./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 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/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e3b9005361fd0095f8dbb62f5fee3acdc88198cbc01de43b11979176397f6891 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 15:51:48,477 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 15:51:48,514 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-17 15:51:48,517 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 15:51:48,517 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 15:51:48,532 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 15:51:48,533 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 15:51:48,533 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 15:51:48,534 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 15:51:48,534 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 15:51:48,534 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 15:51:48,535 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 15:51:48,535 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 15:51:48,535 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 15:51:48,535 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 15:51:48,535 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 15:51:48,535 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 15:51:48,535 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 15:51:48,535 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 15:51:48,535 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 15:51:48,535 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 15:51:48,535 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 15:51:48,535 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 15:51:48,535 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 15:51:48,535 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 15:51:48,535 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 15:51:48,536 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 15:51:48,536 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 15:51:48,536 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 15:51:48,536 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 15:51:48,536 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 15:51:48,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:51:48,536 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 15:51:48,536 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 15:51:48,536 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 15:51:48,536 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 15:51:48,536 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 15:51:48,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 15:51:48,536 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 15:51:48,536 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 15:51:48,536 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 15:51:48,537 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 15:51:48,537 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 ! overflow) ) 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 -> e3b9005361fd0095f8dbb62f5fee3acdc88198cbc01de43b11979176397f6891 [2025-03-17 15:51:48,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 15:51:48,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 15:51:48,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 15:51:48,784 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 15:51:48,785 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 15:51:48,786 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2025-03-17 15:51:49,967 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec9b116bb/80c7e79a9cbf420ba8d0cd767f0c3382/FLAGf36951ac2 [2025-03-17 15:51:50,424 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 15:51:50,426 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2025-03-17 15:51:50,464 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec9b116bb/80c7e79a9cbf420ba8d0cd767f0c3382/FLAGf36951ac2 [2025-03-17 15:51:50,541 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec9b116bb/80c7e79a9cbf420ba8d0cd767f0c3382 [2025-03-17 15:51:50,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 15:51:50,546 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 15:51:50,547 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 15:51:50,548 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 15:51:50,551 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 15:51:50,552 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:51:50" (1/1) ... [2025-03-17 15:51:50,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c068a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:50, skipping insertion in model container [2025-03-17 15:51:50,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:51:50" (1/1) ... [2025-03-17 15:51:50,631 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 15:51:51,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:51:51,675 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 15:51:51,865 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7332] [2025-03-17 15:51:51,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:51:51,932 INFO L204 MainTranslator]: Completed translation [2025-03-17 15:51:51,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:51 WrapperNode [2025-03-17 15:51:51,933 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 15:51:51,933 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 15:51:51,933 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 15:51:51,934 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 15:51:51,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:51" (1/1) ... [2025-03-17 15:51:51,973 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:51" (1/1) ... [2025-03-17 15:51:52,019 INFO L138 Inliner]: procedures = 188, calls = 660, calls flagged for inlining = 75, calls inlined = 50, statements flattened = 1355 [2025-03-17 15:51:52,019 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 15:51:52,019 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 15:51:52,019 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 15:51:52,020 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 15:51:52,029 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:51" (1/1) ... [2025-03-17 15:51:52,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:51" (1/1) ... [2025-03-17 15:51:52,041 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:51" (1/1) ... [2025-03-17 15:51:52,123 INFO L175 MemorySlicer]: Split 204 memory accesses to 8 slices as follows [21, 2, 9, 12, 32, 8, 5, 115]. 56 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [0, 2, 9, 12, 4, 0, 0, 54]. The 38 writes are split as follows [1, 0, 0, 0, 28, 0, 0, 9]. [2025-03-17 15:51:52,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:51" (1/1) ... [2025-03-17 15:51:52,123 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:51" (1/1) ... [2025-03-17 15:51:52,185 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:51" (1/1) ... [2025-03-17 15:51:52,187 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:51" (1/1) ... [2025-03-17 15:51:52,197 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:51" (1/1) ... [2025-03-17 15:51:52,206 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:51" (1/1) ... [2025-03-17 15:51:52,219 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 15:51:52,220 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 15:51:52,220 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 15:51:52,220 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 15:51:52,221 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:51" (1/1) ... [2025-03-17 15:51:52,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:51:52,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:51:52,249 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) [2025-03-17 15:51:52,254 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 [2025-03-17 15:51:52,270 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2025-03-17 15:51:52,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2025-03-17 15:51:52,271 INFO L130 BoogieDeclarations]: Found specification of procedure uspace_ring_map [2025-03-17 15:51:52,271 INFO L138 BoogieDeclarations]: Found implementation of procedure uspace_ring_map [2025-03-17 15:51:52,271 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unmap_user_pages [2025-03-17 15:51:52,271 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unmap_user_pages [2025-03-17 15:51:52,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 15:51:52,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure hash_64 [2025-03-17 15:51:52,272 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_64 [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_release_buffers [2025-03-17 15:51:52,272 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_release_buffers [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2025-03-17 15:51:52,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2025-03-17 15:51:52,272 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_write [2025-03-17 15:51:52,272 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_write [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 15:51:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 15:51:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 15:51:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 15:51:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-17 15:51:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-17 15:51:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2025-03-17 15:51:52,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2025-03-17 15:51:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2025-03-17 15:51:52,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2025-03-17 15:51:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_open [2025-03-17 15:51:52,273 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_open [2025-03-17 15:51:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2025-03-17 15:51:52,273 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2025-03-17 15:51:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 15:51:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_to_host [2025-03-17 15:51:52,273 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_to_host [2025-03-17 15:51:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2025-03-17 15:51:52,273 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2025-03-17 15:51:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 15:51:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_idx_inc [2025-03-17 15:51:52,273 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_idx_inc [2025-03-17 15:51:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 15:51:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 15:51:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 15:51:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 15:51:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 15:51:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 15:51:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-17 15:51:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-17 15:51:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-17 15:51:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_head_event [2025-03-17 15:51:52,274 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_head_event [2025-03-17 15:51:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2025-03-17 15:51:52,274 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2025-03-17 15:51:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2025-03-17 15:51:52,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2025-03-17 15:51:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 15:51:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 15:51:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 15:51:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 15:51:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 15:51:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-17 15:51:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-17 15:51:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-17 15:51:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2025-03-17 15:51:52,274 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2025-03-17 15:51:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2025-03-17 15:51:52,274 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2025-03-17 15:51:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 15:51:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 15:51:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 15:51:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 15:51:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 15:51:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 15:51:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 15:51:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-17 15:51:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-03-17 15:51:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_exit [2025-03-17 15:51:52,276 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_exit [2025-03-17 15:51:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2025-03-17 15:51:52,276 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2025-03-17 15:51:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_destroy [2025-03-17 15:51:52,276 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_destroy [2025-03-17 15:51:52,277 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_init [2025-03-17 15:51:52,277 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_init [2025-03-17 15:51:52,277 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2025-03-17 15:51:52,277 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2025-03-17 15:51:52,277 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2025-03-17 15:51:52,277 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2025-03-17 15:51:52,277 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_poll [2025-03-17 15:51:52,277 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_poll [2025-03-17 15:51:52,277 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2025-03-17 15:51:52,277 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2025-03-17 15:51:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_lookup [2025-03-17 15:51:52,278 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_lookup [2025-03-17 15:51:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_mmap [2025-03-17 15:51:52,278 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_mmap [2025-03-17 15:51:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 15:51:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 15:51:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 15:51:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 15:51:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 15:51:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 15:51:52,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-17 15:51:52,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-17 15:51:52,279 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2025-03-17 15:51:52,279 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2025-03-17 15:51:52,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 15:51:52,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 15:51:52,617 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 15:51:52,619 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 15:51:52,720 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8347: havoc vm_insert_page_#t~nondet448#1; [2025-03-17 15:51:52,721 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8213: havoc __phys_addr_#t~nondet427#1; [2025-03-17 15:51:52,732 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7298: havoc #t~mem304; [2025-03-17 15:51:52,740 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8259: havoc blk_rq_unmap_user_#t~nondet434#1; [2025-03-17 15:51:52,778 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6474: havoc #t~bitwise81; [2025-03-17 15:51:52,804 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6379: havoc ~res~0#1.base, ~res~0#1.offset; [2025-03-17 15:51:52,824 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8323: havoc #t~nondet444; [2025-03-17 15:51:53,113 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8255: havoc blk_rq_map_user_#t~nondet433#1; [2025-03-17 15:51:53,113 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8340: havoc scsi_init_io_#t~nondet447#1; [2025-03-17 15:51:53,114 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6451: havoc blk_rq_bytes_#t~mem77#1; [2025-03-17 15:51:53,141 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7613: call ULTIMATE.dealloc(~#__key~3#1.base, ~#__key~3#1.offset);havoc ~#__key~3#1.base, ~#__key~3#1.offset; [2025-03-17 15:51:53,141 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8272: havoc get_zeroed_page_#t~nondet436#1; [2025-03-17 15:51:53,170 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8236: havoc #t~nondet431; [2025-03-17 15:51:53,178 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8333: havoc #t~ret446.base, #t~ret446.offset; [2025-03-17 15:51:53,192 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8232: havoc #t~nondet430; [2025-03-17 15:51:54,041 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8319: havoc noop_llseek_#t~nondet443#1; [2025-03-17 15:51:54,042 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7072: call ULTIMATE.dealloc(scsi_tgt_init_~#__key~2#1.base, scsi_tgt_init_~#__key~2#1.offset);havoc scsi_tgt_init_~#__key~2#1.base, scsi_tgt_init_~#__key~2#1.offset; [2025-03-17 15:51:54,042 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8278: havoc kmem_cache_create_#t~ret438#1.base, kmem_cache_create_#t~ret438#1.offset; [2025-03-17 15:51:54,042 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8197: havoc __alloc_workqueue_key_#t~ret426#1.base, __alloc_workqueue_key_#t~ret426#1.offset; [2025-03-17 15:51:54,042 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8288: havoc ldv_tgt_fops_release_1_#t~nondet439#1; [2025-03-17 15:51:54,042 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8305: havoc misc_register_#t~nondet441#1; [2025-03-17 15:51:54,042 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8301: havoc misc_deregister_#t~nondet440#1; [2025-03-17 15:51:54,047 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6769: havoc #t~mem152.base, #t~mem152.offset; [2025-03-17 15:51:54,180 INFO L? ?]: Removed 530 outVars from TransFormulas that were not future-live. [2025-03-17 15:51:54,180 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 15:51:54,207 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 15:51:54,207 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2025-03-17 15:51:54,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:51:54 BoogieIcfgContainer [2025-03-17 15:51:54,208 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 15:51:54,210 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 15:51:54,212 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 15:51:54,216 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 15:51:54,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 03:51:50" (1/3) ... [2025-03-17 15:51:54,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bc37578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:51:54, skipping insertion in model container [2025-03-17 15:51:54,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:51" (2/3) ... [2025-03-17 15:51:54,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bc37578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:51:54, skipping insertion in model container [2025-03-17 15:51:54,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:51:54" (3/3) ... [2025-03-17 15:51:54,219 INFO L128 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2025-03-17 15:51:54,231 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 15:51:54,234 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i that has 32 procedures, 407 locations, 1 initial locations, 0 loop locations, and 10 error locations. [2025-03-17 15:51:54,291 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 15:51:54,302 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;@9b936d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 15:51:54,302 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2025-03-17 15:51:54,306 INFO L276 IsEmpty]: Start isEmpty. Operand has 407 states, 282 states have (on average 1.3439716312056738) internal successors, (379), 299 states have internal predecessors, (379), 83 states have call successors, (83), 31 states have call predecessors, (83), 31 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2025-03-17 15:51:54,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-17 15:51:54,312 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:51:54,312 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:51:54,312 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:51:54,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:51:54,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1217807688, now seen corresponding path program 1 times [2025-03-17 15:51:54,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:51:54,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069154873] [2025-03-17 15:51:54,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:51:54,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:51:54,546 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 15:51:54,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 15:51:54,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:51:54,634 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:51:54,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:51:54,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:51:54,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069154873] [2025-03-17 15:51:54,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069154873] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:51:54,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:51:54,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:51:54,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215123706] [2025-03-17 15:51:54,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:51:54,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:51:54,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:51:54,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:51:54,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:51:54,839 INFO L87 Difference]: Start difference. First operand has 407 states, 282 states have (on average 1.3439716312056738) internal successors, (379), 299 states have internal predecessors, (379), 83 states have call successors, (83), 31 states have call predecessors, (83), 31 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:51:54,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:51:54,955 INFO L93 Difference]: Finished difference Result 912 states and 1235 transitions. [2025-03-17 15:51:54,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:51:54,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2025-03-17 15:51:54,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:51:54,969 INFO L225 Difference]: With dead ends: 912 [2025-03-17 15:51:54,969 INFO L226 Difference]: Without dead ends: 476 [2025-03-17 15:51:54,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:51:54,981 INFO L435 NwaCegarLoop]: 533 mSDtfsCounter, 127 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:51:54,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 1032 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:51:54,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2025-03-17 15:51:55,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 471. [2025-03-17 15:51:55,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 331 states have (on average 1.3413897280966767) internal successors, (444), 347 states have internal predecessors, (444), 92 states have call successors, (92), 38 states have call predecessors, (92), 38 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2025-03-17 15:51:55,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 626 transitions. [2025-03-17 15:51:55,049 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 626 transitions. Word has length 13 [2025-03-17 15:51:55,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:51:55,050 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 626 transitions. [2025-03-17 15:51:55,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:51:55,050 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 626 transitions. [2025-03-17 15:51:55,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-03-17 15:51:55,051 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:51:55,052 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:51:55,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 15:51:55,052 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:51:55,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:51:55,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1287479349, now seen corresponding path program 1 times [2025-03-17 15:51:55,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:51:55,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996232160] [2025-03-17 15:51:55,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:51:55,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:51:55,177 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 15:51:55,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 15:51:55,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:51:55,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:51:55,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:51:55,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:51:55,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996232160] [2025-03-17 15:51:55,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996232160] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:51:55,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:51:55,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:51:55,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359027747] [2025-03-17 15:51:55,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:51:55,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:51:55,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:51:55,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:51:55,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:51:55,357 INFO L87 Difference]: Start difference. First operand 471 states and 626 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 15:51:55,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:51:55,443 INFO L93 Difference]: Finished difference Result 1296 states and 1725 transitions. [2025-03-17 15:51:55,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:51:55,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2025-03-17 15:51:55,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:51:55,454 INFO L225 Difference]: With dead ends: 1296 [2025-03-17 15:51:55,454 INFO L226 Difference]: Without dead ends: 826 [2025-03-17 15:51:55,456 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:51:55,456 INFO L435 NwaCegarLoop]: 889 mSDtfsCounter, 500 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:51:55,456 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 1329 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:51:55,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2025-03-17 15:51:55,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 804. [2025-03-17 15:51:55,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 575 states have (on average 1.3391304347826087) internal successors, (770), 592 states have internal predecessors, (770), 154 states have call successors, (154), 65 states have call predecessors, (154), 65 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2025-03-17 15:51:55,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1077 transitions. [2025-03-17 15:51:55,534 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1077 transitions. Word has length 17 [2025-03-17 15:51:55,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:51:55,535 INFO L471 AbstractCegarLoop]: Abstraction has 804 states and 1077 transitions. [2025-03-17 15:51:55,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 15:51:55,535 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1077 transitions. [2025-03-17 15:51:55,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-03-17 15:51:55,536 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:51:55,536 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 15:51:55,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 15:51:55,537 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:51:55,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:51:55,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1143873883, now seen corresponding path program 1 times [2025-03-17 15:51:55,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:51:55,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208979327] [2025-03-17 15:51:55,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:51:55,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:51:55,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-17 15:51:55,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-17 15:51:55,656 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:51:55,658 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:51:55,862 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:51:55,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:51:55,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208979327] [2025-03-17 15:51:55,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208979327] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:51:55,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:51:55,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 15:51:55,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316052957] [2025-03-17 15:51:55,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:51:55,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:51:55,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:51:55,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:51:55,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:51:55,864 INFO L87 Difference]: Start difference. First operand 804 states and 1077 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:51:56,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:51:56,572 INFO L93 Difference]: Finished difference Result 1613 states and 2161 transitions. [2025-03-17 15:51:56,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:51:56,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2025-03-17 15:51:56,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:51:56,577 INFO L225 Difference]: With dead ends: 1613 [2025-03-17 15:51:56,578 INFO L226 Difference]: Without dead ends: 804 [2025-03-17 15:51:56,580 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:51:56,580 INFO L435 NwaCegarLoop]: 512 mSDtfsCounter, 1 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 15:51:56,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1529 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 15:51:56,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2025-03-17 15:51:56,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 804. [2025-03-17 15:51:56,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 575 states have (on average 1.3356521739130436) internal successors, (768), 592 states have internal predecessors, (768), 154 states have call successors, (154), 65 states have call predecessors, (154), 65 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2025-03-17 15:51:56,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1075 transitions. [2025-03-17 15:51:56,625 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1075 transitions. Word has length 35 [2025-03-17 15:51:56,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:51:56,626 INFO L471 AbstractCegarLoop]: Abstraction has 804 states and 1075 transitions. [2025-03-17 15:51:56,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:51:56,626 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1075 transitions. [2025-03-17 15:51:56,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-17 15:51:56,628 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:51:56,628 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 15:51:56,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 15:51:56,629 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting tgt_ring_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:51:56,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:51:56,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1951677834, now seen corresponding path program 1 times [2025-03-17 15:51:56,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:51:56,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319532339] [2025-03-17 15:51:56,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:51:56,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:51:56,721 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-17 15:51:56,757 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-17 15:51:56,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:51:56,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:51:56,865 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:51:56,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:51:56,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319532339] [2025-03-17 15:51:56,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319532339] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:51:56,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:51:56,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:51:56,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437767623] [2025-03-17 15:51:56,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:51:56,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:51:56,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:51:56,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:51:56,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:51:56,866 INFO L87 Difference]: Start difference. First operand 804 states and 1075 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 15:51:56,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:51:56,910 INFO L93 Difference]: Finished difference Result 1627 states and 2185 transitions. [2025-03-17 15:51:56,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:51:56,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 41 [2025-03-17 15:51:56,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:51:56,914 INFO L225 Difference]: With dead ends: 1627 [2025-03-17 15:51:56,914 INFO L226 Difference]: Without dead ends: 824 [2025-03-17 15:51:56,917 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:51:56,917 INFO L435 NwaCegarLoop]: 511 mSDtfsCounter, 4 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:51:56,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1016 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:51:56,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2025-03-17 15:51:56,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 816. [2025-03-17 15:51:56,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 587 states have (on average 1.332197614991482) internal successors, (782), 604 states have internal predecessors, (782), 154 states have call successors, (154), 65 states have call predecessors, (154), 65 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2025-03-17 15:51:56,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1089 transitions. [2025-03-17 15:51:56,945 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1089 transitions. Word has length 41 [2025-03-17 15:51:56,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:51:56,945 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 1089 transitions. [2025-03-17 15:51:56,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 15:51:56,945 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1089 transitions. [2025-03-17 15:51:56,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-03-17 15:51:56,946 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:51:56,946 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 15:51:56,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 15:51:56,946 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting tgt_ring_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:51:56,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:51:56,946 INFO L85 PathProgramCache]: Analyzing trace with hash -794621044, now seen corresponding path program 1 times [2025-03-17 15:51:56,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:51:56,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844305412] [2025-03-17 15:51:56,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:51:56,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:51:57,046 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-17 15:51:57,071 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-17 15:51:57,072 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:51:57,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:51:57,200 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:51:57,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:51:57,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844305412] [2025-03-17 15:51:57,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844305412] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:51:57,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832664593] [2025-03-17 15:51:57,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:51:57,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:51:57,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:51:57,204 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) [2025-03-17 15:51:57,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 15:51:57,491 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-17 15:51:57,629 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-17 15:51:57,630 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:51:57,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:51:57,641 INFO L256 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:51:57,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:51:57,722 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:51:57,723 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:51:57,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832664593] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:51:57,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:51:57,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-17 15:51:57,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704745891] [2025-03-17 15:51:57,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:51:57,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:51:57,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:51:57,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:51:57,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:51:57,724 INFO L87 Difference]: Start difference. First operand 816 states and 1089 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 15:51:57,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:51:57,770 INFO L93 Difference]: Finished difference Result 828 states and 1107 transitions. [2025-03-17 15:51:57,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:51:57,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 47 [2025-03-17 15:51:57,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:51:57,777 INFO L225 Difference]: With dead ends: 828 [2025-03-17 15:51:57,777 INFO L226 Difference]: Without dead ends: 827 [2025-03-17 15:51:57,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:51:57,778 INFO L435 NwaCegarLoop]: 517 mSDtfsCounter, 7 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:51:57,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1025 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:51:57,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2025-03-17 15:51:57,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 815. [2025-03-17 15:51:57,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 587 states have (on average 1.3287904599659284) internal successors, (780), 603 states have internal predecessors, (780), 154 states have call successors, (154), 65 states have call predecessors, (154), 65 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2025-03-17 15:51:57,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1087 transitions. [2025-03-17 15:51:57,804 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1087 transitions. Word has length 47 [2025-03-17 15:51:57,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:51:57,805 INFO L471 AbstractCegarLoop]: Abstraction has 815 states and 1087 transitions. [2025-03-17 15:51:57,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 15:51:57,805 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1087 transitions. [2025-03-17 15:51:57,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-17 15:51:57,806 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:51:57,806 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 15:51:57,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 15:51:58,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:51:58,010 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:51:58,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:51:58,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1195495113, now seen corresponding path program 1 times [2025-03-17 15:51:58,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:51:58,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904564038] [2025-03-17 15:51:58,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:51:58,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:51:58,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-17 15:51:58,117 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 15:51:58,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:51:58,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:51:58,220 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-17 15:51:58,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:51:58,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904564038] [2025-03-17 15:51:58,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904564038] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:51:58,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:51:58,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:51:58,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975641607] [2025-03-17 15:51:58,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:51:58,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:51:58,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:51:58,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:51:58,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:51:58,222 INFO L87 Difference]: Start difference. First operand 815 states and 1087 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 15:51:58,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:51:58,262 INFO L93 Difference]: Finished difference Result 1641 states and 2198 transitions. [2025-03-17 15:51:58,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:51:58,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 48 [2025-03-17 15:51:58,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:51:58,267 INFO L225 Difference]: With dead ends: 1641 [2025-03-17 15:51:58,268 INFO L226 Difference]: Without dead ends: 827 [2025-03-17 15:51:58,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:51:58,271 INFO L435 NwaCegarLoop]: 508 mSDtfsCounter, 1 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:51:58,272 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1012 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:51:58,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2025-03-17 15:51:58,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 827. [2025-03-17 15:51:58,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 599 states have (on average 1.32220367278798) internal successors, (792), 615 states have internal predecessors, (792), 154 states have call successors, (154), 65 states have call predecessors, (154), 65 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2025-03-17 15:51:58,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1099 transitions. [2025-03-17 15:51:58,300 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1099 transitions. Word has length 48 [2025-03-17 15:51:58,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:51:58,301 INFO L471 AbstractCegarLoop]: Abstraction has 827 states and 1099 transitions. [2025-03-17 15:51:58,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 15:51:58,302 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1099 transitions. [2025-03-17 15:51:58,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-17 15:51:58,304 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:51:58,304 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 15:51:58,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 15:51:58,304 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting tgt_ring_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:51:58,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:51:58,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1136551715, now seen corresponding path program 1 times [2025-03-17 15:51:58,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:51:58,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736682950] [2025-03-17 15:51:58,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:51:58,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:51:58,385 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-17 15:51:58,401 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 15:51:58,402 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:51:58,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:51:58,520 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:51:58,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:51:58,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736682950] [2025-03-17 15:51:58,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736682950] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:51:58,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465208867] [2025-03-17 15:51:58,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:51:58,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:51:58,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:51:58,523 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) [2025-03-17 15:51:58,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 15:51:58,818 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-17 15:51:58,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 15:51:58,913 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:51:58,913 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:51:58,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 1009 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:51:58,919 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:51:58,940 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:51:58,940 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:51:58,984 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:51:58,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465208867] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:51:58,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:51:58,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-17 15:51:58,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565055175] [2025-03-17 15:51:58,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:51:58,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:51:58,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:51:58,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:51:58,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:51:58,986 INFO L87 Difference]: Start difference. First operand 827 states and 1099 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 15:51:59,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:51:59,041 INFO L93 Difference]: Finished difference Result 861 states and 1151 transitions. [2025-03-17 15:51:59,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:51:59,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 48 [2025-03-17 15:51:59,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:51:59,069 INFO L225 Difference]: With dead ends: 861 [2025-03-17 15:51:59,069 INFO L226 Difference]: Without dead ends: 860 [2025-03-17 15:51:59,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:51:59,074 INFO L435 NwaCegarLoop]: 508 mSDtfsCounter, 12 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:51:59,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2023 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:51:59,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2025-03-17 15:51:59,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 816. [2025-03-17 15:51:59,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 589 states have (on average 1.3208828522920204) internal successors, (778), 604 states have internal predecessors, (778), 154 states have call successors, (154), 65 states have call predecessors, (154), 65 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2025-03-17 15:51:59,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1085 transitions. [2025-03-17 15:51:59,109 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1085 transitions. Word has length 48 [2025-03-17 15:51:59,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:51:59,109 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 1085 transitions. [2025-03-17 15:51:59,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 15:51:59,110 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1085 transitions. [2025-03-17 15:51:59,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-03-17 15:51:59,112 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:51:59,113 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 15:51:59,132 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 15:51:59,313 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,SelfDestructingSolverStorable6 [2025-03-17 15:51:59,314 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:51:59,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:51:59,314 INFO L85 PathProgramCache]: Analyzing trace with hash 550341893, now seen corresponding path program 1 times [2025-03-17 15:51:59,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:51:59,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174131446] [2025-03-17 15:51:59,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:51:59,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:51:59,393 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-17 15:51:59,407 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-17 15:51:59,407 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:51:59,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:51:59,497 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-17 15:51:59,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:51:59,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174131446] [2025-03-17 15:51:59,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174131446] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:51:59,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337101650] [2025-03-17 15:51:59,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:51:59,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:51:59,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:51:59,500 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) [2025-03-17 15:51:59,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 15:51:59,784 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-17 15:51:59,871 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-17 15:51:59,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:51:59,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:51:59,875 INFO L256 TraceCheckSpWp]: Trace formula consists of 965 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:51:59,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:51:59,901 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-17 15:51:59,901 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:51:59,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337101650] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:51:59,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:51:59,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2025-03-17 15:51:59,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727892271] [2025-03-17 15:51:59,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:51:59,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:51:59,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:51:59,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:51:59,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:51:59,902 INFO L87 Difference]: Start difference. First operand 816 states and 1085 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-17 15:52:00,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:52:00,634 INFO L93 Difference]: Finished difference Result 1641 states and 2183 transitions. [2025-03-17 15:52:00,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:52:00,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 52 [2025-03-17 15:52:00,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:52:00,639 INFO L225 Difference]: With dead ends: 1641 [2025-03-17 15:52:00,639 INFO L226 Difference]: Without dead ends: 816 [2025-03-17 15:52:00,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:52:00,642 INFO L435 NwaCegarLoop]: 508 mSDtfsCounter, 1 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2022 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 15:52:00,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2022 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 15:52:00,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2025-03-17 15:52:00,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 816. [2025-03-17 15:52:00,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 589 states have (on average 1.3174872665534805) internal successors, (776), 602 states have internal predecessors, (776), 154 states have call successors, (154), 65 states have call predecessors, (154), 65 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2025-03-17 15:52:00,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1083 transitions. [2025-03-17 15:52:00,671 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1083 transitions. Word has length 52 [2025-03-17 15:52:00,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:52:00,672 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 1083 transitions. [2025-03-17 15:52:00,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-17 15:52:00,672 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1083 transitions. [2025-03-17 15:52:00,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-17 15:52:00,673 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:52:00,673 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 15:52:00,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 15:52:00,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:52:00,874 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:52:00,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:52:00,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1669173386, now seen corresponding path program 1 times [2025-03-17 15:52:00,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:52:00,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228134979] [2025-03-17 15:52:00,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:00,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:52:00,994 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-17 15:52:01,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-17 15:52:01,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:01,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:01,123 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-17 15:52:01,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:52:01,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228134979] [2025-03-17 15:52:01,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228134979] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:52:01,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066763115] [2025-03-17 15:52:01,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:01,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:52:01,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:52:01,125 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) [2025-03-17 15:52:01,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 15:52:01,455 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-17 15:52:01,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-17 15:52:01,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:01,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:01,578 INFO L256 TraceCheckSpWp]: Trace formula consists of 1088 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:52:01,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:52:01,626 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-17 15:52:01,627 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:52:01,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066763115] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:52:01,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:52:01,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3] total 9 [2025-03-17 15:52:01,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936951899] [2025-03-17 15:52:01,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:52:01,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:52:01,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:52:01,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:52:01,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:52:01,628 INFO L87 Difference]: Start difference. First operand 816 states and 1083 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-17 15:52:01,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:52:01,711 INFO L93 Difference]: Finished difference Result 1649 states and 2193 transitions. [2025-03-17 15:52:01,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:52:01,712 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 74 [2025-03-17 15:52:01,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:52:01,717 INFO L225 Difference]: With dead ends: 1649 [2025-03-17 15:52:01,717 INFO L226 Difference]: Without dead ends: 834 [2025-03-17 15:52:01,720 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:52:01,721 INFO L435 NwaCegarLoop]: 512 mSDtfsCounter, 1 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3043 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:52:01,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3043 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:52:01,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2025-03-17 15:52:01,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 828. [2025-03-17 15:52:01,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 599 states have (on average 1.312186978297162) internal successors, (786), 612 states have internal predecessors, (786), 154 states have call successors, (154), 65 states have call predecessors, (154), 67 states have return successors, (157), 155 states have call predecessors, (157), 153 states have call successors, (157) [2025-03-17 15:52:01,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1097 transitions. [2025-03-17 15:52:01,745 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1097 transitions. Word has length 74 [2025-03-17 15:52:01,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:52:01,746 INFO L471 AbstractCegarLoop]: Abstraction has 828 states and 1097 transitions. [2025-03-17 15:52:01,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-17 15:52:01,746 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1097 transitions. [2025-03-17 15:52:01,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-03-17 15:52:01,746 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:52:01,747 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 15:52:01,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 15:52:01,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:52:01,947 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:52:01,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:52:01,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1774669894, now seen corresponding path program 1 times [2025-03-17 15:52:01,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:52:01,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335099930] [2025-03-17 15:52:01,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:01,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:52:02,030 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-03-17 15:52:02,042 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-03-17 15:52:02,042 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:02,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:02,141 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-17 15:52:02,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:52:02,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335099930] [2025-03-17 15:52:02,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335099930] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:52:02,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:52:02,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 15:52:02,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217081520] [2025-03-17 15:52:02,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:52:02,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:52:02,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:52:02,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:52:02,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:52:02,143 INFO L87 Difference]: Start difference. First operand 828 states and 1097 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-17 15:52:02,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:52:02,194 INFO L93 Difference]: Finished difference Result 1655 states and 2193 transitions. [2025-03-17 15:52:02,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:52:02,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 73 [2025-03-17 15:52:02,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:52:02,199 INFO L225 Difference]: With dead ends: 1655 [2025-03-17 15:52:02,200 INFO L226 Difference]: Without dead ends: 828 [2025-03-17 15:52:02,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:52:02,204 INFO L435 NwaCegarLoop]: 509 mSDtfsCounter, 0 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2022 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:52:02,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2022 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:52:02,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2025-03-17 15:52:02,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 828. [2025-03-17 15:52:02,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 599 states have (on average 1.308848080133556) internal successors, (784), 612 states have internal predecessors, (784), 154 states have call successors, (154), 65 states have call predecessors, (154), 67 states have return successors, (157), 155 states have call predecessors, (157), 153 states have call successors, (157) [2025-03-17 15:52:02,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1095 transitions. [2025-03-17 15:52:02,253 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1095 transitions. Word has length 73 [2025-03-17 15:52:02,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:52:02,253 INFO L471 AbstractCegarLoop]: Abstraction has 828 states and 1095 transitions. [2025-03-17 15:52:02,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-17 15:52:02,254 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1095 transitions. [2025-03-17 15:52:02,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-03-17 15:52:02,254 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:52:02,254 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 15:52:02,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 15:52:02,255 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:52:02,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:52:02,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1695556477, now seen corresponding path program 1 times [2025-03-17 15:52:02,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:52:02,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69376457] [2025-03-17 15:52:02,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:02,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:52:02,334 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-03-17 15:52:02,351 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-03-17 15:52:02,351 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:02,351 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:02,450 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-03-17 15:52:02,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:52:02,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69376457] [2025-03-17 15:52:02,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69376457] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:52:02,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781445091] [2025-03-17 15:52:02,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:02,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:52:02,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:52:02,452 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) [2025-03-17 15:52:02,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 15:52:02,856 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-03-17 15:52:02,985 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-03-17 15:52:02,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:02,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:02,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 1153 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:52:02,993 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:52:03,008 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-03-17 15:52:03,009 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:52:03,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781445091] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:52:03,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:52:03,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-17 15:52:03,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204369247] [2025-03-17 15:52:03,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:52:03,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:52:03,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:52:03,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:52:03,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:52:03,010 INFO L87 Difference]: Start difference. First operand 828 states and 1095 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-17 15:52:03,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:52:03,040 INFO L93 Difference]: Finished difference Result 828 states and 1095 transitions. [2025-03-17 15:52:03,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:52:03,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 82 [2025-03-17 15:52:03,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:52:03,045 INFO L225 Difference]: With dead ends: 828 [2025-03-17 15:52:03,045 INFO L226 Difference]: Without dead ends: 827 [2025-03-17 15:52:03,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:52:03,046 INFO L435 NwaCegarLoop]: 503 mSDtfsCounter, 1 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:52:03,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1507 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:52:03,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2025-03-17 15:52:03,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 827. [2025-03-17 15:52:03,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 599 states have (on average 1.3038397328881468) internal successors, (781), 611 states have internal predecessors, (781), 154 states have call successors, (154), 65 states have call predecessors, (154), 67 states have return successors, (157), 155 states have call predecessors, (157), 153 states have call successors, (157) [2025-03-17 15:52:03,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1092 transitions. [2025-03-17 15:52:03,068 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1092 transitions. Word has length 82 [2025-03-17 15:52:03,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:52:03,068 INFO L471 AbstractCegarLoop]: Abstraction has 827 states and 1092 transitions. [2025-03-17 15:52:03,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-17 15:52:03,069 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1092 transitions. [2025-03-17 15:52:03,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-03-17 15:52:03,069 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:52:03,069 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 15:52:03,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 15:52:03,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-03-17 15:52:03,274 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:52:03,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:52:03,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1022643274, now seen corresponding path program 1 times [2025-03-17 15:52:03,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:52:03,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437605906] [2025-03-17 15:52:03,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:03,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:52:03,358 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-17 15:52:03,374 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-17 15:52:03,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:03,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:03,481 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-03-17 15:52:03,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:52:03,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437605906] [2025-03-17 15:52:03,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437605906] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:52:03,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413714910] [2025-03-17 15:52:03,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:03,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:52:03,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:52:03,483 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:52:03,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 15:52:03,826 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-17 15:52:03,952 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-17 15:52:03,952 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:03,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:03,956 INFO L256 TraceCheckSpWp]: Trace formula consists of 1154 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:52:03,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:52:03,981 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-03-17 15:52:03,981 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:52:04,055 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-03-17 15:52:04,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413714910] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:52:04,055 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:52:04,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-17 15:52:04,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741929315] [2025-03-17 15:52:04,055 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:52:04,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:52:04,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:52:04,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:52:04,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:52:04,056 INFO L87 Difference]: Start difference. First operand 827 states and 1092 transitions. Second operand has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-17 15:52:04,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:52:04,093 INFO L93 Difference]: Finished difference Result 842 states and 1116 transitions. [2025-03-17 15:52:04,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:52:04,094 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 83 [2025-03-17 15:52:04,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:52:04,098 INFO L225 Difference]: With dead ends: 842 [2025-03-17 15:52:04,098 INFO L226 Difference]: Without dead ends: 818 [2025-03-17 15:52:04,099 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:52:04,099 INFO L435 NwaCegarLoop]: 503 mSDtfsCounter, 0 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2009 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:52:04,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2009 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:52:04,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2025-03-17 15:52:04,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 802. [2025-03-17 15:52:04,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 580 states have (on average 1.303448275862069) internal successors, (756), 590 states have internal predecessors, (756), 151 states have call successors, (151), 63 states have call predecessors, (151), 65 states have return successors, (155), 153 states have call predecessors, (155), 151 states have call successors, (155) [2025-03-17 15:52:04,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1062 transitions. [2025-03-17 15:52:04,120 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1062 transitions. Word has length 83 [2025-03-17 15:52:04,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:52:04,121 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 1062 transitions. [2025-03-17 15:52:04,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-17 15:52:04,121 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1062 transitions. [2025-03-17 15:52:04,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-03-17 15:52:04,122 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:52:04,122 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 15:52:04,131 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 15:52:04,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:52:04,323 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:52:04,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:52:04,323 INFO L85 PathProgramCache]: Analyzing trace with hash -879491090, now seen corresponding path program 1 times [2025-03-17 15:52:04,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:52:04,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298313206] [2025-03-17 15:52:04,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:04,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:52:04,405 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-17 15:52:04,419 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-17 15:52:04,419 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:04,419 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:04,535 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-03-17 15:52:04,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:52:04,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298313206] [2025-03-17 15:52:04,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298313206] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:52:04,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:52:04,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:52:04,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795751212] [2025-03-17 15:52:04,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:52:04,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:52:04,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:52:04,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:52:04,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:52:04,536 INFO L87 Difference]: Start difference. First operand 802 states and 1062 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-17 15:52:05,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:52:05,244 INFO L93 Difference]: Finished difference Result 2257 states and 2991 transitions. [2025-03-17 15:52:05,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:52:05,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 92 [2025-03-17 15:52:05,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:52:05,252 INFO L225 Difference]: With dead ends: 2257 [2025-03-17 15:52:05,252 INFO L226 Difference]: Without dead ends: 1456 [2025-03-17 15:52:05,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:52:05,256 INFO L435 NwaCegarLoop]: 597 mSDtfsCounter, 457 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 15:52:05,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 1049 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 15:52:05,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2025-03-17 15:52:05,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1453. [2025-03-17 15:52:05,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 1049 states have (on average 1.2859866539561486) internal successors, (1349), 1063 states have internal predecessors, (1349), 277 states have call successors, (277), 118 states have call predecessors, (277), 121 states have return successors, (283), 280 states have call predecessors, (283), 277 states have call successors, (283) [2025-03-17 15:52:05,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 1909 transitions. [2025-03-17 15:52:05,298 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 1909 transitions. Word has length 92 [2025-03-17 15:52:05,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:52:05,299 INFO L471 AbstractCegarLoop]: Abstraction has 1453 states and 1909 transitions. [2025-03-17 15:52:05,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-17 15:52:05,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 1909 transitions. [2025-03-17 15:52:05,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-03-17 15:52:05,300 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:52:05,300 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 15:52:05,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-17 15:52:05,300 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:52:05,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:52:05,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1348579604, now seen corresponding path program 1 times [2025-03-17 15:52:05,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:52:05,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419394475] [2025-03-17 15:52:05,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:05,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:52:05,382 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-03-17 15:52:05,395 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-03-17 15:52:05,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:05,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:05,519 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-17 15:52:05,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:52:05,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419394475] [2025-03-17 15:52:05,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419394475] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:52:05,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:52:05,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:52:05,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006681017] [2025-03-17 15:52:05,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:52:05,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:52:05,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:52:05,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:52:05,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:52:05,521 INFO L87 Difference]: Start difference. First operand 1453 states and 1909 transitions. Second operand has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 15:52:05,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:52:05,576 INFO L93 Difference]: Finished difference Result 2232 states and 2920 transitions. [2025-03-17 15:52:05,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:52:05,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 96 [2025-03-17 15:52:05,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:52:05,588 INFO L225 Difference]: With dead ends: 2232 [2025-03-17 15:52:05,589 INFO L226 Difference]: Without dead ends: 2230 [2025-03-17 15:52:05,590 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:52:05,591 INFO L435 NwaCegarLoop]: 508 mSDtfsCounter, 436 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:52:05,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 999 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:52:05,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2025-03-17 15:52:05,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 2228. [2025-03-17 15:52:05,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2228 states, 1614 states have (on average 1.2775712515489468) internal successors, (2062), 1633 states have internal predecessors, (2062), 422 states have call successors, (422), 181 states have call predecessors, (422), 186 states have return successors, (432), 427 states have call predecessors, (432), 422 states have call successors, (432) [2025-03-17 15:52:05,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 2916 transitions. [2025-03-17 15:52:05,659 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 2916 transitions. Word has length 96 [2025-03-17 15:52:05,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:52:05,659 INFO L471 AbstractCegarLoop]: Abstraction has 2228 states and 2916 transitions. [2025-03-17 15:52:05,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 15:52:05,660 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 2916 transitions. [2025-03-17 15:52:05,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-03-17 15:52:05,662 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:52:05,662 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 15:52:05,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-17 15:52:05,663 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:52:05,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:52:05,663 INFO L85 PathProgramCache]: Analyzing trace with hash 964333903, now seen corresponding path program 1 times [2025-03-17 15:52:05,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:52:05,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137368248] [2025-03-17 15:52:05,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:05,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:52:05,775 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-03-17 15:52:05,796 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-03-17 15:52:05,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:05,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:05,879 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-17 15:52:05,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:52:05,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137368248] [2025-03-17 15:52:05,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137368248] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:52:05,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:52:05,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:52:05,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304080277] [2025-03-17 15:52:05,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:52:05,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:52:05,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:52:05,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:52:05,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:52:05,880 INFO L87 Difference]: Start difference. First operand 2228 states and 2916 transitions. Second operand has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-17 15:52:05,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:52:05,941 INFO L93 Difference]: Finished difference Result 4410 states and 5822 transitions. [2025-03-17 15:52:05,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:52:05,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 97 [2025-03-17 15:52:05,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:52:05,954 INFO L225 Difference]: With dead ends: 4410 [2025-03-17 15:52:05,954 INFO L226 Difference]: Without dead ends: 2282 [2025-03-17 15:52:05,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:52:05,961 INFO L435 NwaCegarLoop]: 497 mSDtfsCounter, 3 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:52:05,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 990 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:52:05,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2025-03-17 15:52:06,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2270. [2025-03-17 15:52:06,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2270 states, 1656 states have (on average 1.2741545893719808) internal successors, (2110), 1675 states have internal predecessors, (2110), 422 states have call successors, (422), 181 states have call predecessors, (422), 186 states have return successors, (432), 427 states have call predecessors, (432), 422 states have call successors, (432) [2025-03-17 15:52:06,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2270 states to 2270 states and 2964 transitions. [2025-03-17 15:52:06,076 INFO L78 Accepts]: Start accepts. Automaton has 2270 states and 2964 transitions. Word has length 97 [2025-03-17 15:52:06,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:52:06,077 INFO L471 AbstractCegarLoop]: Abstraction has 2270 states and 2964 transitions. [2025-03-17 15:52:06,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-17 15:52:06,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states and 2964 transitions. [2025-03-17 15:52:06,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-17 15:52:06,079 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:52:06,079 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2025-03-17 15:52:06,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-17 15:52:06,079 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:52:06,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:52:06,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1862878810, now seen corresponding path program 1 times [2025-03-17 15:52:06,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:52:06,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706653021] [2025-03-17 15:52:06,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:06,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:52:06,221 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-17 15:52:06,236 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-17 15:52:06,236 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:06,236 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:06,371 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-17 15:52:06,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:52:06,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706653021] [2025-03-17 15:52:06,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706653021] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:52:06,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149333595] [2025-03-17 15:52:06,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:06,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:52:06,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:52:06,374 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:52:06,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 15:52:06,767 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-17 15:52:06,885 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-17 15:52:06,885 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:06,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:06,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 1346 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:52:06,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:52:06,925 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-03-17 15:52:06,925 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:52:06,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149333595] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:52:06,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:52:06,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2025-03-17 15:52:06,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661456002] [2025-03-17 15:52:06,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:52:06,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:52:06,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:52:06,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:52:06,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:52:06,926 INFO L87 Difference]: Start difference. First operand 2270 states and 2964 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-17 15:52:07,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:52:07,023 INFO L93 Difference]: Finished difference Result 4460 states and 5834 transitions. [2025-03-17 15:52:07,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:52:07,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 104 [2025-03-17 15:52:07,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:52:07,036 INFO L225 Difference]: With dead ends: 4460 [2025-03-17 15:52:07,036 INFO L226 Difference]: Without dead ends: 2290 [2025-03-17 15:52:07,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:52:07,043 INFO L435 NwaCegarLoop]: 500 mSDtfsCounter, 1 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:52:07,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1986 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:52:07,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2025-03-17 15:52:07,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 2280. [2025-03-17 15:52:07,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2280 states, 1666 states have (on average 1.2725090036014406) internal successors, (2120), 1680 states have internal predecessors, (2120), 422 states have call successors, (422), 181 states have call predecessors, (422), 186 states have return successors, (432), 432 states have call predecessors, (432), 422 states have call successors, (432) [2025-03-17 15:52:07,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2280 states to 2280 states and 2974 transitions. [2025-03-17 15:52:07,116 INFO L78 Accepts]: Start accepts. Automaton has 2280 states and 2974 transitions. Word has length 104 [2025-03-17 15:52:07,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:52:07,116 INFO L471 AbstractCegarLoop]: Abstraction has 2280 states and 2974 transitions. [2025-03-17 15:52:07,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-17 15:52:07,117 INFO L276 IsEmpty]: Start isEmpty. Operand 2280 states and 2974 transitions. [2025-03-17 15:52:07,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-03-17 15:52:07,118 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:52:07,118 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-17 15:52:07,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-17 15:52:07,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:52:07,319 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:52:07,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:52:07,319 INFO L85 PathProgramCache]: Analyzing trace with hash -78182912, now seen corresponding path program 1 times [2025-03-17 15:52:07,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:52:07,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58796421] [2025-03-17 15:52:07,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:07,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:52:07,480 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-17 15:52:07,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-17 15:52:07,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:07,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:07,665 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-17 15:52:07,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:52:07,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58796421] [2025-03-17 15:52:07,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58796421] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:52:07,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230304698] [2025-03-17 15:52:07,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:07,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:52:07,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:52:07,669 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:52:07,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 15:52:08,116 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-17 15:52:08,231 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-17 15:52:08,231 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:08,231 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:08,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 1333 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:52:08,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:52:08,267 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-17 15:52:08,267 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:52:08,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230304698] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:52:08,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:52:08,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-17 15:52:08,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039731195] [2025-03-17 15:52:08,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:52:08,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:52:08,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:52:08,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:52:08,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:52:08,268 INFO L87 Difference]: Start difference. First operand 2280 states and 2974 transitions. Second operand has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-17 15:52:08,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:52:08,316 INFO L93 Difference]: Finished difference Result 2304 states and 3010 transitions. [2025-03-17 15:52:08,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:52:08,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 103 [2025-03-17 15:52:08,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:52:08,327 INFO L225 Difference]: With dead ends: 2304 [2025-03-17 15:52:08,327 INFO L226 Difference]: Without dead ends: 2303 [2025-03-17 15:52:08,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:52:08,329 INFO L435 NwaCegarLoop]: 501 mSDtfsCounter, 5 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:52:08,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 997 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:52:08,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2303 states. [2025-03-17 15:52:08,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2303 to 2279. [2025-03-17 15:52:08,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 1666 states have (on average 1.26890756302521) internal successors, (2114), 1679 states have internal predecessors, (2114), 422 states have call successors, (422), 181 states have call predecessors, (422), 186 states have return successors, (432), 432 states have call predecessors, (432), 422 states have call successors, (432) [2025-03-17 15:52:08,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 2968 transitions. [2025-03-17 15:52:08,405 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 2968 transitions. Word has length 103 [2025-03-17 15:52:08,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:52:08,405 INFO L471 AbstractCegarLoop]: Abstraction has 2279 states and 2968 transitions. [2025-03-17 15:52:08,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-17 15:52:08,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 2968 transitions. [2025-03-17 15:52:08,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-17 15:52:08,406 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:52:08,407 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-17 15:52:08,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-17 15:52:08,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-17 15:52:08,613 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:52:08,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:52:08,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1871297005, now seen corresponding path program 1 times [2025-03-17 15:52:08,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:52:08,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601295133] [2025-03-17 15:52:08,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:08,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:52:08,721 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-17 15:52:08,736 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-17 15:52:08,736 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:08,736 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:08,825 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-17 15:52:08,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:52:08,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601295133] [2025-03-17 15:52:08,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601295133] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:52:08,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063645916] [2025-03-17 15:52:08,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:08,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:52:08,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:52:08,828 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:52:08,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-17 15:52:09,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-17 15:52:09,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-17 15:52:09,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:09,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:09,457 INFO L256 TraceCheckSpWp]: Trace formula consists of 1334 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:52:09,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:52:09,485 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-17 15:52:09,486 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:52:09,552 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-17 15:52:09,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063645916] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:52:09,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:52:09,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-17 15:52:09,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018292293] [2025-03-17 15:52:09,554 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:52:09,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:52:09,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:52:09,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:52:09,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:52:09,555 INFO L87 Difference]: Start difference. First operand 2279 states and 2968 transitions. Second operand has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-17 15:52:09,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:52:09,614 INFO L93 Difference]: Finished difference Result 2363 states and 3094 transitions. [2025-03-17 15:52:09,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:52:09,615 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 104 [2025-03-17 15:52:09,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:52:09,627 INFO L225 Difference]: With dead ends: 2363 [2025-03-17 15:52:09,627 INFO L226 Difference]: Without dead ends: 2362 [2025-03-17 15:52:09,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:52:09,629 INFO L435 NwaCegarLoop]: 494 mSDtfsCounter, 8 mSDsluCounter, 1482 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1976 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:52:09,629 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1976 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:52:09,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2025-03-17 15:52:09,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2242. [2025-03-17 15:52:09,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2242 states, 1630 states have (on average 1.2674846625766871) internal successors, (2066), 1642 states have internal predecessors, (2066), 422 states have call successors, (422), 181 states have call predecessors, (422), 186 states have return successors, (432), 432 states have call predecessors, (432), 422 states have call successors, (432) [2025-03-17 15:52:09,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2242 states to 2242 states and 2920 transitions. [2025-03-17 15:52:09,719 INFO L78 Accepts]: Start accepts. Automaton has 2242 states and 2920 transitions. Word has length 104 [2025-03-17 15:52:09,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:52:09,719 INFO L471 AbstractCegarLoop]: Abstraction has 2242 states and 2920 transitions. [2025-03-17 15:52:09,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-17 15:52:09,720 INFO L276 IsEmpty]: Start isEmpty. Operand 2242 states and 2920 transitions. [2025-03-17 15:52:09,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-17 15:52:09,726 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:52:09,726 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-17 15:52:09,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-17 15:52:09,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-17 15:52:09,927 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:52:09,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:52:09,928 INFO L85 PathProgramCache]: Analyzing trace with hash 621709553, now seen corresponding path program 1 times [2025-03-17 15:52:09,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:52:09,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26541734] [2025-03-17 15:52:09,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:09,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:52:10,025 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-17 15:52:10,039 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-17 15:52:10,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:10,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:10,167 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-17 15:52:10,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:52:10,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26541734] [2025-03-17 15:52:10,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26541734] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:52:10,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816938682] [2025-03-17 15:52:10,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:10,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:52:10,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:52:10,169 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:52:10,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-17 15:52:10,617 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-17 15:52:10,727 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-17 15:52:10,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:10,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:10,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 1285 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:52:10,735 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:52:10,854 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-17 15:52:10,854 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:52:10,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816938682] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:52:10,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:52:10,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2025-03-17 15:52:10,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7730659] [2025-03-17 15:52:10,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:52:10,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:52:10,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:52:10,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:52:10,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:52:10,856 INFO L87 Difference]: Start difference. First operand 2242 states and 2920 transitions. Second operand has 4 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-17 15:52:11,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:52:11,685 INFO L93 Difference]: Finished difference Result 2922 states and 3808 transitions. [2025-03-17 15:52:11,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:52:11,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 109 [2025-03-17 15:52:11,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:52:11,700 INFO L225 Difference]: With dead ends: 2922 [2025-03-17 15:52:11,700 INFO L226 Difference]: Without dead ends: 2920 [2025-03-17 15:52:11,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:52:11,704 INFO L435 NwaCegarLoop]: 949 mSDtfsCounter, 912 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 1272 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-17 15:52:11,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 1272 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-17 15:52:11,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2025-03-17 15:52:11,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 2240. [2025-03-17 15:52:11,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2240 states, 1630 states have (on average 1.2650306748466258) internal successors, (2062), 1640 states have internal predecessors, (2062), 422 states have call successors, (422), 181 states have call predecessors, (422), 186 states have return successors, (432), 432 states have call predecessors, (432), 422 states have call successors, (432) [2025-03-17 15:52:11,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2240 states to 2240 states and 2916 transitions. [2025-03-17 15:52:11,786 INFO L78 Accepts]: Start accepts. Automaton has 2240 states and 2916 transitions. Word has length 109 [2025-03-17 15:52:11,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:52:11,787 INFO L471 AbstractCegarLoop]: Abstraction has 2240 states and 2916 transitions. [2025-03-17 15:52:11,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-17 15:52:11,788 INFO L276 IsEmpty]: Start isEmpty. Operand 2240 states and 2916 transitions. [2025-03-17 15:52:11,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-17 15:52:11,791 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:52:11,791 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-17 15:52:11,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-17 15:52:11,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:52:11,993 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:52:11,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:52:11,993 INFO L85 PathProgramCache]: Analyzing trace with hash 2093127478, now seen corresponding path program 1 times [2025-03-17 15:52:11,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:52:11,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169237595] [2025-03-17 15:52:11,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:11,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:52:12,100 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-17 15:52:12,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-17 15:52:12,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:12,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:12,206 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-17 15:52:12,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:52:12,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169237595] [2025-03-17 15:52:12,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169237595] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:52:12,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352335332] [2025-03-17 15:52:12,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:12,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:52:12,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:52:12,209 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:52:12,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-17 15:52:12,677 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-17 15:52:12,786 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-17 15:52:12,786 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:12,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:12,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 1286 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:52:12,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:52:12,906 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-17 15:52:12,906 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:52:13,021 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-17 15:52:13,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352335332] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:52:13,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:52:13,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 2, 3] total 6 [2025-03-17 15:52:13,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841016794] [2025-03-17 15:52:13,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:52:13,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:52:13,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:52:13,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:52:13,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:52:13,023 INFO L87 Difference]: Start difference. First operand 2240 states and 2916 transitions. Second operand has 7 states, 6 states have (on average 30.166666666666668) internal successors, (181), 7 states have internal predecessors, (181), 4 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2025-03-17 15:52:14,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:52:14,205 INFO L93 Difference]: Finished difference Result 4377 states and 5708 transitions. [2025-03-17 15:52:14,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:52:14,206 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 30.166666666666668) internal successors, (181), 7 states have internal predecessors, (181), 4 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 110 [2025-03-17 15:52:14,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:52:14,228 INFO L225 Difference]: With dead ends: 4377 [2025-03-17 15:52:14,228 INFO L226 Difference]: Without dead ends: 4375 [2025-03-17 15:52:14,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:52:14,232 INFO L435 NwaCegarLoop]: 500 mSDtfsCounter, 2934 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 581 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2934 SdHoareTripleChecker+Valid, 1833 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 581 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:52:14,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2934 Valid, 1833 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [581 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-17 15:52:14,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4375 states. [2025-03-17 15:52:14,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4375 to 3695. [2025-03-17 15:52:14,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3695 states, 2688 states have (on average 1.265625) internal successors, (3402), 2703 states have internal predecessors, (3402), 699 states have call successors, (699), 299 states have call predecessors, (699), 307 states have return successors, (715), 715 states have call predecessors, (715), 699 states have call successors, (715) [2025-03-17 15:52:14,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3695 states to 3695 states and 4816 transitions. [2025-03-17 15:52:14,378 INFO L78 Accepts]: Start accepts. Automaton has 3695 states and 4816 transitions. Word has length 110 [2025-03-17 15:52:14,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:52:14,379 INFO L471 AbstractCegarLoop]: Abstraction has 3695 states and 4816 transitions. [2025-03-17 15:52:14,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 30.166666666666668) internal successors, (181), 7 states have internal predecessors, (181), 4 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2025-03-17 15:52:14,379 INFO L276 IsEmpty]: Start isEmpty. Operand 3695 states and 4816 transitions. [2025-03-17 15:52:14,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-17 15:52:14,384 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:52:14,384 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2025-03-17 15:52:14,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-17 15:52:14,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:52:14,585 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:52:14,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:52:14,585 INFO L85 PathProgramCache]: Analyzing trace with hash 2085940669, now seen corresponding path program 1 times [2025-03-17 15:52:14,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:52:14,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551609511] [2025-03-17 15:52:14,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:14,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:52:14,708 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-17 15:52:14,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-17 15:52:14,720 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:14,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:14,796 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-03-17 15:52:14,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:52:14,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551609511] [2025-03-17 15:52:14,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551609511] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:52:14,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:52:14,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:52:14,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378119699] [2025-03-17 15:52:14,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:52:14,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:52:14,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:52:14,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:52:14,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:52:14,798 INFO L87 Difference]: Start difference. First operand 3695 states and 4816 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 15:52:15,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:52:15,425 INFO L93 Difference]: Finished difference Result 7088 states and 9258 transitions. [2025-03-17 15:52:15,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:52:15,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 132 [2025-03-17 15:52:15,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:52:15,450 INFO L225 Difference]: With dead ends: 7088 [2025-03-17 15:52:15,450 INFO L226 Difference]: Without dead ends: 3495 [2025-03-17 15:52:15,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:52:15,462 INFO L435 NwaCegarLoop]: 919 mSDtfsCounter, 450 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 15:52:15,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 1375 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 15:52:15,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3495 states. [2025-03-17 15:52:15,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3495 to 3493. [2025-03-17 15:52:15,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3493 states, 2524 states have (on average 1.2503961965134707) internal successors, (3156), 2541 states have internal predecessors, (3156), 679 states have call successors, (679), 283 states have call predecessors, (679), 289 states have return successors, (691), 691 states have call predecessors, (691), 679 states have call successors, (691) [2025-03-17 15:52:15,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3493 states to 3493 states and 4526 transitions. [2025-03-17 15:52:15,636 INFO L78 Accepts]: Start accepts. Automaton has 3493 states and 4526 transitions. Word has length 132 [2025-03-17 15:52:15,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:52:15,638 INFO L471 AbstractCegarLoop]: Abstraction has 3493 states and 4526 transitions. [2025-03-17 15:52:15,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 15:52:15,639 INFO L276 IsEmpty]: Start isEmpty. Operand 3493 states and 4526 transitions. [2025-03-17 15:52:15,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2025-03-17 15:52:15,646 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:52:15,646 INFO L218 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-17 15:52:15,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-17 15:52:15,647 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:52:15,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:52:15,647 INFO L85 PathProgramCache]: Analyzing trace with hash -629712748, now seen corresponding path program 1 times [2025-03-17 15:52:15,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:52:15,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165565743] [2025-03-17 15:52:15,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:15,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:52:15,773 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 224 statements into 1 equivalence classes. [2025-03-17 15:52:15,790 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 224 of 224 statements. [2025-03-17 15:52:15,790 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:15,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:15,932 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2025-03-17 15:52:15,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:52:15,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165565743] [2025-03-17 15:52:15,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165565743] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:52:15,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:52:15,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:52:15,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309454513] [2025-03-17 15:52:15,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:52:15,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:52:15,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:52:15,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:52:15,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:52:15,934 INFO L87 Difference]: Start difference. First operand 3493 states and 4526 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-17 15:52:16,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:52:16,488 INFO L93 Difference]: Finished difference Result 6986 states and 9051 transitions. [2025-03-17 15:52:16,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:52:16,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 224 [2025-03-17 15:52:16,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:52:16,503 INFO L225 Difference]: With dead ends: 6986 [2025-03-17 15:52:16,503 INFO L226 Difference]: Without dead ends: 2871 [2025-03-17 15:52:16,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:52:16,514 INFO L435 NwaCegarLoop]: 550 mSDtfsCounter, 402 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 15:52:16,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 1039 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 15:52:16,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2025-03-17 15:52:16,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 2870. [2025-03-17 15:52:16,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2870 states, 2074 states have (on average 1.240115718418515) internal successors, (2572), 2087 states have internal predecessors, (2572), 556 states have call successors, (556), 233 states have call predecessors, (556), 239 states have return successors, (568), 568 states have call predecessors, (568), 556 states have call successors, (568) [2025-03-17 15:52:16,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 3696 transitions. [2025-03-17 15:52:16,755 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 3696 transitions. Word has length 224 [2025-03-17 15:52:16,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:52:16,760 INFO L471 AbstractCegarLoop]: Abstraction has 2870 states and 3696 transitions. [2025-03-17 15:52:16,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-17 15:52:16,760 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 3696 transitions. [2025-03-17 15:52:16,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2025-03-17 15:52:16,770 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:52:16,770 INFO L218 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-17 15:52:16,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-17 15:52:16,771 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:52:16,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:52:16,777 INFO L85 PathProgramCache]: Analyzing trace with hash 335850069, now seen corresponding path program 1 times [2025-03-17 15:52:16,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:52:16,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621076306] [2025-03-17 15:52:16,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:16,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:52:16,914 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 224 statements into 1 equivalence classes. [2025-03-17 15:52:16,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 224 of 224 statements. [2025-03-17 15:52:16,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:16,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:17,041 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2025-03-17 15:52:17,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:52:17,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621076306] [2025-03-17 15:52:17,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621076306] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:52:17,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:52:17,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 15:52:17,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664006426] [2025-03-17 15:52:17,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:52:17,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:52:17,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:52:17,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:52:17,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:52:17,044 INFO L87 Difference]: Start difference. First operand 2870 states and 3696 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-17 15:52:17,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:52:17,169 INFO L93 Difference]: Finished difference Result 5751 states and 7406 transitions. [2025-03-17 15:52:17,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:52:17,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 224 [2025-03-17 15:52:17,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:52:17,180 INFO L225 Difference]: With dead ends: 5751 [2025-03-17 15:52:17,181 INFO L226 Difference]: Without dead ends: 2876 [2025-03-17 15:52:17,186 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:52:17,187 INFO L435 NwaCegarLoop]: 494 mSDtfsCounter, 493 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:52:17,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 984 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:52:17,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2876 states. [2025-03-17 15:52:17,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2876 to 2870. [2025-03-17 15:52:17,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2870 states, 2074 states have (on average 1.238669238187078) internal successors, (2569), 2087 states have internal predecessors, (2569), 556 states have call successors, (556), 233 states have call predecessors, (556), 239 states have return successors, (568), 568 states have call predecessors, (568), 556 states have call successors, (568) [2025-03-17 15:52:17,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 3693 transitions. [2025-03-17 15:52:17,308 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 3693 transitions. Word has length 224 [2025-03-17 15:52:17,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:52:17,310 INFO L471 AbstractCegarLoop]: Abstraction has 2870 states and 3693 transitions. [2025-03-17 15:52:17,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-17 15:52:17,311 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 3693 transitions. [2025-03-17 15:52:17,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2025-03-17 15:52:17,318 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:52:17,318 INFO L218 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-17 15:52:17,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-17 15:52:17,319 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:52:17,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:52:17,320 INFO L85 PathProgramCache]: Analyzing trace with hash 2067834595, now seen corresponding path program 1 times [2025-03-17 15:52:17,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:52:17,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731993381] [2025-03-17 15:52:17,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:17,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:52:17,591 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 233 statements into 1 equivalence classes. [2025-03-17 15:52:17,611 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 233 of 233 statements. [2025-03-17 15:52:17,611 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:17,611 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:17,737 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2025-03-17 15:52:17,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:52:17,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731993381] [2025-03-17 15:52:17,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731993381] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:52:17,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:52:17,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 15:52:17,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405670585] [2025-03-17 15:52:17,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:52:17,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:52:17,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:52:17,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:52:17,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:52:17,739 INFO L87 Difference]: Start difference. First operand 2870 states and 3693 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-17 15:52:17,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:52:17,848 INFO L93 Difference]: Finished difference Result 5658 states and 7292 transitions. [2025-03-17 15:52:17,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:52:17,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 233 [2025-03-17 15:52:17,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:52:17,861 INFO L225 Difference]: With dead ends: 5658 [2025-03-17 15:52:17,861 INFO L226 Difference]: Without dead ends: 2874 [2025-03-17 15:52:17,868 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:52:17,868 INFO L435 NwaCegarLoop]: 494 mSDtfsCounter, 0 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1472 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:52:17,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1472 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:52:17,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2025-03-17 15:52:17,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 2874. [2025-03-17 15:52:17,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 2078 states have (on average 1.2377285851780557) internal successors, (2572), 2091 states have internal predecessors, (2572), 556 states have call successors, (556), 233 states have call predecessors, (556), 239 states have return successors, (568), 568 states have call predecessors, (568), 556 states have call successors, (568) [2025-03-17 15:52:17,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 3696 transitions. [2025-03-17 15:52:17,966 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 3696 transitions. Word has length 233 [2025-03-17 15:52:17,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:52:17,967 INFO L471 AbstractCegarLoop]: Abstraction has 2874 states and 3696 transitions. [2025-03-17 15:52:17,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-17 15:52:17,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 3696 transitions. [2025-03-17 15:52:17,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2025-03-17 15:52:17,973 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:52:17,973 INFO L218 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-17 15:52:17,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-17 15:52:17,974 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 15:52:17,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:52:17,974 INFO L85 PathProgramCache]: Analyzing trace with hash -66176824, now seen corresponding path program 1 times [2025-03-17 15:52:17,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:52:17,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608133375] [2025-03-17 15:52:17,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:17,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:52:18,096 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 252 statements into 1 equivalence classes. [2025-03-17 15:52:18,116 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 252 of 252 statements. [2025-03-17 15:52:18,117 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:18,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:18,179 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2025-03-17 15:52:18,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:52:18,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608133375] [2025-03-17 15:52:18,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608133375] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:52:18,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:52:18,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:52:18,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353127278] [2025-03-17 15:52:18,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:52:18,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:52:18,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:52:18,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:52:18,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:52:18,182 INFO L87 Difference]: Start difference. First operand 2874 states and 3696 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-17 15:52:18,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:52:18,641 INFO L93 Difference]: Finished difference Result 2988 states and 3826 transitions. [2025-03-17 15:52:18,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:52:18,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 252 [2025-03-17 15:52:18,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:52:18,647 INFO L225 Difference]: With dead ends: 2988 [2025-03-17 15:52:18,647 INFO L226 Difference]: Without dead ends: 0 [2025-03-17 15:52:18,652 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:52:18,652 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 0 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:52:18,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 191 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 15:52:18,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-17 15:52:18,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-17 15:52:18,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:52:18,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-17 15:52:18,657 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 252 [2025-03-17 15:52:18,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:52:18,657 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 15:52:18,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-17 15:52:18,658 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-17 15:52:18,658 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-17 15:52:18,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2025-03-17 15:52:18,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2025-03-17 15:52:18,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2025-03-17 15:52:18,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2025-03-17 15:52:18,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2025-03-17 15:52:18,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2025-03-17 15:52:18,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2025-03-17 15:52:18,662 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2025-03-17 15:52:18,662 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2025-03-17 15:52:18,662 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2025-03-17 15:52:18,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-17 15:52:18,664 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:52:18,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-17 15:52:23,176 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 15:52:23,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 03:52:23 BoogieIcfgContainer [2025-03-17 15:52:23,181 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 15:52:23,182 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 15:52:23,182 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 15:52:23,182 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 15:52:23,183 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:51:54" (3/4) ... [2025-03-17 15:52:23,185 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 15:52:23,190 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure tgt_ring_idx_inc [2025-03-17 15:52:23,190 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure __raw_spin_lock_init [2025-03-17 15:52:23,190 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure tgt_ring_exit [2025-03-17 15:52:23,190 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure uspace_ring_map [2025-03-17 15:52:23,190 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure printk [2025-03-17 15:52:23,190 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_destroy [2025-03-17 15:52:23,190 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure tgt_write [2025-03-17 15:52:23,190 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure tgt_ring_init [2025-03-17 15:52:23,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure ldv_error [2025-03-17 15:52:23,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure list_del [2025-03-17 15:52:23,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure kmem_cache_free [2025-03-17 15:52:23,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure tgt_head_event [2025-03-17 15:52:23,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure tgt_poll [2025-03-17 15:52:23,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure scsi_unmap_user_pages [2025-03-17 15:52:23,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure _raw_spin_lock_irqsave [2025-03-17 15:52:23,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure scsi_host_put [2025-03-17 15:52:23,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure hash_64 [2025-03-17 15:52:23,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~int [2025-03-17 15:52:23,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2025-03-17 15:52:23,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure tgt_open [2025-03-17 15:52:23,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure scsi_host_lookup [2025-03-17 15:52:23,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure tgt_mmap [2025-03-17 15:52:23,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure scsi_release_buffers [2025-03-17 15:52:23,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure kmem_cache_destroy [2025-03-17 15:52:23,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure spin_unlock_irqrestore [2025-03-17 15:52:23,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2025-03-17 15:52:23,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure destroy_workqueue [2025-03-17 15:52:23,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure _copy_from_user [2025-03-17 15:52:23,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure list_add [2025-03-17 15:52:23,192 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_to_host [2025-03-17 15:52:23,192 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure spinlock_check [2025-03-17 15:52:23,214 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 157 nodes and edges [2025-03-17 15:52:23,216 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 61 nodes and edges [2025-03-17 15:52:23,218 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2025-03-17 15:52:23,219 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-17 15:52:23,221 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-17 15:52:23,222 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-17 15:52:23,357 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 15:52:23,358 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 15:52:23,358 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 15:52:23,362 INFO L158 Benchmark]: Toolchain (without parser) took 32812.80ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 104.5MB in the beginning and 177.9MB in the end (delta: -73.3MB). Peak memory consumption was 91.8MB. Max. memory is 16.1GB. [2025-03-17 15:52:23,362 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 124.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 15:52:23,362 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1385.79ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 68.0MB in the end (delta: 36.5MB). Peak memory consumption was 102.3MB. Max. memory is 16.1GB. [2025-03-17 15:52:23,363 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.64ms. Allocated memory is still 142.6MB. Free memory was 68.0MB in the beginning and 58.8MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 15:52:23,363 INFO L158 Benchmark]: Boogie Preprocessor took 199.43ms. Allocated memory is still 142.6MB. Free memory was 58.8MB in the beginning and 74.8MB in the end (delta: -16.0MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2025-03-17 15:52:23,363 INFO L158 Benchmark]: IcfgBuilder took 1988.03ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 74.8MB in the beginning and 105.1MB in the end (delta: -30.3MB). Peak memory consumption was 55.0MB. Max. memory is 16.1GB. [2025-03-17 15:52:23,363 INFO L158 Benchmark]: TraceAbstraction took 28971.44ms. Allocated memory was 218.1MB in the beginning and 310.4MB in the end (delta: 92.3MB). Free memory was 105.1MB in the beginning and 198.0MB in the end (delta: -92.9MB). Peak memory consumption was 177.4MB. Max. memory is 16.1GB. [2025-03-17 15:52:23,363 INFO L158 Benchmark]: Witness Printer took 175.67ms. Allocated memory is still 310.4MB. Free memory was 198.0MB in the beginning and 177.9MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 15:52:23,364 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 124.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1385.79ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 68.0MB in the end (delta: 36.5MB). Peak memory consumption was 102.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.64ms. Allocated memory is still 142.6MB. Free memory was 68.0MB in the beginning and 58.8MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 199.43ms. Allocated memory is still 142.6MB. Free memory was 58.8MB in the beginning and 74.8MB in the end (delta: -16.0MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. * IcfgBuilder took 1988.03ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 74.8MB in the beginning and 105.1MB in the end (delta: -30.3MB). Peak memory consumption was 55.0MB. Max. memory is 16.1GB. * TraceAbstraction took 28971.44ms. Allocated memory was 218.1MB in the beginning and 310.4MB in the end (delta: 92.3MB). Free memory was 105.1MB in the beginning and 198.0MB in the end (delta: -92.9MB). Peak memory consumption was 177.4MB. Max. memory is 16.1GB. * Witness Printer took 175.67ms. Allocated memory is still 310.4MB. Free memory was 198.0MB in the beginning and 177.9MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 7332]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7332] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7545]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7545]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7600]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7600]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7627]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7627]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7750]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7750]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7740]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7740]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 32 procedures, 407 locations, 628 edges, 10 error locations. Started 1 CEGAR loops. OverallTime: 24.4s, OverallIterations: 25, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6765 SdHoareTripleChecker+Valid, 5.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6756 mSDsluCounter, 35732 SdHoareTripleChecker+Invalid, 5.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22119 mSDsCounter, 649 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1362 IncrementalHoareTripleChecker+Invalid, 2011 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 649 mSolverCounterUnsat, 13613 mSDtfsCounter, 1362 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1322 GetRequests, 1253 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3695occurred in iteration=20, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 25 MinimizatonAttempts, 1653 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 3409 NumberOfCodeBlocks, 3409 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 3714 ConstructedInterpolants, 0 QuantifiedInterpolants, 5177 SizeOfPredicates, 0 NumberOfNonLiveVariables, 12961 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 40 InterpolantComputations, 21 PerfectInterpolantSequences, 1924/2041 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-17 15:52:23,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE