./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness_negated.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 188eb157187c65ed20c0598818206541e0c8a29005d59be8891bc5ebe4132fce --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 05:20:42,235 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 05:20:42,287 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 05:20:42,295 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 05:20:42,295 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 05:20:42,311 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 05:20:42,313 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 05:20:42,313 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 05:20:42,313 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 05:20:42,314 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 05:20:42,314 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 05:20:42,314 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 05:20:42,315 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 05:20:42,315 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 05:20:42,315 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 05:20:42,315 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 05:20:42,316 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 05:20:42,316 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 05:20:42,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 05:20:42,316 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 05:20:42,316 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 05:20:42,316 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 05:20:42,316 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 05:20:42,316 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 05:20:42,316 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 05:20:42,316 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 05:20:42,316 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 05:20:42,316 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 05:20:42,316 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 05:20:42,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:20:42,317 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 05:20:42,317 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 05:20:42,317 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 05:20:42,317 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 05:20:42,317 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 05:20:42,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 05:20:42,317 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 05:20:42,318 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 05:20:42,318 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 05:20:42,318 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 05:20:42,318 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 188eb157187c65ed20c0598818206541e0c8a29005d59be8891bc5ebe4132fce [2025-02-06 05:20:42,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 05:20:42,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 05:20:42,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 05:20:42,548 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 05:20:42,548 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 05:20:42,548 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness_negated.i [2025-02-06 05:20:43,643 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e371b97e0/4429fb71164145318b38a555a80e2c53/FLAGe2d34d20d [2025-02-06 05:20:44,065 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 05:20:44,066 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness_negated.i [2025-02-06 05:20:44,095 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e371b97e0/4429fb71164145318b38a555a80e2c53/FLAGe2d34d20d [2025-02-06 05:20:44,224 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e371b97e0/4429fb71164145318b38a555a80e2c53 [2025-02-06 05:20:44,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 05:20:44,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 05:20:44,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 05:20:44,228 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 05:20:44,231 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 05:20:44,232 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:20:44" (1/1) ... [2025-02-06 05:20:44,234 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aa4bec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:20:44, skipping insertion in model container [2025-02-06 05:20:44,235 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:20:44" (1/1) ... [2025-02-06 05:20:44,303 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 05:20:44,487 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness_negated.i[4504,4517] [2025-02-06 05:20:44,493 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness_negated.i[4564,4577] [2025-02-06 05:20:45,125 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:20:45,125 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:20:45,126 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:20:45,126 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:20:45,127 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:20:45,142 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:20:45,143 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:20:45,144 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:20:45,144 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:20:45,609 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:20:45,610 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:20:45,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:20:45,692 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 05:20:45,704 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness_negated.i[4504,4517] [2025-02-06 05:20:45,705 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness_negated.i[4564,4577] [2025-02-06 05:20:45,753 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:20:45,753 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:20:45,754 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:20:45,754 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:20:45,754 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:20:45,759 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:20:45,759 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:20:45,760 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:20:45,761 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:20:45,859 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:20:45,863 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:20:45,870 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7671-7682] [2025-02-06 05:20:45,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:20:46,050 INFO L204 MainTranslator]: Completed translation [2025-02-06 05:20:46,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:20:46 WrapperNode [2025-02-06 05:20:46,051 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 05:20:46,052 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 05:20:46,052 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 05:20:46,052 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 05:20:46,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:20:46" (1/1) ... [2025-02-06 05:20:46,115 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:20:46" (1/1) ... [2025-02-06 05:20:46,175 INFO L138 Inliner]: procedures = 678, calls = 1525, calls flagged for inlining = 53, calls inlined = 9, statements flattened = 683 [2025-02-06 05:20:46,179 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 05:20:46,180 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 05:20:46,180 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 05:20:46,180 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 05:20:46,188 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:20:46" (1/1) ... [2025-02-06 05:20:46,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:20:46" (1/1) ... [2025-02-06 05:20:46,197 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:20:46" (1/1) ... [2025-02-06 05:20:46,261 INFO L175 MemorySlicer]: Split 296 memory accesses to 5 slices as follows [2, 238, 49, 2, 5]. 80 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, 20, 0, 0]. [2025-02-06 05:20:46,261 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:20:46" (1/1) ... [2025-02-06 05:20:46,261 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:20:46" (1/1) ... [2025-02-06 05:20:46,295 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:20:46" (1/1) ... [2025-02-06 05:20:46,297 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:20:46" (1/1) ... [2025-02-06 05:20:46,303 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:20:46" (1/1) ... [2025-02-06 05:20:46,315 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:20:46" (1/1) ... [2025-02-06 05:20:46,322 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 05:20:46,323 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 05:20:46,323 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 05:20:46,323 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 05:20:46,324 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:20:46" (1/1) ... [2025-02-06 05:20:46,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:20:46,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:20:46,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 05:20:46,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 05:20:46,373 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-02-06 05:20:46,373 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-02-06 05:20:46,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 05:20:46,374 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-06 05:20:46,374 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-06 05:20:46,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 05:20:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 05:20:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 05:20:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 05:20:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 05:20:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 05:20:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 05:20:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 05:20:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 05:20:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 05:20:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-06 05:20:46,376 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-06 05:20:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 05:20:46,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 05:20:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 05:20:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 05:20:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 05:20:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 05:20:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 05:20:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 05:20:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 05:20:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 05:20:46,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 05:20:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 05:20:46,377 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 05:20:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-02-06 05:20:46,377 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-02-06 05:20:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-06 05:20:46,377 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-06 05:20:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 05:20:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 05:20:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 05:20:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 05:20:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 05:20:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-02-06 05:20:46,378 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-02-06 05:20:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 05:20:46,378 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 05:20:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 05:20:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 05:20:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 05:20:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 05:20:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 05:20:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 05:20:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 05:20:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 05:20:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 05:20:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 05:20:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 05:20:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-06 05:20:46,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-06 05:20:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-06 05:20:46,379 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-06 05:20:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 05:20:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 05:20:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 05:20:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 05:20:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 05:20:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2025-02-06 05:20:46,379 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2025-02-06 05:20:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-02-06 05:20:46,379 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-02-06 05:20:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 05:20:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 05:20:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 05:20:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 05:20:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 05:20:46,632 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 05:20:46,635 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 05:20:46,673 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-06 05:20:46,675 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-02-06 05:20:46,711 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-06 05:20:46,714 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-06 05:20:46,753 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7309: havoc #t~ret656.base, #t~ret656.offset; [2025-02-06 05:20:46,839 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7462: havoc aws_priority_queue_backpointers_valid_#t~ret686#1;havoc aws_priority_queue_backpointers_valid_#t~short687#1; [2025-02-06 05:20:46,880 INFO L1309 $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; [2025-02-06 05:20:52,301 INFO L? ?]: Removed 134 outVars from TransFormulas that were not future-live. [2025-02-06 05:20:52,301 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 05:20:52,315 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 05:20:52,317 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 05:20:52,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:20:52 BoogieIcfgContainer [2025-02-06 05:20:52,318 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 05:20:52,320 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 05:20:52,320 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 05:20:52,324 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 05:20:52,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:20:44" (1/3) ... [2025-02-06 05:20:52,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1edfbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:20:52, skipping insertion in model container [2025-02-06 05:20:52,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:20:46" (2/3) ... [2025-02-06 05:20:52,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1edfbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:20:52, skipping insertion in model container [2025-02-06 05:20:52,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:20:52" (3/3) ... [2025-02-06 05:20:52,326 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_static_harness_negated.i [2025-02-06 05:20:52,340 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 05:20:52,341 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_init_static_harness_negated.i that has 14 procedures, 166 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-02-06 05:20:52,400 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 05:20:52,412 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;@18cf2ec4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 05:20:52,412 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 05:20:52,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 166 states, 103 states have (on average 1.2135922330097086) internal successors, (125), 104 states have internal predecessors, (125), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2025-02-06 05:20:52,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-02-06 05:20:52,430 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:20:52,431 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 1, 1] [2025-02-06 05:20:52,432 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:20:52,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:20:52,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1815273582, now seen corresponding path program 1 times [2025-02-06 05:20:52,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:20:52,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455747145] [2025-02-06 05:20:52,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:20:52,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:20:57,173 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-02-06 05:20:57,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-02-06 05:20:57,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:20:57,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:20:57,947 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2025-02-06 05:20:57,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:20:57,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455747145] [2025-02-06 05:20:57,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455747145] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:20:57,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208869520] [2025-02-06 05:20:57,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:20:57,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:20:57,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:20:57,952 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:20:57,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 05:21:02,209 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-02-06 05:21:02,678 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-02-06 05:21:02,679 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:21:02,679 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:21:02,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 4467 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 05:21:02,713 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:21:02,736 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2025-02-06 05:21:02,739 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:21:02,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208869520] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:21:02,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:21:02,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 05:21:02,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173463217] [2025-02-06 05:21:02,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:21:02,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 05:21:02,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:21:02,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 05:21:02,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:21:02,766 INFO L87 Difference]: Start difference. First operand has 166 states, 103 states have (on average 1.2135922330097086) internal successors, (125), 104 states have internal predecessors, (125), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2025-02-06 05:21:02,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:21:02,798 INFO L93 Difference]: Finished difference Result 308 states and 436 transitions. [2025-02-06 05:21:02,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 05:21:02,800 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 155 [2025-02-06 05:21:02,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:21:02,806 INFO L225 Difference]: With dead ends: 308 [2025-02-06 05:21:02,806 INFO L226 Difference]: Without dead ends: 160 [2025-02-06 05:21:02,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:21:02,811 INFO L435 NwaCegarLoop]: 217 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, 217 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 [2025-02-06 05:21:02,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 05:21:02,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2025-02-06 05:21:02,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2025-02-06 05:21:02,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 98 states have (on average 1.1734693877551021) internal successors, (115), 99 states have internal predecessors, (115), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2025-02-06 05:21:02,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 210 transitions. [2025-02-06 05:21:02,854 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 210 transitions. Word has length 155 [2025-02-06 05:21:02,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:21:02,855 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 210 transitions. [2025-02-06 05:21:02,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2025-02-06 05:21:02,855 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 210 transitions. [2025-02-06 05:21:02,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-02-06 05:21:02,857 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:21:02,860 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:21:02,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 05:21:03,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-06 05:21:03,061 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:21:03,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:21:03,063 INFO L85 PathProgramCache]: Analyzing trace with hash -260848226, now seen corresponding path program 1 times [2025-02-06 05:21:03,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:21:03,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641062185] [2025-02-06 05:21:03,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:21:03,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:21:06,902 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-02-06 05:21:07,063 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-02-06 05:21:07,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:21:07,064 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:21:08,797 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2025-02-06 05:21:08,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:21:08,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641062185] [2025-02-06 05:21:08,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641062185] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:21:08,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:21:08,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 05:21:08,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002353011] [2025-02-06 05:21:08,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:21:08,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 05:21:08,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:21:08,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 05:21:08,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-06 05:21:08,803 INFO L87 Difference]: Start difference. First operand 160 states and 210 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 5 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) [2025-02-06 05:21:10,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:21:10,380 INFO L93 Difference]: Finished difference Result 254 states and 329 transitions. [2025-02-06 05:21:10,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 05:21:10,381 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 5 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) Word has length 173 [2025-02-06 05:21:10,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:21:10,384 INFO L225 Difference]: With dead ends: 254 [2025-02-06 05:21:10,384 INFO L226 Difference]: Without dead ends: 162 [2025-02-06 05:21:10,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-02-06 05:21:10,385 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 39 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-02-06 05:21:10,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 1006 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-02-06 05:21:10,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2025-02-06 05:21:10,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2025-02-06 05:21:10,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 99 states have (on average 1.1717171717171717) internal successors, (116), 101 states have internal predecessors, (116), 48 states have call successors, (48), 13 states have call predecessors, (48), 14 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2025-02-06 05:21:10,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 213 transitions. [2025-02-06 05:21:10,406 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 213 transitions. Word has length 173 [2025-02-06 05:21:10,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:21:10,408 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 213 transitions. [2025-02-06 05:21:10,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 5 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) [2025-02-06 05:21:10,408 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 213 transitions. [2025-02-06 05:21:10,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-02-06 05:21:10,410 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:21:10,410 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:21:10,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 05:21:10,410 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:21:10,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:21:10,411 INFO L85 PathProgramCache]: Analyzing trace with hash -844962953, now seen corresponding path program 1 times [2025-02-06 05:21:10,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:21:10,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240359085] [2025-02-06 05:21:10,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:21:10,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:21:14,333 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-02-06 05:21:14,513 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-02-06 05:21:14,514 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:21:14,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:21:15,937 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2025-02-06 05:21:15,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:21:15,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240359085] [2025-02-06 05:21:15,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240359085] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:21:15,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:21:15,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 05:21:15,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885897246] [2025-02-06 05:21:15,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:21:15,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 05:21:15,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:21:15,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 05:21:15,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 05:21:15,939 INFO L87 Difference]: Start difference. First operand 162 states and 213 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2025-02-06 05:21:16,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:21:16,368 INFO L93 Difference]: Finished difference Result 275 states and 357 transitions. [2025-02-06 05:21:16,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 05:21:16,369 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 188 [2025-02-06 05:21:16,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:21:16,372 INFO L225 Difference]: With dead ends: 275 [2025-02-06 05:21:16,372 INFO L226 Difference]: Without dead ends: 162 [2025-02-06 05:21:16,372 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-06 05:21:16,373 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 6 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 05:21:16,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1008 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 05:21:16,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2025-02-06 05:21:16,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2025-02-06 05:21:16,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 99 states have (on average 1.1616161616161615) internal successors, (115), 101 states have internal predecessors, (115), 48 states have call successors, (48), 13 states have call predecessors, (48), 14 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2025-02-06 05:21:16,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 212 transitions. [2025-02-06 05:21:16,383 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 212 transitions. Word has length 188 [2025-02-06 05:21:16,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:21:16,383 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 212 transitions. [2025-02-06 05:21:16,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2025-02-06 05:21:16,383 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 212 transitions. [2025-02-06 05:21:16,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2025-02-06 05:21:16,386 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:21:16,386 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:21:16,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 05:21:16,387 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:21:16,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:21:16,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1451894824, now seen corresponding path program 1 times [2025-02-06 05:21:16,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:21:16,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982506287] [2025-02-06 05:21:16,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:21:16,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:21:19,939 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 189 statements into 1 equivalence classes. [2025-02-06 05:21:21,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 189 of 189 statements. [2025-02-06 05:21:21,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:21:21,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:21:23,253 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2025-02-06 05:21:23,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:21:23,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982506287] [2025-02-06 05:21:23,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982506287] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:21:23,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:21:23,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 05:21:23,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176059630] [2025-02-06 05:21:23,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:21:23,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 05:21:23,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:21:23,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 05:21:23,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 05:21:23,255 INFO L87 Difference]: Start difference. First operand 162 states and 212 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2025-02-06 05:21:23,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:21:23,677 INFO L93 Difference]: Finished difference Result 276 states and 358 transitions. [2025-02-06 05:21:23,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 05:21:23,678 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 189 [2025-02-06 05:21:23,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:21:23,680 INFO L225 Difference]: With dead ends: 276 [2025-02-06 05:21:23,680 INFO L226 Difference]: Without dead ends: 163 [2025-02-06 05:21:23,681 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-06 05:21:23,683 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 6 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 05:21:23,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1008 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 05:21:23,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2025-02-06 05:21:23,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2025-02-06 05:21:23,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 100 states have (on average 1.16) internal successors, (116), 102 states have internal predecessors, (116), 48 states have call successors, (48), 13 states have call predecessors, (48), 14 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2025-02-06 05:21:23,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 213 transitions. [2025-02-06 05:21:23,698 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 213 transitions. Word has length 189 [2025-02-06 05:21:23,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:21:23,698 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 213 transitions. [2025-02-06 05:21:23,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2025-02-06 05:21:23,698 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 213 transitions. [2025-02-06 05:21:23,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2025-02-06 05:21:23,700 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:21:23,700 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:21:23,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 05:21:23,700 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:21:23,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:21:23,700 INFO L85 PathProgramCache]: Analyzing trace with hash -702988903, now seen corresponding path program 1 times [2025-02-06 05:21:23,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:21:23,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461611709] [2025-02-06 05:21:23,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:21:23,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:21:27,166 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-02-06 05:21:28,182 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-02-06 05:21:28,183 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:21:28,184 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:21:30,262 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2025-02-06 05:21:30,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:21:30,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461611709] [2025-02-06 05:21:30,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461611709] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:21:30,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365294464] [2025-02-06 05:21:30,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:21:30,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:21:30,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:21:30,265 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:21:30,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 05:21:34,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-02-06 05:21:34,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-02-06 05:21:34,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:21:34,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:21:35,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 4695 conjuncts, 113 conjuncts are in the unsatisfiable core [2025-02-06 05:21:35,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:21:35,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-06 05:21:40,312 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2025-02-06 05:21:40,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2025-02-06 05:21:44,652 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2025-02-06 05:21:44,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2025-02-06 05:21:52,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-06 05:21:54,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2025-02-06 05:21:59,470 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 3 proven. 153 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2025-02-06 05:21:59,471 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 05:22:01,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365294464] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:22:01,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 05:22:01,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 26] total 33 [2025-02-06 05:22:01,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38816330] [2025-02-06 05:22:01,328 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 05:22:01,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2025-02-06 05:22:01,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:22:01,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2025-02-06 05:22:01,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1010, Unknown=0, NotChecked=0, Total=1122 [2025-02-06 05:22:01,331 INFO L87 Difference]: Start difference. First operand 163 states and 213 transitions. Second operand has 33 states, 29 states have (on average 4.206896551724138) internal successors, (122), 29 states have internal predecessors, (122), 16 states have call successors, (65), 7 states have call predecessors, (65), 9 states have return successors, (64), 16 states have call predecessors, (64), 16 states have call successors, (64) [2025-02-06 05:22:05,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 05:22:09,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]