 267 transitions. [2025-03-08 18:13:59,762 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 267 transitions. Word has length 149 [2025-03-08 18:13:59,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:13:59,762 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 267 transitions. [2025-03-08 18:13:59,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2025-03-08 18:13:59,763 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 267 transitions. [2025-03-08 18:13:59,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2025-03-08 18:13:59,764 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:13:59,764 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:13:59,953 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 18:13:59,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:13:59,964 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:13:59,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:13:59,965 INFO L85 PathProgramCache]: Analyzing trace with hash 671006526, now seen corresponding path program 1 times [2025-03-08 18:13:59,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:13:59,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852844430] [2025-03-08 18:13:59,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:13:59,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:14:03,432 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-03-08 18:14:03,868 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-03-08 18:14:03,868 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:14:03,868 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:14:05,931 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2025-03-08 18:14:05,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:14:05,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852844430] [2025-03-08 18:14:05,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852844430] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:14:05,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966396935] [2025-03-08 18:14:05,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:14:05,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:14:05,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:14:05,933 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 18:14:05,934 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 18:14:10,146 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes.