./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_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 02a1ef197fe295e0adddb84ae3aa2db56396688008aeca91e1ab4b161b42690c --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 03:01:34,247 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 03:01:34,291 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 03:01:34,295 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 03:01:34,296 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 03:01:34,317 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 03:01:34,318 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 03:01:34,318 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 03:01:34,319 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 03:01:34,319 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 03:01:34,320 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 03:01:34,320 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 03:01:34,320 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 03:01:34,320 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 03:01:34,320 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 03:01:34,321 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 03:01:34,321 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 03:01:34,321 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 03:01:34,321 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 03:01:34,321 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 03:01:34,321 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 03:01:34,321 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 03:01:34,322 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 03:01:34,322 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 03:01:34,322 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 03:01:34,322 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 03:01:34,322 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 03:01:34,322 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 03:01:34,322 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 03:01:34,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 03:01:34,323 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 03:01:34,323 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 03:01:34,323 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 03:01:34,323 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 03:01:34,323 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 03:01:34,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 03:01:34,323 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 03:01:34,323 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 03:01:34,323 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 03:01:34,323 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 03:01:34,324 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 -> 02a1ef197fe295e0adddb84ae3aa2db56396688008aeca91e1ab4b161b42690c [2025-03-04 03:01:34,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 03:01:34,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 03:01:34,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 03:01:34,592 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 03:01:34,592 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 03:01:34,594 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2025-03-04 03:01:35,778 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dd580321/cc83a6c008a94f678563d3d9e8f8efb5/FLAG877875196 [2025-03-04 03:01:36,250 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 03:01:36,253 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2025-03-04 03:01:36,283 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dd580321/cc83a6c008a94f678563d3d9e8f8efb5/FLAG877875196 [2025-03-04 03:01:36,350 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dd580321/cc83a6c008a94f678563d3d9e8f8efb5 [2025-03-04 03:01:36,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 03:01:36,353 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 03:01:36,354 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 03:01:36,354 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 03:01:36,357 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 03:01:36,358 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:01:36" (1/1) ... [2025-03-04 03:01:36,358 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@380b4e9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:36, skipping insertion in model container [2025-03-04 03:01:36,359 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:01:36" (1/1) ... [2025-03-04 03:01:36,413 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 03:01:36,615 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.i[4505,4518] [2025-03-04 03:01:36,621 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.i[4565,4578] [2025-03-04 03:01:37,118 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:37,119 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:37,119 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:37,119 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:37,120 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:37,127 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:37,128 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:37,129 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:37,129 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:37,484 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:37,485 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:37,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 03:01:37,559 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 03:01:37,570 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.i[4505,4518] [2025-03-04 03:01:37,575 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.i[4565,4578] [2025-03-04 03:01:37,629 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:37,630 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:37,631 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:37,631 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:37,632 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:37,640 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:37,641 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:37,644 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:37,645 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:37,711 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:37,712 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:01:37,719 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7703-7714] [2025-03-04 03:01:37,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 03:01:37,902 INFO L204 MainTranslator]: Completed translation [2025-03-04 03:01:37,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:37 WrapperNode [2025-03-04 03:01:37,903 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 03:01:37,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 03:01:37,904 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 03:01:37,904 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 03:01:37,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:37" (1/1) ... [2025-03-04 03:01:37,966 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:37" (1/1) ... [2025-03-04 03:01:38,019 INFO L138 Inliner]: procedures = 678, calls = 1530, calls flagged for inlining = 52, calls inlined = 9, statements flattened = 763 [2025-03-04 03:01:38,024 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 03:01:38,024 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 03:01:38,024 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 03:01:38,025 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 03:01:38,033 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:37" (1/1) ... [2025-03-04 03:01:38,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:37" (1/1) ... [2025-03-04 03:01:38,038 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:37" (1/1) ... [2025-03-04 03:01:38,093 INFO L175 MemorySlicer]: Split 301 memory accesses to 5 slices as follows [2, 238, 8, 48, 5]. 79 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 6, 2, 0, 5]. The 252 writes are split as follows [0, 232, 1, 19, 0]. [2025-03-04 03:01:38,094 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:37" (1/1) ... [2025-03-04 03:01:38,094 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:37" (1/1) ... [2025-03-04 03:01:38,123 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:37" (1/1) ... [2025-03-04 03:01:38,126 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:37" (1/1) ... [2025-03-04 03:01:38,133 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:37" (1/1) ... [2025-03-04 03:01:38,141 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:37" (1/1) ... [2025-03-04 03:01:38,152 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 03:01:38,153 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 03:01:38,153 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 03:01:38,153 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 03:01:38,154 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:37" (1/1) ... [2025-03-04 03:01:38,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 03:01:38,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:01:38,180 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 03:01:38,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 03:01:38,204 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-03-04 03:01:38,204 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-03-04 03:01:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 03:01:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-04 03:01:38,205 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-04 03:01:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 03:01:38,205 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 03:01:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2025-03-04 03:01:38,205 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2025-03-04 03:01:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 03:01:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 03:01:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 03:01:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 03:01:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 03:01:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 03:01:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 03:01:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 03:01:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 03:01:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 03:01:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-04 03:01:38,206 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-04 03:01:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 03:01:38,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 03:01:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 03:01:38,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 03:01:38,207 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-04 03:01:38,207 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-04 03:01:38,207 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-03-04 03:01:38,207 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-03-04 03:01:38,207 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 03:01:38,207 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 03:01:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 03:01:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 03:01:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 03:01:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 03:01:38,208 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 03:01:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-04 03:01:38,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-04 03:01:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 03:01:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 03:01:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 03:01:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 03:01:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 03:01:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2025-03-04 03:01:38,208 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2025-03-04 03:01:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-03-04 03:01:38,208 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-03-04 03:01:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 03:01:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 03:01:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 03:01:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 03:01:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 03:01:38,445 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 03:01:38,447 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 03:01:38,500 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-04 03:01:38,502 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-04 03:01:38,528 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-04 03:01:38,563 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2796: havoc #t~ret81;havoc #t~ite83.base, #t~ite83.offset;havoc #t~ret82.base, #t~ret82.offset; [2025-03-04 03:01:38,567 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7341: havoc #t~ret656.base, #t~ret656.offset; [2025-03-04 03:01:38,640 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7494: havoc aws_priority_queue_backpointers_valid_#t~ret686#1;havoc aws_priority_queue_backpointers_valid_#t~short687#1; [2025-03-04 03:01:38,677 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-03-04 03:01:38,682 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 03:01:38,688 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2821: havoc #t~ret89.base, #t~ret89.offset; [2025-03-04 03:01:44,918 INFO L1325 $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; [2025-03-04 03:01:45,005 INFO L? ?]: Removed 150 outVars from TransFormulas that were not future-live. [2025-03-04 03:01:45,006 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 03:01:45,014 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 03:01:45,015 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 03:01:45,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:01:45 BoogieIcfgContainer [2025-03-04 03:01:45,015 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 03:01:45,017 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 03:01:45,017 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 03:01:45,020 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 03:01:45,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:01:36" (1/3) ... [2025-03-04 03:01:45,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b01f0f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:01:45, skipping insertion in model container [2025-03-04 03:01:45,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:01:37" (2/3) ... [2025-03-04 03:01:45,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b01f0f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:01:45, skipping insertion in model container [2025-03-04 03:01:45,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:01:45" (3/3) ... [2025-03-04 03:01:45,022 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness.i [2025-03-04 03:01:45,032 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 03:01:45,034 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_init_dynamic_harness.i that has 17 procedures, 215 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-03-04 03:01:45,083 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 03:01:45,093 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;@4584dfdb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 03:01:45,093 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 03:01:45,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 215 states, 137 states have (on average 1.2335766423357664) internal successors, (169), 137 states have internal predecessors, (169), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2025-03-04 03:01:45,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-03-04 03:01:45,108 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:01:45,109 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 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] [2025-03-04 03:01:45,110 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:01:45,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:01:45,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1424344677, now seen corresponding path program 1 times [2025-03-04 03:01:45,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:01:45,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273307057] [2025-03-04 03:01:45,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:01:45,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:01:49,085 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-03-04 03:01:49,410 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-03-04 03:01:49,411 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:01:49,411 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:01:49,859 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2025-03-04 03:01:49,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:01:49,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273307057] [2025-03-04 03:01:49,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273307057] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:01:49,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570965238] [2025-03-04 03:01:49,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:01:49,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:01:49,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:01:49,865 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 03:01:49,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 03:01:53,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-03-04 03:01:54,274 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-03-04 03:01:54,275 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:01:54,275 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:01:54,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 4418 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 03:01:54,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 03:01:54,319 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2025-03-04 03:01:54,320 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 03:01:54,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570965238] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 03:01:54,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 03:01:54,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 03:01:54,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913488659] [2025-03-04 03:01:54,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 03:01:54,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 03:01:54,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 03:01:54,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 03:01:54,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 03:01:54,344 INFO L87 Difference]: Start difference. First operand has 215 states, 137 states have (on average 1.2335766423357664) internal successors, (169), 137 states have internal predecessors, (169), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2025-03-04 03:01:54,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 03:01:54,382 INFO L93 Difference]: Finished difference Result 404 states and 582 transitions. [2025-03-04 03:01:54,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 03:01:54,384 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 144 [2025-03-04 03:01:54,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 03:01:54,390 INFO L225 Difference]: With dead ends: 404 [2025-03-04 03:01:54,391 INFO L226 Difference]: Without dead ends: 208 [2025-03-04 03:01:54,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 03:01:54,396 INFO L435 NwaCegarLoop]: 287 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, 287 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 03:01:54,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 03:01:54,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2025-03-04 03:01:54,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2025-03-04 03:01:54,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 129 states have (on average 1.2170542635658914) internal successors, (157), 131 states have internal predecessors, (157), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2025-03-04 03:01:54,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 279 transitions. [2025-03-04 03:01:54,443 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 279 transitions. Word has length 144 [2025-03-04 03:01:54,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 03:01:54,444 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 279 transitions. [2025-03-04 03:01:54,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2025-03-04 03:01:54,444 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 279 transitions. [2025-03-04 03:01:54,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2025-03-04 03:01:54,449 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:01:54,450 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 03:01:54,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-04 03:01:54,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-04 03:01:54,651 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:01:54,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:01:54,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1661782624, now seen corresponding path program 1 times [2025-03-04 03:01:54,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:01:54,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948563231] [2025-03-04 03:01:54,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:01:54,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:01:58,396 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 178 statements into 1 equivalence classes. [2025-03-04 03:01:58,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 178 of 178 statements. [2025-03-04 03:01:58,612 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:01:58,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:02:00,247 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2025-03-04 03:02:00,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:02:00,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948563231] [2025-03-04 03:02:00,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948563231] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:02:00,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313138081] [2025-03-04 03:02:00,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:02:00,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:02:00,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:02:00,251 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 03:02:00,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 03:02:04,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 178 statements into 1 equivalence classes. [2025-03-04 03:02:04,765 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 178 of 178 statements. [2025-03-04 03:02:04,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:02:04,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:02:04,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 4566 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 03:02:04,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 03:02:05,386 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2025-03-04 03:02:05,386 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 03:02:05,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313138081] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 03:02:05,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 03:02:05,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2025-03-04 03:02:05,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253710635] [2025-03-04 03:02:05,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 03:02:05,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 03:02:05,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 03:02:05,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 03:02:05,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-04 03:02:05,388 INFO L87 Difference]: Start difference. First operand 208 states and 279 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2025-03-04 03:02:05,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 03:02:05,935 INFO L93 Difference]: Finished difference Result 384 states and 509 transitions. [2025-03-04 03:02:05,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 03:02:05,935 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 178 [2025-03-04 03:02:05,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 03:02:05,938 INFO L225 Difference]: With dead ends: 384 [2025-03-04 03:02:05,938 INFO L226 Difference]: Without dead ends: 208 [2025-03-04 03:02:05,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-04 03:02:05,940 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 6 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1346 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 [2025-03-04 03:02:05,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1346 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 03:02:05,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2025-03-04 03:02:05,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2025-03-04 03:02:05,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 129 states have (on average 1.2093023255813953) internal successors, (156), 131 states have internal predecessors, (156), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2025-03-04 03:02:05,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 278 transitions. [2025-03-04 03:02:05,960 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 278 transitions. Word has length 178 [2025-03-04 03:02:05,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 03:02:05,962 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 278 transitions. [2025-03-04 03:02:05,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2025-03-04 03:02:05,962 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 278 transitions. [2025-03-04 03:02:05,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2025-03-04 03:02:05,964 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:02:05,964 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 03:02:05,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 03:02:06,164 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 [2025-03-04 03:02:06,165 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:02:06,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:02:06,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1291233090, now seen corresponding path program 1 times [2025-03-04 03:02:06,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:02:06,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50329640] [2025-03-04 03:02:06,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:02:06,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:02:09,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-03-04 03:02:10,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-03-04 03:02:10,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:02:10,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:02:12,049 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2025-03-04 03:02:12,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:02:12,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50329640] [2025-03-04 03:02:12,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50329640] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:02:12,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699880953] [2025-03-04 03:02:12,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:02:12,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:02:12,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:02:12,053 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 03:02:12,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 03:02:16,184 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-03-04 03:02:16,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-03-04 03:02:16,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:02:16,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:02:16,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 4580 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-04 03:02:16,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 03:02:17,425 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2025-03-04 03:02:17,428 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 03:02:17,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699880953] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 03:02:17,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 03:02:17,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2025-03-04 03:02:17,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690041601] [2025-03-04 03:02:17,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 03:02:17,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 03:02:17,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 03:02:17,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 03:02:17,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2025-03-04 03:02:17,430 INFO L87 Difference]: Start difference. First operand 208 states and 278 transitions. Second operand has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2025-03-04 03:02:17,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 03:02:17,930 INFO L93 Difference]: Finished difference Result 385 states and 509 transitions. [2025-03-04 03:02:17,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 03:02:17,931 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 180 [2025-03-04 03:02:17,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 03:02:17,933 INFO L225 Difference]: With dead ends: 385 [2025-03-04 03:02:17,933 INFO L226 Difference]: Without dead ends: 209 [2025-03-04 03:02:17,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-03-04 03:02:17,935 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 6 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 03:02:17,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1346 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 03:02:17,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2025-03-04 03:02:17,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2025-03-04 03:02:17,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 130 states have (on average 1.2076923076923076) internal successors, (157), 132 states have internal predecessors, (157), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2025-03-04 03:02:17,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 279 transitions. [2025-03-04 03:02:17,952 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 279 transitions. Word has length 180 [2025-03-04 03:02:17,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 03:02:17,953 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 279 transitions. [2025-03-04 03:02:17,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2025-03-04 03:02:17,953 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 279 transitions. [2025-03-04 03:02:17,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2025-03-04 03:02:17,955 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:02:17,955 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 03:02:17,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-04 03:02:18,155 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 [2025-03-04 03:02:18,156 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:02:18,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:02:18,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1292973796, now seen corresponding path program 1 times [2025-03-04 03:02:18,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:02:18,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905120966] [2025-03-04 03:02:18,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:02:18,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:02:21,561 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-03-04 03:02:22,143 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-03-04 03:02:22,143 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:02:22,144 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:02:24,186 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2025-03-04 03:02:24,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:02:24,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905120966] [2025-03-04 03:02:24,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905120966] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:02:24,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336585037] [2025-03-04 03:02:24,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:02:24,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:02:24,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:02:24,188 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 03:02:24,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 03:02:28,197 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-03-04 03:02:48,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-03-04 03:02:48,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:02:48,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:02:48,736 INFO L256 TraceCheckSpWp]: Trace formula consists of 4618 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-04 03:02:48,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 03:02:49,880 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 152 proven. 1 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2025-03-04 03:02:49,881 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 03:02:53,018 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2025-03-04 03:02:53,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336585037] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 03:02:53,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 03:02:53,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-03-04 03:02:53,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435030950] [2025-03-04 03:02:53,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 03:02:53,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-04 03:02:53,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 03:02:53,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-04 03:02:53,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2025-03-04 03:02:53,021 INFO L87 Difference]: Start difference. First operand 209 states and 279 transitions. Second operand has 17 states, 15 states have (on average 6.333333333333333) internal successors, (95), 17 states have internal predecessors, (95), 7 states have call successors, (42), 2 states have call predecessors, (42), 6 states have return successors, (43), 7 states have call predecessors, (43), 7 states have call successors, (43) [2025-03-04 03:02:54,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 03:02:54,074 INFO L93 Difference]: Finished difference Result 387 states and 511 transitions. [2025-03-04 03:02:54,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 03:02:54,075 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.333333333333333) internal successors, (95), 17 states have internal predecessors, (95), 7 states have call successors, (42), 2 states have call predecessors, (42), 6 states have return successors, (43), 7 states have call predecessors, (43), 7 states have call successors, (43) Word has length 182 [2025-03-04 03:02:54,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 03:02:54,077 INFO L225 Difference]: With dead ends: 387 [2025-03-04 03:02:54,078 INFO L226 Difference]: Without dead ends: 210 [2025-03-04 03:02:54,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2025-03-04 03:02:54,079 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 6 mSDsluCounter, 2955 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3227 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-04 03:02:54,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3227 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-04 03:02:54,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2025-03-04 03:02:54,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2025-03-04 03:02:54,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 131 states have (on average 1.2061068702290076) internal successors, (158), 133 states have internal predecessors, (158), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2025-03-04 03:02:54,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 280 transitions. [2025-03-04 03:02:54,096 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 280 transitions. Word has length 182 [2025-03-04 03:02:54,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 03:02:54,097 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 280 transitions. [2025-03-04 03:02:54,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.333333333333333) internal successors, (95), 17 states have internal predecessors, (95), 7 states have call successors, (42), 2 states have call predecessors, (42), 6 states have return successors, (43), 7 states have call predecessors, (43), 7 states have call successors, (43) [2025-03-04 03:02:54,098 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 280 transitions. [2025-03-04 03:02:54,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2025-03-04 03:02:54,101 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:02:54,101 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 9, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 03:02:54,301 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forcibly destroying the process [2025-03-04 03:02:54,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-04 03:02:54,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:02:54,340 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:02:54,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:02:54,341 INFO L85 PathProgramCache]: Analyzing trace with hash 757204286, now seen corresponding path program 2 times [2025-03-04 03:02:54,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:02:54,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509052639] [2025-03-04 03:02:54,341 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 03:02:54,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:02:57,726 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 184 statements into 2 equivalence classes. [2025-03-04 03:02:58,765 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 184 of 184 statements. [2025-03-04 03:02:58,766 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 03:02:58,766 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:03:01,257 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2025-03-04 03:03:01,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:03:01,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509052639] [2025-03-04 03:03:01,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509052639] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:03:01,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062875943] [2025-03-04 03:03:01,258 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 03:03:01,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:03:01,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:03:01,260 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 03:03:01,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 03:03:05,672 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 184 statements into 2 equivalence classes.