./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1 --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-dev-d790fec [2024-12-02 13:56:50,056 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:56:50,111 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-12-02 13:56:50,116 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:56:50,117 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:56:50,138 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:56:50,138 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:56:50,139 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:56:50,139 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:56:50,139 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:56:50,139 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:56:50,139 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:56:50,140 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:56:50,140 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:56:50,140 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:56:50,140 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:56:50,140 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:56:50,140 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:56:50,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:56:50,140 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:56:50,141 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:56:50,141 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:56:50,141 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 13:56:50,141 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 13:56:50,141 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:56:50,141 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:56:50,141 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:56:50,141 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:56:50,141 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:56:50,141 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:56:50,142 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:56:50,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:56:50,142 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:56:50,142 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:56:50,142 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:56:50,142 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:56:50,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:56:50,142 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:56:50,142 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:56:50,143 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:56:50,143 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:56:50,143 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:56:50,143 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:56:50,143 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:56:50,143 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:56:50,143 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:56:50,143 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:56:50,143 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1 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 [2024-12-02 13:56:50,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:56:50,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:56:50,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:56:50,361 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:56:50,362 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:56:50,363 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2024-12-02 13:56:53,091 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/data/15a5f5fe3/66e410e1c1fa4463b02fe4d40d067160/FLAGd1ae6b261 [2024-12-02 13:56:53,501 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:56:53,502 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2024-12-02 13:56:53,532 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/data/15a5f5fe3/66e410e1c1fa4463b02fe4d40d067160/FLAGd1ae6b261 [2024-12-02 13:56:53,641 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/data/15a5f5fe3/66e410e1c1fa4463b02fe4d40d067160 [2024-12-02 13:56:53,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:56:53,644 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:56:53,646 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:56:53,646 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:56:53,650 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:56:53,651 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:56:53" (1/1) ... [2024-12-02 13:56:53,652 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55f3c89d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:56:53, skipping insertion in model container [2024-12-02 13:56:53,652 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:56:53" (1/1) ... [2024-12-02 13:56:53,728 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:56:54,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:56:54,867 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:56:55,053 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7332] [2024-12-02 13:56:55,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:56:55,124 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:56:55,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:56:55 WrapperNode [2024-12-02 13:56:55,124 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:56:55,125 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:56:55,125 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:56:55,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:56:55,130 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:56:55" (1/1) ... [2024-12-02 13:56:55,163 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:56:55" (1/1) ... [2024-12-02 13:56:55,217 INFO L138 Inliner]: procedures = 188, calls = 660, calls flagged for inlining = 75, calls inlined = 50, statements flattened = 1355 [2024-12-02 13:56:55,218 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:56:55,218 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:56:55,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:56:55,219 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:56:55,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:56:55" (1/1) ... [2024-12-02 13:56:55,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:56:55" (1/1) ... [2024-12-02 13:56:55,235 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:56:55" (1/1) ... [2024-12-02 13:56:55,324 INFO L175 MemorySlicer]: Split 204 memory accesses to 8 slices as follows [5, 2, 12, 32, 9, 21, 115, 8]. 56 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [0, 2, 12, 4, 9, 0, 54, 0]. The 38 writes are split as follows [0, 0, 0, 28, 0, 1, 9, 0]. [2024-12-02 13:56:55,325 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:56:55" (1/1) ... [2024-12-02 13:56:55,325 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:56:55" (1/1) ... [2024-12-02 13:56:55,359 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:56:55" (1/1) ... [2024-12-02 13:56:55,362 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:56:55" (1/1) ... [2024-12-02 13:56:55,368 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:56:55" (1/1) ... [2024-12-02 13:56:55,378 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:56:55" (1/1) ... [2024-12-02 13:56:55,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:56:55" (1/1) ... [2024-12-02 13:56:55,397 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:56:55,398 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:56:55,398 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:56:55,398 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:56:55,399 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:56:55" (1/1) ... [2024-12-02 13:56:55,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:56:55,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:56:55,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:56:55,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:56:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-12-02 13:56:55,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-12-02 13:56:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure uspace_ring_map [2024-12-02 13:56:55,457 INFO L138 BoogieDeclarations]: Found implementation of procedure uspace_ring_map [2024-12-02 13:56:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unmap_user_pages [2024-12-02 13:56:55,457 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unmap_user_pages [2024-12-02 13:56:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 13:56:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 13:56:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 13:56:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 13:56:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 13:56:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 13:56:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 13:56:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 13:56:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 13:56:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 13:56:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 13:56:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 13:56:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 13:56:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 13:56:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 13:56:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 13:56:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure hash_64 [2024-12-02 13:56:55,459 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_64 [2024-12-02 13:56:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_release_buffers [2024-12-02 13:56:55,459 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_release_buffers [2024-12-02 13:56:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 13:56:55,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 13:56:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2024-12-02 13:56:55,459 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2024-12-02 13:56:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_write [2024-12-02 13:56:55,459 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_write [2024-12-02 13:56:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 13:56:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 13:56:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 13:56:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 13:56:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 13:56:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 13:56:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 13:56:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 13:56:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-12-02 13:56:55,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-12-02 13:56:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-12-02 13:56:55,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-12-02 13:56:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_open [2024-12-02 13:56:55,460 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_open [2024-12-02 13:56:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2024-12-02 13:56:55,460 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2024-12-02 13:56:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 13:56:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_to_host [2024-12-02 13:56:55,460 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_to_host [2024-12-02 13:56:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-12-02 13:56:55,460 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-12-02 13:56:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:56:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_idx_inc [2024-12-02 13:56:55,461 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_idx_inc [2024-12-02 13:56:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 13:56:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 13:56:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 13:56:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 13:56:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 13:56:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 13:56:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 13:56:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 13:56:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 13:56:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_head_event [2024-12-02 13:56:55,462 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_head_event [2024-12-02 13:56:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2024-12-02 13:56:55,462 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2024-12-02 13:56:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-12-02 13:56:55,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-12-02 13:56:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 13:56:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 13:56:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 13:56:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 13:56:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 13:56:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 13:56:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 13:56:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 13:56:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-12-02 13:56:55,463 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-12-02 13:56:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2024-12-02 13:56:55,463 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2024-12-02 13:56:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 13:56:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 13:56:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 13:56:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 13:56:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 13:56:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 13:56:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 13:56:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 13:56:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 13:56:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_exit [2024-12-02 13:56:55,463 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_exit [2024-12-02 13:56:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-02 13:56:55,463 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-02 13:56:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_destroy [2024-12-02 13:56:55,464 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_destroy [2024-12-02 13:56:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_init [2024-12-02 13:56:55,464 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_init [2024-12-02 13:56:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2024-12-02 13:56:55,464 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2024-12-02 13:56:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2024-12-02 13:56:55,464 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2024-12-02 13:56:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_poll [2024-12-02 13:56:55,464 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_poll [2024-12-02 13:56:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-12-02 13:56:55,464 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-12-02 13:56:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_lookup [2024-12-02 13:56:55,464 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_lookup [2024-12-02 13:56:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_mmap [2024-12-02 13:56:55,464 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_mmap [2024-12-02 13:56:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:56:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 13:56:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 13:56:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 13:56:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 13:56:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 13:56:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 13:56:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 13:56:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-12-02 13:56:55,465 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-12-02 13:56:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:56:55,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:56:55,804 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:56:55,806 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:56:57,523 INFO L? ?]: Removed 647 outVars from TransFormulas that were not future-live. [2024-12-02 13:56:57,523 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:56:57,541 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:56:57,541 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 13:56:57,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:56:57 BoogieIcfgContainer [2024-12-02 13:56:57,541 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:56:57,543 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:56:57,544 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:56:57,548 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:56:57,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:56:53" (1/3) ... [2024-12-02 13:56:57,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b9f32f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:56:57, skipping insertion in model container [2024-12-02 13:56:57,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:56:55" (2/3) ... [2024-12-02 13:56:57,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b9f32f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:56:57, skipping insertion in model container [2024-12-02 13:56:57,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:56:57" (3/3) ... [2024-12-02 13:56:57,551 INFO L128 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2024-12-02 13:56:57,565 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:56:57,568 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, 434 locations, 1 initial locations, 0 loop locations, and 10 error locations. [2024-12-02 13:56:57,628 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:56:57,639 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;@4d0ede67, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:56:57,639 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-12-02 13:56:57,644 INFO L276 IsEmpty]: Start isEmpty. Operand has 434 states, 309 states have (on average 1.313915857605178) internal successors, (406), 326 states have internal predecessors, (406), 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) [2024-12-02 13:56:57,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-02 13:56:57,652 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:56:57,653 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:56:57,653 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:56:57,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:56:57,658 INFO L85 PathProgramCache]: Analyzing trace with hash -2035114833, now seen corresponding path program 1 times [2024-12-02 13:56:57,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:56:57,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407879340] [2024-12-02 13:56:57,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:56:57,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:56:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:56:58,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:56:58,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:56:58,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407879340] [2024-12-02 13:56:58,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407879340] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:56:58,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:56:58,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:56:58,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712632440] [2024-12-02 13:56:58,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:56:58,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:56:58,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:56:58,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:56:58,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:56:58,198 INFO L87 Difference]: Start difference. First operand has 434 states, 309 states have (on average 1.313915857605178) internal successors, (406), 326 states have internal predecessors, (406), 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 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-12-02 13:56:58,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:56:58,366 INFO L93 Difference]: Finished difference Result 969 states and 1292 transitions. [2024-12-02 13:56:58,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:56:58,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2024-12-02 13:56:58,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:56:58,380 INFO L225 Difference]: With dead ends: 969 [2024-12-02 13:56:58,380 INFO L226 Difference]: Without dead ends: 504 [2024-12-02 13:56:58,386 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 [2024-12-02 13:56:58,389 INFO L435 NwaCegarLoop]: 562 mSDtfsCounter, 135 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:56:58,390 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1086 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:56:58,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-12-02 13:56:58,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 499. [2024-12-02 13:56:58,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 359 states have (on average 1.3147632311977715) internal successors, (472), 375 states have internal predecessors, (472), 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) [2024-12-02 13:56:58,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 654 transitions. [2024-12-02 13:56:58,459 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 654 transitions. Word has length 15 [2024-12-02 13:56:58,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:56:58,460 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 654 transitions. [2024-12-02 13:56:58,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-12-02 13:56:58,460 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 654 transitions. [2024-12-02 13:56:58,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-02 13:56:58,462 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:56:58,462 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:56:58,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 13:56:58,462 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:56:58,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:56:58,463 INFO L85 PathProgramCache]: Analyzing trace with hash -748633520, now seen corresponding path program 1 times [2024-12-02 13:56:58,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:56:58,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534916822] [2024-12-02 13:56:58,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:56:58,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:56:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:56:58,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:56:58,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:56:58,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534916822] [2024-12-02 13:56:58,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534916822] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:56:58,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:56:58,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:56:58,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481827261] [2024-12-02 13:56:58,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:56:58,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:56:58,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:56:58,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:56:58,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:56:58,834 INFO L87 Difference]: Start difference. First operand 499 states and 654 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2024-12-02 13:57:00,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 13:57:00,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:00,195 INFO L93 Difference]: Finished difference Result 1374 states and 1803 transitions. [2024-12-02 13:57:00,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:57:00,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 20 [2024-12-02 13:57:00,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:00,202 INFO L225 Difference]: With dead ends: 1374 [2024-12-02 13:57:00,202 INFO L226 Difference]: Without dead ends: 878 [2024-12-02 13:57:00,205 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 [2024-12-02 13:57:00,205 INFO L435 NwaCegarLoop]: 933 mSDtfsCounter, 522 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:00,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1397 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 13:57:00,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2024-12-02 13:57:00,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 855. [2024-12-02 13:57:00,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 626 states have (on average 1.3115015974440896) internal successors, (821), 643 states have internal predecessors, (821), 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) [2024-12-02 13:57:00,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1128 transitions. [2024-12-02 13:57:00,262 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1128 transitions. Word has length 20 [2024-12-02 13:57:00,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:00,262 INFO L471 AbstractCegarLoop]: Abstraction has 855 states and 1128 transitions. [2024-12-02 13:57:00,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2024-12-02 13:57:00,263 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1128 transitions. [2024-12-02 13:57:00,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-12-02 13:57:00,264 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:00,264 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, 1, 1, 1] [2024-12-02 13:57:00,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:57:00,264 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:00,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:00,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1122377281, now seen corresponding path program 1 times [2024-12-02 13:57:00,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:00,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135566430] [2024-12-02 13:57:00,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:00,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:00,607 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:57:00,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:00,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135566430] [2024-12-02 13:57:00,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135566430] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:57:00,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:57:00,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:57:00,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807740962] [2024-12-02 13:57:00,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:57:00,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:57:00,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:00,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:57:00,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:57:00,609 INFO L87 Difference]: Start difference. First operand 855 states and 1128 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2024-12-02 13:57:01,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 13:57:01,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:01,999 INFO L93 Difference]: Finished difference Result 1713 states and 2261 transitions. [2024-12-02 13:57:01,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:57:01,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 38 [2024-12-02 13:57:01,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:02,005 INFO L225 Difference]: With dead ends: 1713 [2024-12-02 13:57:02,005 INFO L226 Difference]: Without dead ends: 855 [2024-12-02 13:57:02,008 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 [2024-12-02 13:57:02,008 INFO L435 NwaCegarLoop]: 538 mSDtfsCounter, 1 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1607 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:02,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1607 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 13:57:02,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2024-12-02 13:57:02,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 855. [2024-12-02 13:57:02,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 626 states have (on average 1.3083067092651757) internal successors, (819), 643 states have internal predecessors, (819), 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) [2024-12-02 13:57:02,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1126 transitions. [2024-12-02 13:57:02,057 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1126 transitions. Word has length 38 [2024-12-02 13:57:02,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:02,057 INFO L471 AbstractCegarLoop]: Abstraction has 855 states and 1126 transitions. [2024-12-02 13:57:02,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2024-12-02 13:57:02,057 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1126 transitions. [2024-12-02 13:57:02,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-12-02 13:57:02,058 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:02,059 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, 1, 1] [2024-12-02 13:57:02,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:57:02,059 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting tgt_ring_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:02,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:02,060 INFO L85 PathProgramCache]: Analyzing trace with hash -267193710, now seen corresponding path program 1 times [2024-12-02 13:57:02,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:02,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809951531] [2024-12-02 13:57:02,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:02,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:02,365 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 13:57:02,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:02,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809951531] [2024-12-02 13:57:02,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809951531] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:57:02,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:57:02,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:57:02,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882008080] [2024-12-02 13:57:02,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:57:02,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:57:02,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:02,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:57:02,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:57:02,366 INFO L87 Difference]: Start difference. First operand 855 states and 1126 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-12-02 13:57:02,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:02,438 INFO L93 Difference]: Finished difference Result 1727 states and 2285 transitions. [2024-12-02 13:57:02,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:57:02,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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 43 [2024-12-02 13:57:02,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:02,444 INFO L225 Difference]: With dead ends: 1727 [2024-12-02 13:57:02,444 INFO L226 Difference]: Without dead ends: 875 [2024-12-02 13:57:02,447 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 [2024-12-02 13:57:02,448 INFO L435 NwaCegarLoop]: 537 mSDtfsCounter, 4 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:02,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1068 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:57:02,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2024-12-02 13:57:02,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 867. [2024-12-02 13:57:02,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 638 states have (on average 1.3056426332288402) internal successors, (833), 655 states have internal predecessors, (833), 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) [2024-12-02 13:57:02,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1140 transitions. [2024-12-02 13:57:02,496 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1140 transitions. Word has length 43 [2024-12-02 13:57:02,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:02,496 INFO L471 AbstractCegarLoop]: Abstraction has 867 states and 1140 transitions. [2024-12-02 13:57:02,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-12-02 13:57:02,496 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1140 transitions. [2024-12-02 13:57:02,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-12-02 13:57:02,497 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:02,497 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, 1] [2024-12-02 13:57:02,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:57:02,498 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting tgt_ring_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:02,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:02,498 INFO L85 PathProgramCache]: Analyzing trace with hash 710832538, now seen corresponding path program 1 times [2024-12-02 13:57:02,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:02,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478630172] [2024-12-02 13:57:02,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:02,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:02,817 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 13:57:02,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:02,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478630172] [2024-12-02 13:57:02,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478630172] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:57:02,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39684144] [2024-12-02 13:57:02,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:02,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:57:02,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:57:02,820 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:57:02,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:57:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:03,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:57:03,352 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:57:03,392 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 13:57:03,392 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:57:03,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39684144] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:57:03,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:57:03,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-12-02 13:57:03,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358920954] [2024-12-02 13:57:03,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:57:03,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:57:03,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:03,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:57:03,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:57:03,394 INFO L87 Difference]: Start difference. First operand 867 states and 1140 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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) [2024-12-02 13:57:03,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:03,438 INFO L93 Difference]: Finished difference Result 879 states and 1158 transitions. [2024-12-02 13:57:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:57:03,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 49 [2024-12-02 13:57:03,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:03,442 INFO L225 Difference]: With dead ends: 879 [2024-12-02 13:57:03,443 INFO L226 Difference]: Without dead ends: 878 [2024-12-02 13:57:03,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:57:03,444 INFO L435 NwaCegarLoop]: 543 mSDtfsCounter, 7 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:03,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1077 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:57:03,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2024-12-02 13:57:03,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 866. [2024-12-02 13:57:03,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 638 states have (on average 1.3025078369905956) internal successors, (831), 654 states have internal predecessors, (831), 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) [2024-12-02 13:57:03,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1138 transitions. [2024-12-02 13:57:03,474 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1138 transitions. Word has length 49 [2024-12-02 13:57:03,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:03,474 INFO L471 AbstractCegarLoop]: Abstraction has 866 states and 1138 transitions. [2024-12-02 13:57:03,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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) [2024-12-02 13:57:03,474 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1138 transitions. [2024-12-02 13:57:03,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-12-02 13:57:03,475 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:03,476 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, 1, 1] [2024-12-02 13:57:03,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:57:03,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:57:03,676 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting tgt_ring_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:03,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:03,677 INFO L85 PathProgramCache]: Analyzing trace with hash 560972670, now seen corresponding path program 1 times [2024-12-02 13:57:03,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:03,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618034484] [2024-12-02 13:57:03,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:03,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:03,985 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 13:57:03,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:03,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618034484] [2024-12-02 13:57:03,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618034484] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:57:03,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701286264] [2024-12-02 13:57:03,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:03,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:57:03,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:57:03,989 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:57:03,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:57:04,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:04,563 INFO L256 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:57:04,566 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:57:04,593 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 13:57:04,593 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:57:04,635 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 13:57:04,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701286264] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:57:04,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:57:04,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-12-02 13:57:04,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145992657] [2024-12-02 13:57:04,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:57:04,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:57:04,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:04,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:57:04,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:57:04,637 INFO L87 Difference]: Start difference. First operand 866 states and 1138 transitions. Second operand has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 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) [2024-12-02 13:57:04,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:04,695 INFO L93 Difference]: Finished difference Result 900 states and 1190 transitions. [2024-12-02 13:57:04,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:57:04,696 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 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 50 [2024-12-02 13:57:04,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:04,701 INFO L225 Difference]: With dead ends: 900 [2024-12-02 13:57:04,701 INFO L226 Difference]: Without dead ends: 899 [2024-12-02 13:57:04,701 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:57:04,702 INFO L435 NwaCegarLoop]: 534 mSDtfsCounter, 12 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2650 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:04,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2650 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:57:04,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2024-12-02 13:57:04,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 855. [2024-12-02 13:57:04,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 628 states have (on average 1.3009554140127388) internal successors, (817), 643 states have internal predecessors, (817), 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) [2024-12-02 13:57:04,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1124 transitions. [2024-12-02 13:57:04,728 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1124 transitions. Word has length 50 [2024-12-02 13:57:04,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:04,728 INFO L471 AbstractCegarLoop]: Abstraction has 855 states and 1124 transitions. [2024-12-02 13:57:04,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 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) [2024-12-02 13:57:04,729 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1124 transitions. [2024-12-02 13:57:04,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-12-02 13:57:04,729 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:04,730 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, 1, 1, 1] [2024-12-02 13:57:04,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 13:57:04,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:57:04,930 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:04,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:04,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1026886907, now seen corresponding path program 1 times [2024-12-02 13:57:04,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:04,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824304443] [2024-12-02 13:57:04,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:04,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:05,182 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 13:57:05,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:05,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824304443] [2024-12-02 13:57:05,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824304443] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:57:05,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:57:05,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:57:05,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133028295] [2024-12-02 13:57:05,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:57:05,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:57:05,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:05,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:57:05,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:57:05,184 INFO L87 Difference]: Start difference. First operand 855 states and 1124 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 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) [2024-12-02 13:57:05,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:05,230 INFO L93 Difference]: Finished difference Result 1722 states and 2273 transitions. [2024-12-02 13:57:05,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:57:05,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 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 51 [2024-12-02 13:57:05,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:05,236 INFO L225 Difference]: With dead ends: 1722 [2024-12-02 13:57:05,236 INFO L226 Difference]: Without dead ends: 870 [2024-12-02 13:57:05,238 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 [2024-12-02 13:57:05,239 INFO L435 NwaCegarLoop]: 533 mSDtfsCounter, 1 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:05,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1062 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:57:05,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-12-02 13:57:05,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 870. [2024-12-02 13:57:05,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 643 states have (on average 1.2939346811819596) internal successors, (832), 658 states have internal predecessors, (832), 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) [2024-12-02 13:57:05,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1139 transitions. [2024-12-02 13:57:05,278 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1139 transitions. Word has length 51 [2024-12-02 13:57:05,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:05,278 INFO L471 AbstractCegarLoop]: Abstraction has 870 states and 1139 transitions. [2024-12-02 13:57:05,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 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) [2024-12-02 13:57:05,278 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1139 transitions. [2024-12-02 13:57:05,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 13:57:05,279 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:05,279 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:57:05,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 13:57:05,279 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:05,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:05,280 INFO L85 PathProgramCache]: Analyzing trace with hash -383163116, now seen corresponding path program 1 times [2024-12-02 13:57:05,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:05,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938414601] [2024-12-02 13:57:05,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:05,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:05,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:05,527 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 13:57:05,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:05,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938414601] [2024-12-02 13:57:05,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938414601] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:57:05,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602516323] [2024-12-02 13:57:05,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:05,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:57:05,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:57:05,530 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:57:05,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 13:57:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:06,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:57:06,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:57:06,098 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 13:57:06,098 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:57:06,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602516323] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:57:06,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:57:06,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2024-12-02 13:57:06,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893563988] [2024-12-02 13:57:06,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:57:06,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:57:06,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:06,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:57:06,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:57:06,099 INFO L87 Difference]: Start difference. First operand 870 states and 1139 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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) [2024-12-02 13:57:06,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:06,776 INFO L93 Difference]: Finished difference Result 1747 states and 2289 transitions. [2024-12-02 13:57:06,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:57:06,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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 56 [2024-12-02 13:57:06,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:06,780 INFO L225 Difference]: With dead ends: 1747 [2024-12-02 13:57:06,780 INFO L226 Difference]: Without dead ends: 870 [2024-12-02 13:57:06,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:57:06,783 INFO L435 NwaCegarLoop]: 534 mSDtfsCounter, 1 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2126 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:06,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2126 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:57:06,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-12-02 13:57:06,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 870. [2024-12-02 13:57:06,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 643 states have (on average 1.290824261275272) internal successors, (830), 656 states have internal predecessors, (830), 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) [2024-12-02 13:57:06,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1137 transitions. [2024-12-02 13:57:06,806 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1137 transitions. Word has length 56 [2024-12-02 13:57:06,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:06,806 INFO L471 AbstractCegarLoop]: Abstraction has 870 states and 1137 transitions. [2024-12-02 13:57:06,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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) [2024-12-02 13:57:06,807 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1137 transitions. [2024-12-02 13:57:06,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-12-02 13:57:06,807 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:06,808 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:57:06,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 13:57:07,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:57:07,008 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:07,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:07,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1636769325, now seen corresponding path program 1 times [2024-12-02 13:57:07,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:07,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686102100] [2024-12-02 13:57:07,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:07,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:07,306 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 13:57:07,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:07,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686102100] [2024-12-02 13:57:07,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686102100] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:57:07,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992135336] [2024-12-02 13:57:07,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:07,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:57:07,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:57:07,308 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:57:07,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 13:57:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:07,870 INFO L256 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 13:57:07,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:57:07,933 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 13:57:07,933 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:57:07,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992135336] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:57:07,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:57:07,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3] total 9 [2024-12-02 13:57:07,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938643946] [2024-12-02 13:57:07,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:57:07,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:57:07,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:07,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:57:07,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:57:07,935 INFO L87 Difference]: Start difference. First operand 870 states and 1137 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 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) [2024-12-02 13:57:08,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:08,024 INFO L93 Difference]: Finished difference Result 1755 states and 2299 transitions. [2024-12-02 13:57:08,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:57:08,024 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 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 78 [2024-12-02 13:57:08,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:08,029 INFO L225 Difference]: With dead ends: 1755 [2024-12-02 13:57:08,030 INFO L226 Difference]: Without dead ends: 888 [2024-12-02 13:57:08,032 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:57:08,033 INFO L435 NwaCegarLoop]: 542 mSDtfsCounter, 1 mSDsluCounter, 2678 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3220 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:08,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3220 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:57:08,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2024-12-02 13:57:08,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 882. [2024-12-02 13:57:08,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 653 states have (on average 1.2863705972434916) internal successors, (840), 666 states have internal predecessors, (840), 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) [2024-12-02 13:57:08,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1151 transitions. [2024-12-02 13:57:08,069 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1151 transitions. Word has length 78 [2024-12-02 13:57:08,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:08,070 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1151 transitions. [2024-12-02 13:57:08,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 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) [2024-12-02 13:57:08,070 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1151 transitions. [2024-12-02 13:57:08,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-12-02 13:57:08,071 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:08,071 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:57:08,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 13:57:08,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-12-02 13:57:08,271 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:08,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:08,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1097303593, now seen corresponding path program 1 times [2024-12-02 13:57:08,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:08,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421623546] [2024-12-02 13:57:08,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:08,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:08,518 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 13:57:08,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:08,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421623546] [2024-12-02 13:57:08,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421623546] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:57:08,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:57:08,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:57:08,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896634130] [2024-12-02 13:57:08,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:57:08,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:57:08,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:08,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:57:08,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:57:08,520 INFO L87 Difference]: Start difference. First operand 882 states and 1151 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-12-02 13:57:08,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:08,565 INFO L93 Difference]: Finished difference Result 1761 states and 2299 transitions. [2024-12-02 13:57:08,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:57:08,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 77 [2024-12-02 13:57:08,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:08,569 INFO L225 Difference]: With dead ends: 1761 [2024-12-02 13:57:08,569 INFO L226 Difference]: Without dead ends: 882 [2024-12-02 13:57:08,571 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 [2024-12-02 13:57:08,572 INFO L435 NwaCegarLoop]: 535 mSDtfsCounter, 0 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2126 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:08,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2126 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:57:08,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-12-02 13:57:08,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 882. [2024-12-02 13:57:08,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 653 states have (on average 1.2833078101071975) internal successors, (838), 666 states have internal predecessors, (838), 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) [2024-12-02 13:57:08,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1149 transitions. [2024-12-02 13:57:08,593 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1149 transitions. Word has length 77 [2024-12-02 13:57:08,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:08,593 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1149 transitions. [2024-12-02 13:57:08,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-12-02 13:57:08,593 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1149 transitions. [2024-12-02 13:57:08,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 13:57:08,594 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:08,594 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, 1, 1, 1] [2024-12-02 13:57:08,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 13:57:08,595 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:08,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:08,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1932911068, now seen corresponding path program 1 times [2024-12-02 13:57:08,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:08,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127612332] [2024-12-02 13:57:08,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:08,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:08,793 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-02 13:57:08,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:08,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127612332] [2024-12-02 13:57:08,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127612332] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:57:08,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64325484] [2024-12-02 13:57:08,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:08,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:57:08,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:57:08,795 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:57:08,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 13:57:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:09,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 1183 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:57:09,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:57:09,392 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-02 13:57:09,393 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:57:09,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64325484] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:57:09,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:57:09,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-12-02 13:57:09,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77621852] [2024-12-02 13:57:09,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:57:09,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:57:09,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:09,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:57:09,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:57:09,394 INFO L87 Difference]: Start difference. First operand 882 states and 1149 transitions. Second operand has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-12-02 13:57:09,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:09,423 INFO L93 Difference]: Finished difference Result 882 states and 1149 transitions. [2024-12-02 13:57:09,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:57:09,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 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 86 [2024-12-02 13:57:09,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:09,426 INFO L225 Difference]: With dead ends: 882 [2024-12-02 13:57:09,427 INFO L226 Difference]: Without dead ends: 881 [2024-12-02 13:57:09,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:57:09,427 INFO L435 NwaCegarLoop]: 530 mSDtfsCounter, 1 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1585 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:09,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1585 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:57:09,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-12-02 13:57:09,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 881. [2024-12-02 13:57:09,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 653 states have (on average 1.2787136294027566) internal successors, (835), 665 states have internal predecessors, (835), 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) [2024-12-02 13:57:09,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1146 transitions. [2024-12-02 13:57:09,449 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1146 transitions. Word has length 86 [2024-12-02 13:57:09,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:09,449 INFO L471 AbstractCegarLoop]: Abstraction has 881 states and 1146 transitions. [2024-12-02 13:57:09,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-12-02 13:57:09,449 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1146 transitions. [2024-12-02 13:57:09,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 13:57:09,450 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:09,450 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:57:09,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 13:57:09,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 13:57:09,651 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:09,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:09,651 INFO L85 PathProgramCache]: Analyzing trace with hash -209298917, now seen corresponding path program 1 times [2024-12-02 13:57:09,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:09,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354404461] [2024-12-02 13:57:09,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:09,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:09,928 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-02 13:57:09,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:09,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354404461] [2024-12-02 13:57:09,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354404461] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:57:09,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318291911] [2024-12-02 13:57:09,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:09,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:57:09,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:57:09,931 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:57:09,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 13:57:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:10,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:57:10,578 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:57:10,605 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-02 13:57:10,605 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:57:10,684 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-02 13:57:10,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318291911] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:57:10,685 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:57:10,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-12-02 13:57:10,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949917251] [2024-12-02 13:57:10,685 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:57:10,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:57:10,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:10,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:57:10,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:57:10,686 INFO L87 Difference]: Start difference. First operand 881 states and 1146 transitions. Second operand has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 7 states have internal predecessors, (71), 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) [2024-12-02 13:57:10,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:10,741 INFO L93 Difference]: Finished difference Result 899 states and 1173 transitions. [2024-12-02 13:57:10,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:57:10,741 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 7 states have internal predecessors, (71), 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 87 [2024-12-02 13:57:10,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:10,746 INFO L225 Difference]: With dead ends: 899 [2024-12-02 13:57:10,746 INFO L226 Difference]: Without dead ends: 872 [2024-12-02 13:57:10,747 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:57:10,747 INFO L435 NwaCegarLoop]: 529 mSDtfsCounter, 0 mSDsluCounter, 2111 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2640 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:10,747 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2640 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:57:10,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2024-12-02 13:57:10,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 852. [2024-12-02 13:57:10,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 630 states have (on average 1.2793650793650793) internal successors, (806), 640 states have internal predecessors, (806), 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) [2024-12-02 13:57:10,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1112 transitions. [2024-12-02 13:57:10,778 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1112 transitions. Word has length 87 [2024-12-02 13:57:10,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:10,779 INFO L471 AbstractCegarLoop]: Abstraction has 852 states and 1112 transitions. [2024-12-02 13:57:10,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 7 states have internal predecessors, (71), 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) [2024-12-02 13:57:10,779 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1112 transitions. [2024-12-02 13:57:10,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 13:57:10,780 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:10,780 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] [2024-12-02 13:57:10,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 13:57:10,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 13:57:10,981 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:10,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:10,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1424176286, now seen corresponding path program 1 times [2024-12-02 13:57:10,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:10,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150474011] [2024-12-02 13:57:10,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:10,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:11,230 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-02 13:57:11,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:11,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150474011] [2024-12-02 13:57:11,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150474011] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:57:11,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:57:11,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:57:11,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440885176] [2024-12-02 13:57:11,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:57:11,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:57:11,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:11,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:57:11,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:57:11,231 INFO L87 Difference]: Start difference. First operand 852 states and 1112 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2024-12-02 13:57:12,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:12,232 INFO L93 Difference]: Finished difference Result 2396 states and 3130 transitions. [2024-12-02 13:57:12,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:57:12,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 95 [2024-12-02 13:57:12,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:12,237 INFO L225 Difference]: With dead ends: 2396 [2024-12-02 13:57:12,237 INFO L226 Difference]: Without dead ends: 1547 [2024-12-02 13:57:12,239 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 [2024-12-02 13:57:12,240 INFO L435 NwaCegarLoop]: 629 mSDtfsCounter, 478 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:12,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 1105 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 13:57:12,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2024-12-02 13:57:12,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1544. [2024-12-02 13:57:12,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1140 states have (on average 1.263157894736842) internal successors, (1440), 1154 states have internal predecessors, (1440), 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) [2024-12-02 13:57:12,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 2000 transitions. [2024-12-02 13:57:12,277 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 2000 transitions. Word has length 95 [2024-12-02 13:57:12,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:12,278 INFO L471 AbstractCegarLoop]: Abstraction has 1544 states and 2000 transitions. [2024-12-02 13:57:12,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2024-12-02 13:57:12,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 2000 transitions. [2024-12-02 13:57:12,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 13:57:12,279 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:12,279 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, 1, 1, 1] [2024-12-02 13:57:12,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 13:57:12,279 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:12,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:12,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1270452131, now seen corresponding path program 1 times [2024-12-02 13:57:12,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:12,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762551738] [2024-12-02 13:57:12,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:12,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:12,506 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-12-02 13:57:12,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:12,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762551738] [2024-12-02 13:57:12,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762551738] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:57:12,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:57:12,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:57:12,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565844424] [2024-12-02 13:57:12,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:57:12,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:57:12,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:12,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:57:12,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:57:12,508 INFO L87 Difference]: Start difference. First operand 1544 states and 2000 transitions. Second operand has 3 states, 2 states have (on average 32.5) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-12-02 13:57:12,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:12,561 INFO L93 Difference]: Finished difference Result 3121 states and 4073 transitions. [2024-12-02 13:57:12,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:57:12,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 32.5) internal successors, (65), 3 states have internal predecessors, (65), 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 100 [2024-12-02 13:57:12,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:12,570 INFO L225 Difference]: With dead ends: 3121 [2024-12-02 13:57:12,570 INFO L226 Difference]: Without dead ends: 1580 [2024-12-02 13:57:12,574 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 [2024-12-02 13:57:12,574 INFO L435 NwaCegarLoop]: 523 mSDtfsCounter, 3 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:12,575 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1042 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:57:12,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2024-12-02 13:57:12,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1572. [2024-12-02 13:57:12,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1168 states have (on average 1.2602739726027397) internal successors, (1472), 1182 states have internal predecessors, (1472), 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) [2024-12-02 13:57:12,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 2032 transitions. [2024-12-02 13:57:12,632 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 2032 transitions. Word has length 100 [2024-12-02 13:57:12,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:12,633 INFO L471 AbstractCegarLoop]: Abstraction has 1572 states and 2032 transitions. [2024-12-02 13:57:12,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 32.5) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-12-02 13:57:12,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 2032 transitions. [2024-12-02 13:57:12,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 13:57:12,635 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:12,635 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, 1, 1] [2024-12-02 13:57:12,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 13:57:12,635 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:12,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:12,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1799654899, now seen corresponding path program 1 times [2024-12-02 13:57:12,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:12,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016434908] [2024-12-02 13:57:12,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:12,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:12,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:12,913 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-12-02 13:57:12,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:12,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016434908] [2024-12-02 13:57:12,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016434908] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:57:12,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:57:12,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:57:12,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570060162] [2024-12-02 13:57:12,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:57:12,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:57:12,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:12,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:57:12,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:57:12,915 INFO L87 Difference]: Start difference. First operand 1572 states and 2032 transitions. Second operand has 3 states, 2 states have (on average 32.0) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-12-02 13:57:12,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:12,990 INFO L93 Difference]: Finished difference Result 2413 states and 3107 transitions. [2024-12-02 13:57:12,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:57:12,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 32.0) internal successors, (64), 3 states have internal predecessors, (64), 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 99 [2024-12-02 13:57:12,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:13,003 INFO L225 Difference]: With dead ends: 2413 [2024-12-02 13:57:13,003 INFO L226 Difference]: Without dead ends: 2411 [2024-12-02 13:57:13,004 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 [2024-12-02 13:57:13,005 INFO L435 NwaCegarLoop]: 536 mSDtfsCounter, 458 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:13,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 1051 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:57:13,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2411 states. [2024-12-02 13:57:13,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2411 to 2409. [2024-12-02 13:57:13,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2409 states, 1795 states have (on average 1.252924791086351) internal successors, (2249), 1814 states have internal predecessors, (2249), 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) [2024-12-02 13:57:13,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2409 states to 2409 states and 3103 transitions. [2024-12-02 13:57:13,118 INFO L78 Accepts]: Start accepts. Automaton has 2409 states and 3103 transitions. Word has length 99 [2024-12-02 13:57:13,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:13,118 INFO L471 AbstractCegarLoop]: Abstraction has 2409 states and 3103 transitions. [2024-12-02 13:57:13,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 32.0) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-12-02 13:57:13,119 INFO L276 IsEmpty]: Start isEmpty. Operand 2409 states and 3103 transitions. [2024-12-02 13:57:13,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 13:57:13,120 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:13,121 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, 1, 1, 1] [2024-12-02 13:57:13,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 13:57:13,121 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:13,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:13,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1015366951, now seen corresponding path program 1 times [2024-12-02 13:57:13,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:13,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015736044] [2024-12-02 13:57:13,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:13,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:13,420 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-12-02 13:57:13,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:13,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015736044] [2024-12-02 13:57:13,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015736044] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:57:13,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835012711] [2024-12-02 13:57:13,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:13,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:57:13,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:57:13,422 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:57:13,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 13:57:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:14,115 INFO L256 TraceCheckSpWp]: Trace formula consists of 1362 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:57:14,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:57:14,152 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-12-02 13:57:14,152 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:57:14,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835012711] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:57:14,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:57:14,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2024-12-02 13:57:14,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24825510] [2024-12-02 13:57:14,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:57:14,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:57:14,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:14,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:57:14,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:57:14,154 INFO L87 Difference]: Start difference. First operand 2409 states and 3103 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-12-02 13:57:14,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:14,239 INFO L93 Difference]: Finished difference Result 4730 states and 6104 transitions. [2024-12-02 13:57:14,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:57:14,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 107 [2024-12-02 13:57:14,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:14,251 INFO L225 Difference]: With dead ends: 4730 [2024-12-02 13:57:14,251 INFO L226 Difference]: Without dead ends: 2429 [2024-12-02 13:57:14,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:57:14,257 INFO L435 NwaCegarLoop]: 526 mSDtfsCounter, 1 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2090 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 [2024-12-02 13:57:14,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2090 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:57:14,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2429 states. [2024-12-02 13:57:14,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2429 to 2419. [2024-12-02 13:57:14,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2419 states, 1805 states have (on average 1.2515235457063711) internal successors, (2259), 1819 states have internal predecessors, (2259), 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) [2024-12-02 13:57:14,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2419 states to 2419 states and 3113 transitions. [2024-12-02 13:57:14,353 INFO L78 Accepts]: Start accepts. Automaton has 2419 states and 3113 transitions. Word has length 107 [2024-12-02 13:57:14,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:14,353 INFO L471 AbstractCegarLoop]: Abstraction has 2419 states and 3113 transitions. [2024-12-02 13:57:14,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-12-02 13:57:14,353 INFO L276 IsEmpty]: Start isEmpty. Operand 2419 states and 3113 transitions. [2024-12-02 13:57:14,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 13:57:14,355 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:14,355 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, 1, 1, 1] [2024-12-02 13:57:14,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-12-02 13:57:14,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 13:57:14,556 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:14,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:14,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1399731865, now seen corresponding path program 1 times [2024-12-02 13:57:14,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:14,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622951883] [2024-12-02 13:57:14,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:14,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:14,850 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-12-02 13:57:14,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:14,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622951883] [2024-12-02 13:57:14,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622951883] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:57:14,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096232565] [2024-12-02 13:57:14,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:14,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:57:14,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:57:14,853 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:57:14,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 13:57:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:15,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 1349 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:57:15,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:57:15,639 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-12-02 13:57:15,639 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:57:15,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096232565] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:57:15,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:57:15,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-12-02 13:57:15,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090175800] [2024-12-02 13:57:15,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:57:15,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:57:15,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:15,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:57:15,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:57:15,641 INFO L87 Difference]: Start difference. First operand 2419 states and 3113 transitions. Second operand has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 4 states have internal predecessors, (68), 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) [2024-12-02 13:57:15,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:15,691 INFO L93 Difference]: Finished difference Result 2443 states and 3149 transitions. [2024-12-02 13:57:15,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:57:15,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 4 states have internal predecessors, (68), 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 106 [2024-12-02 13:57:15,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:15,699 INFO L225 Difference]: With dead ends: 2443 [2024-12-02 13:57:15,699 INFO L226 Difference]: Without dead ends: 2442 [2024-12-02 13:57:15,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:57:15,700 INFO L435 NwaCegarLoop]: 527 mSDtfsCounter, 5 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1565 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:15,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1565 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:57:15,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2024-12-02 13:57:15,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2418. [2024-12-02 13:57:15,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2418 states, 1805 states have (on average 1.2481994459833794) internal successors, (2253), 1818 states have internal predecessors, (2253), 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) [2024-12-02 13:57:15,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3107 transitions. [2024-12-02 13:57:15,761 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3107 transitions. Word has length 106 [2024-12-02 13:57:15,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:15,762 INFO L471 AbstractCegarLoop]: Abstraction has 2418 states and 3107 transitions. [2024-12-02 13:57:15,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 4 states have internal predecessors, (68), 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) [2024-12-02 13:57:15,762 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3107 transitions. [2024-12-02 13:57:15,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 13:57:15,764 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:15,764 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, 1, 1, 1] [2024-12-02 13:57:15,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 13:57:15,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-02 13:57:15,964 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:15,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:15,965 INFO L85 PathProgramCache]: Analyzing trace with hash -442014801, now seen corresponding path program 1 times [2024-12-02 13:57:15,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:15,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815212848] [2024-12-02 13:57:15,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:15,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:16,184 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-12-02 13:57:16,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:16,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815212848] [2024-12-02 13:57:16,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815212848] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:57:16,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350698795] [2024-12-02 13:57:16,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:16,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:57:16,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:57:16,186 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:57:16,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 13:57:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:16,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 1350 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:57:16,891 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:57:16,912 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-12-02 13:57:16,912 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:57:16,984 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-12-02 13:57:16,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350698795] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:57:16,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:57:16,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-12-02 13:57:16,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083596511] [2024-12-02 13:57:16,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:57:16,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:57:16,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:16,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:57:16,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:57:16,986 INFO L87 Difference]: Start difference. First operand 2418 states and 3107 transitions. Second operand has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 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) [2024-12-02 13:57:17,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:17,080 INFO L93 Difference]: Finished difference Result 2502 states and 3233 transitions. [2024-12-02 13:57:17,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:57:17,081 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 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 107 [2024-12-02 13:57:17,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:17,093 INFO L225 Difference]: With dead ends: 2502 [2024-12-02 13:57:17,093 INFO L226 Difference]: Without dead ends: 2501 [2024-12-02 13:57:17,094 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:57:17,095 INFO L435 NwaCegarLoop]: 520 mSDtfsCounter, 8 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:17,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2080 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:57:17,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2501 states. [2024-12-02 13:57:17,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2501 to 2381. [2024-12-02 13:57:17,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2381 states, 1769 states have (on average 1.2464669304691915) internal successors, (2205), 1781 states have internal predecessors, (2205), 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) [2024-12-02 13:57:17,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 3059 transitions. [2024-12-02 13:57:17,201 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 3059 transitions. Word has length 107 [2024-12-02 13:57:17,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:17,202 INFO L471 AbstractCegarLoop]: Abstraction has 2381 states and 3059 transitions. [2024-12-02 13:57:17,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 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) [2024-12-02 13:57:17,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 3059 transitions. [2024-12-02 13:57:17,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 13:57:17,205 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:17,205 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, 1, 1] [2024-12-02 13:57:17,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 13:57:17,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 13:57:17,406 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:17,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:17,407 INFO L85 PathProgramCache]: Analyzing trace with hash -2067496903, now seen corresponding path program 1 times [2024-12-02 13:57:17,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:17,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990949510] [2024-12-02 13:57:17,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:17,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:17,728 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-12-02 13:57:17,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:17,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990949510] [2024-12-02 13:57:17,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990949510] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:57:17,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692866724] [2024-12-02 13:57:17,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:17,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:57:17,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:57:17,731 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:57:17,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 13:57:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:18,460 INFO L256 TraceCheckSpWp]: Trace formula consists of 1301 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:57:18,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:57:18,624 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-12-02 13:57:18,624 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:57:18,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692866724] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:57:18,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:57:18,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-12-02 13:57:18,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815706142] [2024-12-02 13:57:18,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:57:18,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:57:18,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:18,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:57:18,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:57:18,626 INFO L87 Difference]: Start difference. First operand 2381 states and 3059 transitions. Second operand has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 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) [2024-12-02 13:57:19,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:19,710 INFO L93 Difference]: Finished difference Result 3103 states and 3989 transitions. [2024-12-02 13:57:19,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:57:19,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 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 112 [2024-12-02 13:57:19,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:19,724 INFO L225 Difference]: With dead ends: 3103 [2024-12-02 13:57:19,724 INFO L226 Difference]: Without dead ends: 3101 [2024-12-02 13:57:19,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:57:19,727 INFO L435 NwaCegarLoop]: 997 mSDtfsCounter, 958 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:19,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 1345 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 13:57:19,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3101 states. [2024-12-02 13:57:19,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3101 to 2379. [2024-12-02 13:57:19,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2379 states, 1769 states have (on average 1.2442057659694743) internal successors, (2201), 1779 states have internal predecessors, (2201), 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) [2024-12-02 13:57:19,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 3055 transitions. [2024-12-02 13:57:19,828 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 3055 transitions. Word has length 112 [2024-12-02 13:57:19,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:19,829 INFO L471 AbstractCegarLoop]: Abstraction has 2379 states and 3055 transitions. [2024-12-02 13:57:19,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 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) [2024-12-02 13:57:19,830 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 3055 transitions. [2024-12-02 13:57:19,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 13:57:19,832 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:19,833 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, 1, 1, 1] [2024-12-02 13:57:19,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 13:57:20,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:57:20,033 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:20,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:20,033 INFO L85 PathProgramCache]: Analyzing trace with hash 332106150, now seen corresponding path program 1 times [2024-12-02 13:57:20,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:20,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127198539] [2024-12-02 13:57:20,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:20,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:20,286 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-12-02 13:57:20,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:20,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127198539] [2024-12-02 13:57:20,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127198539] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:57:20,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569648632] [2024-12-02 13:57:20,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:20,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:57:20,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:57:20,288 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:57:20,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 13:57:20,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:20,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 1302 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:57:20,926 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:57:21,039 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-12-02 13:57:21,039 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:57:21,148 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-12-02 13:57:21,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569648632] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:57:21,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:57:21,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-12-02 13:57:21,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360687597] [2024-12-02 13:57:21,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:57:21,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:57:21,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:21,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:57:21,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:57:21,150 INFO L87 Difference]: Start difference. First operand 2379 states and 3055 transitions. Second operand has 7 states, 6 states have (on average 31.0) internal successors, (186), 7 states have internal predecessors, (186), 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) [2024-12-02 13:57:22,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:22,172 INFO L93 Difference]: Finished difference Result 4647 states and 5978 transitions. [2024-12-02 13:57:22,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:57:22,173 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 31.0) internal successors, (186), 7 states have internal predecessors, (186), 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 113 [2024-12-02 13:57:22,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:22,183 INFO L225 Difference]: With dead ends: 4647 [2024-12-02 13:57:22,183 INFO L226 Difference]: Without dead ends: 4645 [2024-12-02 13:57:22,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:57:22,185 INFO L435 NwaCegarLoop]: 528 mSDtfsCounter, 2737 mSDsluCounter, 1429 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2737 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:22,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2737 Valid, 1957 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 13:57:22,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4645 states. [2024-12-02 13:57:22,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4645 to 3923. [2024-12-02 13:57:22,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3923 states, 2916 states have (on average 1.2448559670781894) internal successors, (3630), 2931 states have internal predecessors, (3630), 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) [2024-12-02 13:57:22,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3923 states to 3923 states and 5044 transitions. [2024-12-02 13:57:22,281 INFO L78 Accepts]: Start accepts. Automaton has 3923 states and 5044 transitions. Word has length 113 [2024-12-02 13:57:22,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:22,282 INFO L471 AbstractCegarLoop]: Abstraction has 3923 states and 5044 transitions. [2024-12-02 13:57:22,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 31.0) internal successors, (186), 7 states have internal predecessors, (186), 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) [2024-12-02 13:57:22,282 INFO L276 IsEmpty]: Start isEmpty. Operand 3923 states and 5044 transitions. [2024-12-02 13:57:22,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 13:57:22,285 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:22,285 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, 1, 1, 1] [2024-12-02 13:57:22,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 13:57:22,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:57:22,486 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:22,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:22,486 INFO L85 PathProgramCache]: Analyzing trace with hash -759692976, now seen corresponding path program 1 times [2024-12-02 13:57:22,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:22,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843103595] [2024-12-02 13:57:22,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:22,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:22,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:22,710 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 13:57:22,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:22,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843103595] [2024-12-02 13:57:22,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843103595] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:57:22,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:57:22,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:57:22,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218242701] [2024-12-02 13:57:22,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:57:22,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:57:22,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:22,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:57:22,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:57:22,712 INFO L87 Difference]: Start difference. First operand 3923 states and 5044 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-12-02 13:57:23,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:23,473 INFO L93 Difference]: Finished difference Result 7524 states and 9694 transitions. [2024-12-02 13:57:23,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:57:23,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 135 [2024-12-02 13:57:23,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:23,490 INFO L225 Difference]: With dead ends: 7524 [2024-12-02 13:57:23,490 INFO L226 Difference]: Without dead ends: 3711 [2024-12-02 13:57:23,499 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 [2024-12-02 13:57:23,500 INFO L435 NwaCegarLoop]: 966 mSDtfsCounter, 471 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:23,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 1447 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:57:23,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3711 states. [2024-12-02 13:57:23,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3711 to 3709. [2024-12-02 13:57:23,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3709 states, 2740 states have (on average 1.2306569343065694) internal successors, (3372), 2757 states have internal predecessors, (3372), 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) [2024-12-02 13:57:23,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3709 states to 3709 states and 4742 transitions. [2024-12-02 13:57:23,671 INFO L78 Accepts]: Start accepts. Automaton has 3709 states and 4742 transitions. Word has length 135 [2024-12-02 13:57:23,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:23,671 INFO L471 AbstractCegarLoop]: Abstraction has 3709 states and 4742 transitions. [2024-12-02 13:57:23,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-12-02 13:57:23,672 INFO L276 IsEmpty]: Start isEmpty. Operand 3709 states and 4742 transitions. [2024-12-02 13:57:23,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-12-02 13:57:23,681 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:23,681 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:57:23,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 13:57:23,681 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:23,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:23,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1293113351, now seen corresponding path program 1 times [2024-12-02 13:57:23,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:23,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593776870] [2024-12-02 13:57:23,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:23,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:23,995 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-12-02 13:57:23,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:23,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593776870] [2024-12-02 13:57:23,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593776870] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:57:23,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:57:23,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:57:23,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184729114] [2024-12-02 13:57:23,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:57:23,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:57:23,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:23,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:57:23,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:57:23,997 INFO L87 Difference]: Start difference. First operand 3709 states and 4742 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2024-12-02 13:57:25,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 13:57:25,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:25,493 INFO L93 Difference]: Finished difference Result 7416 states and 9481 transitions. [2024-12-02 13:57:25,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:57:25,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 228 [2024-12-02 13:57:25,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:25,513 INFO L225 Difference]: With dead ends: 7416 [2024-12-02 13:57:25,513 INFO L226 Difference]: Without dead ends: 3045 [2024-12-02 13:57:25,524 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 [2024-12-02 13:57:25,526 INFO L435 NwaCegarLoop]: 581 mSDtfsCounter, 422 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:25,527 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 1095 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 13:57:25,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3045 states. [2024-12-02 13:57:25,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3045 to 3044. [2024-12-02 13:57:25,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3044 states, 2248 states have (on average 1.2215302491103204) internal successors, (2746), 2261 states have internal predecessors, (2746), 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) [2024-12-02 13:57:25,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3044 states to 3044 states and 3870 transitions. [2024-12-02 13:57:25,685 INFO L78 Accepts]: Start accepts. Automaton has 3044 states and 3870 transitions. Word has length 228 [2024-12-02 13:57:25,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:25,686 INFO L471 AbstractCegarLoop]: Abstraction has 3044 states and 3870 transitions. [2024-12-02 13:57:25,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2024-12-02 13:57:25,686 INFO L276 IsEmpty]: Start isEmpty. Operand 3044 states and 3870 transitions. [2024-12-02 13:57:25,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-12-02 13:57:25,693 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:25,693 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, 1, 1, 1, 1] [2024-12-02 13:57:25,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 13:57:25,693 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:25,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:25,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1557760841, now seen corresponding path program 1 times [2024-12-02 13:57:25,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:25,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218034116] [2024-12-02 13:57:25,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:25,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:26,015 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-12-02 13:57:26,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:26,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218034116] [2024-12-02 13:57:26,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218034116] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:57:26,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:57:26,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:57:26,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380315773] [2024-12-02 13:57:26,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:57:26,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:57:26,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:26,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:57:26,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:57:26,016 INFO L87 Difference]: Start difference. First operand 3044 states and 3870 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, (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) [2024-12-02 13:57:26,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:26,164 INFO L93 Difference]: Finished difference Result 6097 states and 7752 transitions. [2024-12-02 13:57:26,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:57:26,164 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, (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 228 [2024-12-02 13:57:26,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:26,173 INFO L225 Difference]: With dead ends: 6097 [2024-12-02 13:57:26,173 INFO L226 Difference]: Without dead ends: 3050 [2024-12-02 13:57:26,176 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 [2024-12-02 13:57:26,177 INFO L435 NwaCegarLoop]: 520 mSDtfsCounter, 517 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:26,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 1036 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:57:26,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2024-12-02 13:57:26,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 3044. [2024-12-02 13:57:26,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3044 states, 2248 states have (on average 1.2201957295373667) internal successors, (2743), 2261 states have internal predecessors, (2743), 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) [2024-12-02 13:57:26,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3044 states to 3044 states and 3867 transitions. [2024-12-02 13:57:26,318 INFO L78 Accepts]: Start accepts. Automaton has 3044 states and 3867 transitions. Word has length 228 [2024-12-02 13:57:26,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:26,318 INFO L471 AbstractCegarLoop]: Abstraction has 3044 states and 3867 transitions. [2024-12-02 13:57:26,318 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, (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) [2024-12-02 13:57:26,318 INFO L276 IsEmpty]: Start isEmpty. Operand 3044 states and 3867 transitions. [2024-12-02 13:57:26,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-12-02 13:57:26,324 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:26,324 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:57:26,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 13:57:26,325 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:26,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:26,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1080042104, now seen corresponding path program 1 times [2024-12-02 13:57:26,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:26,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749067263] [2024-12-02 13:57:26,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:26,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:26,666 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2024-12-02 13:57:26,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:26,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749067263] [2024-12-02 13:57:26,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749067263] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:57:26,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:57:26,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:57:26,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615316298] [2024-12-02 13:57:26,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:57:26,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:57:26,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:26,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:57:26,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:57:26,668 INFO L87 Difference]: Start difference. First operand 3044 states and 3867 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2024-12-02 13:57:26,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:26,801 INFO L93 Difference]: Finished difference Result 6000 states and 7634 transitions. [2024-12-02 13:57:26,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:57:26,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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 237 [2024-12-02 13:57:26,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:26,812 INFO L225 Difference]: With dead ends: 6000 [2024-12-02 13:57:26,812 INFO L226 Difference]: Without dead ends: 3048 [2024-12-02 13:57:26,817 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 [2024-12-02 13:57:26,817 INFO L435 NwaCegarLoop]: 520 mSDtfsCounter, 0 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:26,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1550 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:57:26,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3048 states. [2024-12-02 13:57:26,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3048 to 3048. [2024-12-02 13:57:26,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3048 states, 2252 states have (on average 1.219360568383659) internal successors, (2746), 2265 states have internal predecessors, (2746), 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) [2024-12-02 13:57:26,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3048 states to 3048 states and 3870 transitions. [2024-12-02 13:57:26,992 INFO L78 Accepts]: Start accepts. Automaton has 3048 states and 3870 transitions. Word has length 237 [2024-12-02 13:57:26,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:26,993 INFO L471 AbstractCegarLoop]: Abstraction has 3048 states and 3870 transitions. [2024-12-02 13:57:26,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2024-12-02 13:57:26,993 INFO L276 IsEmpty]: Start isEmpty. Operand 3048 states and 3870 transitions. [2024-12-02 13:57:27,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-12-02 13:57:27,000 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:57:27,001 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, 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] [2024-12-02 13:57:27,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 13:57:27,001 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 13:57:27,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:57:27,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1854049015, now seen corresponding path program 1 times [2024-12-02 13:57:27,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:57:27,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493601610] [2024-12-02 13:57:27,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:57:27,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:57:27,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:57:27,352 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 13:57:27,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:57:27,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493601610] [2024-12-02 13:57:27,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493601610] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:57:27,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:57:27,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:57:27,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518916407] [2024-12-02 13:57:27,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:57:27,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:57:27,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:57:27,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:57:27,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:57:27,353 INFO L87 Difference]: Start difference. First operand 3048 states and 3870 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2024-12-02 13:57:27,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:57:27,976 INFO L93 Difference]: Finished difference Result 3168 states and 4006 transitions. [2024-12-02 13:57:27,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:57:27,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 258 [2024-12-02 13:57:27,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:57:27,980 INFO L225 Difference]: With dead ends: 3168 [2024-12-02 13:57:27,980 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 13:57:27,983 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 [2024-12-02 13:57:27,984 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:57:27,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 205 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 13:57:27,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 13:57:27,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 13:57:27,985 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) [2024-12-02 13:57:27,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 13:57:27,988 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 258 [2024-12-02 13:57:27,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:57:27,988 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 13:57:27,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2024-12-02 13:57:27,989 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 13:57:27,989 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 13:57:27,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-12-02 13:57:27,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-12-02 13:57:27,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-12-02 13:57:27,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-12-02 13:57:27,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-12-02 13:57:27,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-12-02 13:57:27,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-12-02 13:57:27,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-12-02 13:57:27,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-12-02 13:57:27,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-12-02 13:57:27,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 13:57:27,995 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] [2024-12-02 13:57:27,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 13:57:33,572 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 13:57:33,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:57:33 BoogieIcfgContainer [2024-12-02 13:57:33,584 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 13:57:33,585 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 13:57:33,585 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 13:57:33,585 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 13:57:33,586 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:56:57" (3/4) ... [2024-12-02 13:57:33,587 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 13:57:33,591 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_idx_inc [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __raw_spin_lock_init [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_exit [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure uspace_ring_map [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_destroy [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_write [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_init [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_del [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_free [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_head_event [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_poll [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_unmap_user_pages [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _raw_spin_lock_irqsave [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_put [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_64 [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~int [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_open [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_lookup [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_mmap [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_release_buffers [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_destroy [2024-12-02 13:57:33,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spin_unlock_irqrestore [2024-12-02 13:57:33,593 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-12-02 13:57:33,593 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure destroy_workqueue [2024-12-02 13:57:33,593 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _copy_from_user [2024-12-02 13:57:33,593 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_add [2024-12-02 13:57:33,593 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_to_host [2024-12-02 13:57:33,593 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spinlock_check [2024-12-02 13:57:33,604 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 159 nodes and edges [2024-12-02 13:57:33,605 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 62 nodes and edges [2024-12-02 13:57:33,606 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2024-12-02 13:57:33,607 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-12-02 13:57:33,608 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-02 13:57:33,610 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 13:57:33,760 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 13:57:33,760 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 13:57:33,760 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 13:57:33,761 INFO L158 Benchmark]: Toolchain (without parser) took 40117.04ms. Allocated memory was 142.6MB in the beginning and 595.6MB in the end (delta: 453.0MB). Free memory was 107.2MB in the beginning and 374.7MB in the end (delta: -267.5MB). Peak memory consumption was 186.0MB. Max. memory is 16.1GB. [2024-12-02 13:57:33,761 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:57:33,762 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1479.30ms. Allocated memory is still 142.6MB. Free memory was 107.2MB in the beginning and 62.1MB in the end (delta: 45.1MB). Peak memory consumption was 93.9MB. Max. memory is 16.1GB. [2024-12-02 13:57:33,762 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.58ms. Allocated memory is still 142.6MB. Free memory was 62.1MB in the beginning and 52.9MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:57:33,762 INFO L158 Benchmark]: Boogie Preprocessor took 178.88ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 52.9MB in the beginning and 254.1MB in the end (delta: -201.2MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2024-12-02 13:57:33,762 INFO L158 Benchmark]: RCFGBuilder took 2143.43ms. Allocated memory is still 327.2MB. Free memory was 254.1MB in the beginning and 253.6MB in the end (delta: 485.1kB). Peak memory consumption was 137.3MB. Max. memory is 16.1GB. [2024-12-02 13:57:33,762 INFO L158 Benchmark]: TraceAbstraction took 36041.03ms. Allocated memory was 327.2MB in the beginning and 595.6MB in the end (delta: 268.4MB). Free memory was 253.6MB in the beginning and 395.7MB in the end (delta: -142.1MB). Peak memory consumption was 363.3MB. Max. memory is 16.1GB. [2024-12-02 13:57:33,763 INFO L158 Benchmark]: Witness Printer took 175.55ms. Allocated memory is still 595.6MB. Free memory was 395.7MB in the beginning and 374.7MB in the end (delta: 21.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 13:57:33,764 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1479.30ms. Allocated memory is still 142.6MB. Free memory was 107.2MB in the beginning and 62.1MB in the end (delta: 45.1MB). Peak memory consumption was 93.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.58ms. Allocated memory is still 142.6MB. Free memory was 62.1MB in the beginning and 52.9MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 178.88ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 52.9MB in the beginning and 254.1MB in the end (delta: -201.2MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. * RCFGBuilder took 2143.43ms. Allocated memory is still 327.2MB. Free memory was 254.1MB in the beginning and 253.6MB in the end (delta: 485.1kB). Peak memory consumption was 137.3MB. Max. memory is 16.1GB. * TraceAbstraction took 36041.03ms. Allocated memory was 327.2MB in the beginning and 595.6MB in the end (delta: 268.4MB). Free memory was 253.6MB in the beginning and 395.7MB in the end (delta: -142.1MB). Peak memory consumption was 363.3MB. Max. memory is 16.1GB. * Witness Printer took 175.55ms. Allocated memory is still 595.6MB. Free memory was 395.7MB in the beginning and 374.7MB in the end (delta: 21.0MB). Peak memory consumption was 25.2MB. 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: 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 - 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 32 procedures, 434 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 30.4s, OverallIterations: 25, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 11.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6752 SdHoareTripleChecker+Valid, 9.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6743 mSDsluCounter, 39212 SdHoareTripleChecker+Invalid, 8.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24885 mSDsCounter, 490 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1222 IncrementalHoareTripleChecker+Invalid, 1712 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 490 mSolverCounterUnsat, 14327 mSDtfsCounter, 1222 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1370 GetRequests, 1301 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3923occurred 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, 1738 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 3526 NumberOfCodeBlocks, 3526 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 3843 ConstructedInterpolants, 0 QuantifiedInterpolants, 5350 SizeOfPredicates, 0 NumberOfNonLiveVariables, 13185 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 40 InterpolantComputations, 21 PerfectInterpolantSequences, 1933/2056 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 - InvariantResult [Line: 6932]: Location Invariant Derived location invariant: (((((ref_cnt <= 0) && (0 <= ref_cnt)) && (ldv_state_variable_1 == 1)) && (ldv_state_variable_0 == 3)) || ((((ldv_state_variable_1 == 2) && (1 <= ref_cnt)) && (ldv_state_variable_0 == 3)) && (ref_cnt <= 1))) - InvariantResult [Line: 7666]: Location Invariant Derived location invariant: ((((ldv_state_variable_0 == 1) && (ldv_retval_1 == 0)) && (ldv_state_variable_1 == 1)) && (ref_cnt == 0)) - InvariantResult [Line: 7065]: Location Invariant Derived location invariant: (((((ref_cnt <= 0) && (0 <= ref_cnt)) && (ldv_state_variable_1 == 1)) && (ldv_state_variable_0 == 3)) || ((((ldv_state_variable_1 == 2) && (1 <= ref_cnt)) && (ldv_state_variable_0 == 3)) && (ref_cnt <= 1))) - InvariantResult [Line: 6818]: Location Invariant Derived location invariant: (((((ref_cnt <= 0) && (0 <= ref_cnt)) && (ldv_state_variable_1 == 1)) && (ldv_state_variable_0 == 3)) || ((((ldv_state_variable_1 == 2) && (1 <= ref_cnt)) && (ldv_state_variable_0 == 3)) && (ref_cnt <= 1))) - InvariantResult [Line: 7649]: Location Invariant Derived location invariant: (((((ldv_state_variable_0 == 1) && (ldv_retval_1 == 0)) && (ldv_state_variable_1 == 1)) && (ref_cnt == 0)) || ((((ldv_state_variable_0 == 1) && (ldv_retval_1 == 0)) && (ldv_state_variable_1 == 0)) && (ref_cnt == 0))) - InvariantResult [Line: 7075]: Location Invariant Derived location invariant: ((((ldv_state_variable_0 == 1) && (((long) err + 12) <= 0)) || ((((ldv_state_variable_0 == 1) && (ldv_retval_1 == 0)) && (ldv_state_variable_1 == 1)) && (ref_cnt == 0))) || ((((ldv_state_variable_0 == 1) && (ldv_retval_1 == 0)) && (ldv_state_variable_1 == 0)) && (ref_cnt == 0))) - InvariantResult [Line: 7019]: Location Invariant Derived location invariant: (((((ref_cnt <= 0) && (0 <= ref_cnt)) && (ldv_state_variable_1 == 1)) && (ldv_state_variable_0 == 3)) || ((((ldv_state_variable_1 == 2) && (1 <= ref_cnt)) && (ldv_state_variable_0 == 3)) && (ref_cnt <= 1))) - InvariantResult [Line: 6890]: Location Invariant Derived location invariant: (((((ref_cnt <= 0) && (0 <= ref_cnt)) && (ldv_state_variable_1 == 1)) && (ldv_state_variable_0 == 3)) || ((((ldv_state_variable_1 == 2) && (1 <= ref_cnt)) && (ldv_state_variable_0 == 3)) && (ref_cnt <= 1))) - InvariantResult [Line: 7095]: Location Invariant Derived location invariant: (((((ldv_state_variable_0 == 1) && (ldv_retval_1 == 0)) && (ldv_state_variable_1 == 1)) && (ref_cnt == 0)) || ((((ldv_state_variable_0 == 1) && (ldv_retval_1 == 0)) && (ldv_state_variable_1 == 0)) && (ref_cnt == 0))) RESULT: Ultimate proved your program to be correct! [2024-12-02 13:57:33,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d88ec9-97e9-4be1-977e-eb59237e75cb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE