./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_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/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_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB --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 [2024-11-28 04:16:01,087 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:16:01,198 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-28 04:16:01,206 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:16:01,207 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:16:01,244 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:16:01,245 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:16:01,245 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:16:01,245 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:16:01,245 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:16:01,246 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:16:01,246 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:16:01,247 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:16:01,247 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:16:01,248 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:16:01,249 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:16:01,249 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:16:01,249 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:16:01,250 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:16:01,250 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:16:01,250 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:16:01,250 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:16:01,250 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:16:01,250 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:16:01,250 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:16:01,250 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:16:01,250 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:16:01,250 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:16:01,251 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:16:01,251 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:16:01,251 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:16:01,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:16:01,251 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:16:01,251 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:16:01,252 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:16:01,252 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:16:01,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:16:01,252 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:16:01,252 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:16:01,252 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:16:01,252 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:16:01,252 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:16:01,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:16:01,252 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:16:01,252 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:16:01,252 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:16:01,253 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:16:01,253 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_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB 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 [2024-11-28 04:16:01,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:16:01,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:16:01,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:16:01,615 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:16:01,615 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:16:01,617 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2024-11-28 04:16:04,590 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/data/ab4cdfacf/0989f514934b4265bb03ad772ac1bec0/FLAG34e4d722b [2024-11-28 04:16:05,276 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:16:05,277 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2024-11-28 04:16:05,323 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/data/ab4cdfacf/0989f514934b4265bb03ad772ac1bec0/FLAG34e4d722b [2024-11-28 04:16:05,676 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/data/ab4cdfacf/0989f514934b4265bb03ad772ac1bec0 [2024-11-28 04:16:05,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:16:05,682 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:16:05,683 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:16:05,683 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:16:05,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:16:05,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:16:05" (1/1) ... [2024-11-28 04:16:05,690 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59be0f47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:05, skipping insertion in model container [2024-11-28 04:16:05,690 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:16:05" (1/1) ... [2024-11-28 04:16:05,811 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:16:07,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:16:07,413 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:16:07,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7332] [2024-11-28 04:16:07,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:16:07,926 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:16:07,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:07 WrapperNode [2024-11-28 04:16:07,927 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:16:07,928 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:16:07,928 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:16:07,928 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:16:07,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:07" (1/1) ... [2024-11-28 04:16:07,992 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:07" (1/1) ... [2024-11-28 04:16:08,068 INFO L138 Inliner]: procedures = 188, calls = 660, calls flagged for inlining = 75, calls inlined = 50, statements flattened = 1355 [2024-11-28 04:16:08,068 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:16:08,069 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:16:08,069 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:16:08,069 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:16:08,089 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:07" (1/1) ... [2024-11-28 04:16:08,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:07" (1/1) ... [2024-11-28 04:16:08,103 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:07" (1/1) ... [2024-11-28 04:16:08,249 INFO L175 MemorySlicer]: Split 204 memory accesses to 8 slices as follows [2, 115, 8, 32, 9, 5, 21, 12]. 56 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 54, 0, 4, 9, 0, 0, 12]. The 38 writes are split as follows [0, 9, 0, 28, 0, 0, 1, 0]. [2024-11-28 04:16:08,249 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:07" (1/1) ... [2024-11-28 04:16:08,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:07" (1/1) ... [2024-11-28 04:16:08,307 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:07" (1/1) ... [2024-11-28 04:16:08,310 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:07" (1/1) ... [2024-11-28 04:16:08,325 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:07" (1/1) ... [2024-11-28 04:16:08,345 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:07" (1/1) ... [2024-11-28 04:16:08,353 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:07" (1/1) ... [2024-11-28 04:16:08,388 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:16:08,389 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:16:08,389 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:16:08,389 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:16:08,390 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:07" (1/1) ... [2024-11-28 04:16:08,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:16:08,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:16:08,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:16:08,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:16:08,475 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-28 04:16:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-28 04:16:08,475 INFO L130 BoogieDeclarations]: Found specification of procedure uspace_ring_map [2024-11-28 04:16:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure uspace_ring_map [2024-11-28 04:16:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unmap_user_pages [2024-11-28 04:16:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unmap_user_pages [2024-11-28 04:16:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 04:16:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 04:16:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 04:16:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 04:16:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 04:16:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 04:16:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-28 04:16:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-28 04:16:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:16:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:16:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 04:16:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 04:16:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 04:16:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 04:16:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 04:16:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 04:16:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure hash_64 [2024-11-28 04:16:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_64 [2024-11-28 04:16:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_release_buffers [2024-11-28 04:16:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_release_buffers [2024-11-28 04:16:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-28 04:16:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-28 04:16:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2024-11-28 04:16:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2024-11-28 04:16:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_write [2024-11-28 04:16:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_write [2024-11-28 04:16:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:16:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:16:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 04:16:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 04:16:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 04:16:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 04:16:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 04:16:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 04:16:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-28 04:16:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-28 04:16:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-28 04:16:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-28 04:16:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_open [2024-11-28 04:16:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_open [2024-11-28 04:16:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2024-11-28 04:16:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2024-11-28 04:16:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:16:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_to_host [2024-11-28 04:16:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_to_host [2024-11-28 04:16:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-28 04:16:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-28 04:16:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:16:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_idx_inc [2024-11-28 04:16:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_idx_inc [2024-11-28 04:16:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:16:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:16:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:16:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 04:16:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 04:16:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 04:16:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 04:16:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 04:16:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-28 04:16:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_head_event [2024-11-28 04:16:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_head_event [2024-11-28 04:16:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2024-11-28 04:16:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2024-11-28 04:16:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-28 04:16:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-28 04:16:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:16:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:16:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 04:16:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 04:16:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 04:16:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 04:16:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 04:16:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-28 04:16:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-28 04:16:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-28 04:16:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2024-11-28 04:16:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2024-11-28 04:16:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:16:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 04:16:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 04:16:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 04:16:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 04:16:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 04:16:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 04:16:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-28 04:16:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-28 04:16:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_exit [2024-11-28 04:16:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_exit [2024-11-28 04:16:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-28 04:16:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-28 04:16:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_destroy [2024-11-28 04:16:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_destroy [2024-11-28 04:16:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_init [2024-11-28 04:16:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_init [2024-11-28 04:16:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2024-11-28 04:16:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2024-11-28 04:16:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2024-11-28 04:16:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2024-11-28 04:16:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_poll [2024-11-28 04:16:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_poll [2024-11-28 04:16:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-11-28 04:16:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-11-28 04:16:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_lookup [2024-11-28 04:16:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_lookup [2024-11-28 04:16:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_mmap [2024-11-28 04:16:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_mmap [2024-11-28 04:16:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:16:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:16:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:16:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:16:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 04:16:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 04:16:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 04:16:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 04:16:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-28 04:16:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-28 04:16:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:16:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:16:09,030 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:16:09,034 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:16:11,309 INFO L? ?]: Removed 647 outVars from TransFormulas that were not future-live. [2024-11-28 04:16:11,310 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:16:11,339 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:16:11,340 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:16:11,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:16:11 BoogieIcfgContainer [2024-11-28 04:16:11,341 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:16:11,343 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:16:11,343 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:16:11,348 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:16:11,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:16:05" (1/3) ... [2024-11-28 04:16:11,349 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@692f13d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:16:11, skipping insertion in model container [2024-11-28 04:16:11,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:16:07" (2/3) ... [2024-11-28 04:16:11,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@692f13d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:16:11, skipping insertion in model container [2024-11-28 04:16:11,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:16:11" (3/3) ... [2024-11-28 04:16:11,353 INFO L128 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2024-11-28 04:16:11,365 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:16:11,368 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. [2024-11-28 04:16:11,432 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:16:11,444 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;@72032960, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:16:11,444 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-28 04:16:11,449 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) [2024-11-28 04:16:11,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 04:16:11,457 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:11,458 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:16:11,459 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)] === [2024-11-28 04:16:11,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:11,464 INFO L85 PathProgramCache]: Analyzing trace with hash -2035114833, now seen corresponding path program 1 times [2024-11-28 04:16:11,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:11,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088834600] [2024-11-28 04:16:11,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:11,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:12,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:16:12,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:12,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088834600] [2024-11-28 04:16:12,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088834600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:16:12,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:16:12,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:16:12,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563031894] [2024-11-28 04:16:12,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:16:12,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:16:12,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:12,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:16:12,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:16:12,253 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) [2024-11-28 04:16:12,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:12,588 INFO L93 Difference]: Finished difference Result 969 states and 1292 transitions. [2024-11-28 04:16:12,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:16:12,591 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 [2024-11-28 04:16:12,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:12,605 INFO L225 Difference]: With dead ends: 969 [2024-11-28 04:16:12,605 INFO L226 Difference]: Without dead ends: 504 [2024-11-28 04:16:12,613 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 [2024-11-28 04:16:12,617 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 [2024-11-28 04:16:12,618 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] [2024-11-28 04:16:12,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-11-28 04:16:12,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 499. [2024-11-28 04:16:12,704 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) [2024-11-28 04:16:12,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 654 transitions. [2024-11-28 04:16:12,714 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 654 transitions. Word has length 15 [2024-11-28 04:16:12,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:12,715 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 654 transitions. [2024-11-28 04:16:12,715 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) [2024-11-28 04:16:12,715 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 654 transitions. [2024-11-28 04:16:12,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-28 04:16:12,717 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:12,717 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] [2024-11-28 04:16:12,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:16:12,717 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)] === [2024-11-28 04:16:12,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:12,718 INFO L85 PathProgramCache]: Analyzing trace with hash -748633520, now seen corresponding path program 1 times [2024-11-28 04:16:12,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:12,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083293988] [2024-11-28 04:16:12,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:12,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:13,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:16:13,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:13,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083293988] [2024-11-28 04:16:13,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083293988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:16:13,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:16:13,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:16:13,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758830520] [2024-11-28 04:16:13,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:16:13,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:16:13,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:13,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:16:13,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:16:13,249 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) [2024-11-28 04:16:15,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:16:15,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:15,537 INFO L93 Difference]: Finished difference Result 1374 states and 1803 transitions. [2024-11-28 04:16:15,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:16:15,543 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 [2024-11-28 04:16:15,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:15,556 INFO L225 Difference]: With dead ends: 1374 [2024-11-28 04:16:15,557 INFO L226 Difference]: Without dead ends: 878 [2024-11-28 04:16:15,559 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 [2024-11-28 04:16:15,560 INFO L435 NwaCegarLoop]: 933 mSDtfsCounter, 522 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:16:15,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1397 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 04:16:15,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2024-11-28 04:16:15,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 855. [2024-11-28 04:16:15,650 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) [2024-11-28 04:16:15,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1128 transitions. [2024-11-28 04:16:15,659 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1128 transitions. Word has length 20 [2024-11-28 04:16:15,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:15,659 INFO L471 AbstractCegarLoop]: Abstraction has 855 states and 1128 transitions. [2024-11-28 04:16:15,659 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) [2024-11-28 04:16:15,659 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1128 transitions. [2024-11-28 04:16:15,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 04:16:15,660 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:15,660 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] [2024-11-28 04:16:15,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:16:15,661 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)] === [2024-11-28 04:16:15,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:15,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1122377281, now seen corresponding path program 1 times [2024-11-28 04:16:15,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:15,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126186601] [2024-11-28 04:16:15,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:15,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:16,096 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:16:16,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:16,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126186601] [2024-11-28 04:16:16,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126186601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:16:16,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:16:16,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:16:16,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938894706] [2024-11-28 04:16:16,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:16:16,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:16:16,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:16,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:16:16,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:16:16,099 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) [2024-11-28 04:16:17,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:17,128 INFO L93 Difference]: Finished difference Result 1713 states and 2261 transitions. [2024-11-28 04:16:17,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:16:17,128 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 [2024-11-28 04:16:17,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:17,135 INFO L225 Difference]: With dead ends: 1713 [2024-11-28 04:16:17,135 INFO L226 Difference]: Without dead ends: 855 [2024-11-28 04:16:17,138 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 [2024-11-28 04:16:17,139 INFO L435 NwaCegarLoop]: 538 mSDtfsCounter, 1 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:16:17,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1607 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:16:17,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2024-11-28 04:16:17,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 855. [2024-11-28 04:16:17,184 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) [2024-11-28 04:16:17,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1126 transitions. [2024-11-28 04:16:17,192 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1126 transitions. Word has length 38 [2024-11-28 04:16:17,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:17,193 INFO L471 AbstractCegarLoop]: Abstraction has 855 states and 1126 transitions. [2024-11-28 04:16:17,193 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) [2024-11-28 04:16:17,193 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1126 transitions. [2024-11-28 04:16:17,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 04:16:17,195 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:17,195 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] [2024-11-28 04:16:17,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:16:17,195 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)] === [2024-11-28 04:16:17,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:17,196 INFO L85 PathProgramCache]: Analyzing trace with hash -267193710, now seen corresponding path program 1 times [2024-11-28 04:16:17,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:17,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464691954] [2024-11-28 04:16:17,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:17,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:17,619 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:16:17,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:17,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464691954] [2024-11-28 04:16:17,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464691954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:16:17,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:16:17,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:16:17,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704559055] [2024-11-28 04:16:17,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:16:17,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:16:17,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:17,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:16:17,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:16:17,621 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) [2024-11-28 04:16:17,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:17,722 INFO L93 Difference]: Finished difference Result 1727 states and 2285 transitions. [2024-11-28 04:16:17,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:16:17,722 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 [2024-11-28 04:16:17,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:17,730 INFO L225 Difference]: With dead ends: 1727 [2024-11-28 04:16:17,730 INFO L226 Difference]: Without dead ends: 875 [2024-11-28 04:16:17,733 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 [2024-11-28 04:16:17,737 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 [2024-11-28 04:16:17,738 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] [2024-11-28 04:16:17,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2024-11-28 04:16:17,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 867. [2024-11-28 04:16:17,798 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) [2024-11-28 04:16:17,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1140 transitions. [2024-11-28 04:16:17,809 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1140 transitions. Word has length 43 [2024-11-28 04:16:17,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:17,810 INFO L471 AbstractCegarLoop]: Abstraction has 867 states and 1140 transitions. [2024-11-28 04:16:17,810 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) [2024-11-28 04:16:17,811 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1140 transitions. [2024-11-28 04:16:17,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-28 04:16:17,814 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:17,814 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] [2024-11-28 04:16:17,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:16:17,815 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)] === [2024-11-28 04:16:17,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:17,815 INFO L85 PathProgramCache]: Analyzing trace with hash 710832538, now seen corresponding path program 1 times [2024-11-28 04:16:17,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:17,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609371479] [2024-11-28 04:16:17,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:17,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:18,285 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:16:18,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:18,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609371479] [2024-11-28 04:16:18,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609371479] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:16:18,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588393119] [2024-11-28 04:16:18,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:18,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:18,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:16:18,291 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:16:18,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:16:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:19,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:16:19,128 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:16:19,209 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:16:19,209 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:16:19,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588393119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:16:19,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:16:19,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-28 04:16:19,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776792438] [2024-11-28 04:16:19,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:16:19,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:16:19,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:19,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:16:19,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:16:19,212 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) [2024-11-28 04:16:19,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:19,310 INFO L93 Difference]: Finished difference Result 879 states and 1158 transitions. [2024-11-28 04:16:19,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:16:19,311 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 [2024-11-28 04:16:19,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:19,317 INFO L225 Difference]: With dead ends: 879 [2024-11-28 04:16:19,317 INFO L226 Difference]: Without dead ends: 878 [2024-11-28 04:16:19,318 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 [2024-11-28 04:16:19,319 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 [2024-11-28 04:16:19,320 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] [2024-11-28 04:16:19,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2024-11-28 04:16:19,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 866. [2024-11-28 04:16:19,367 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) [2024-11-28 04:16:19,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1138 transitions. [2024-11-28 04:16:19,376 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1138 transitions. Word has length 49 [2024-11-28 04:16:19,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:19,377 INFO L471 AbstractCegarLoop]: Abstraction has 866 states and 1138 transitions. [2024-11-28 04:16:19,377 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) [2024-11-28 04:16:19,377 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1138 transitions. [2024-11-28 04:16:19,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-28 04:16:19,379 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:19,379 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] [2024-11-28 04:16:19,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:16:19,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:19,584 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)] === [2024-11-28 04:16:19,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:19,588 INFO L85 PathProgramCache]: Analyzing trace with hash 560972670, now seen corresponding path program 1 times [2024-11-28 04:16:19,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:19,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569316742] [2024-11-28 04:16:19,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:19,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:20,022 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:16:20,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:20,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569316742] [2024-11-28 04:16:20,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569316742] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:16:20,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498871818] [2024-11-28 04:16:20,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:20,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:20,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:16:20,026 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:16:20,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:16:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:20,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:16:20,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:16:20,769 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:16:20,769 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:16:20,850 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:16:20,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498871818] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:16:20,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:16:20,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-28 04:16:20,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734030426] [2024-11-28 04:16:20,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:16:20,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:16:20,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:20,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:16:20,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:16:20,852 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) [2024-11-28 04:16:20,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:20,947 INFO L93 Difference]: Finished difference Result 900 states and 1190 transitions. [2024-11-28 04:16:20,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:16:20,947 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 [2024-11-28 04:16:20,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:20,953 INFO L225 Difference]: With dead ends: 900 [2024-11-28 04:16:20,953 INFO L226 Difference]: Without dead ends: 899 [2024-11-28 04:16:20,954 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 [2024-11-28 04:16:20,955 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 [2024-11-28 04:16:20,955 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] [2024-11-28 04:16:20,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2024-11-28 04:16:20,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 855. [2024-11-28 04:16:20,994 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) [2024-11-28 04:16:21,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1124 transitions. [2024-11-28 04:16:21,001 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1124 transitions. Word has length 50 [2024-11-28 04:16:21,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:21,002 INFO L471 AbstractCegarLoop]: Abstraction has 855 states and 1124 transitions. [2024-11-28 04:16:21,002 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) [2024-11-28 04:16:21,002 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1124 transitions. [2024-11-28 04:16:21,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 04:16:21,003 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:21,003 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] [2024-11-28 04:16:21,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:16:21,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-28 04:16:21,204 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)] === [2024-11-28 04:16:21,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:21,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1026886907, now seen corresponding path program 1 times [2024-11-28 04:16:21,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:21,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459327917] [2024-11-28 04:16:21,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:21,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:21,555 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 04:16:21,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:21,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459327917] [2024-11-28 04:16:21,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459327917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:16:21,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:16:21,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:16:21,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623156214] [2024-11-28 04:16:21,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:16:21,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:16:21,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:21,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:16:21,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:16:21,557 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) [2024-11-28 04:16:21,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:21,641 INFO L93 Difference]: Finished difference Result 1722 states and 2273 transitions. [2024-11-28 04:16:21,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:16:21,642 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 [2024-11-28 04:16:21,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:21,648 INFO L225 Difference]: With dead ends: 1722 [2024-11-28 04:16:21,648 INFO L226 Difference]: Without dead ends: 870 [2024-11-28 04:16:21,651 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 [2024-11-28 04:16:21,652 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 [2024-11-28 04:16:21,653 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] [2024-11-28 04:16:21,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-11-28 04:16:21,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 870. [2024-11-28 04:16:21,698 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) [2024-11-28 04:16:21,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1139 transitions. [2024-11-28 04:16:21,707 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1139 transitions. Word has length 51 [2024-11-28 04:16:21,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:21,707 INFO L471 AbstractCegarLoop]: Abstraction has 870 states and 1139 transitions. [2024-11-28 04:16:21,708 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) [2024-11-28 04:16:21,708 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1139 transitions. [2024-11-28 04:16:21,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 04:16:21,710 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:21,710 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] [2024-11-28 04:16:21,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:16:21,710 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)] === [2024-11-28 04:16:21,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:21,711 INFO L85 PathProgramCache]: Analyzing trace with hash -383163116, now seen corresponding path program 1 times [2024-11-28 04:16:21,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:21,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745307944] [2024-11-28 04:16:21,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:21,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:22,068 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 04:16:22,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:22,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745307944] [2024-11-28 04:16:22,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745307944] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:16:22,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392094204] [2024-11-28 04:16:22,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:22,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:22,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:16:22,071 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:16:22,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:16:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:22,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:16:22,775 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:16:22,822 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 04:16:22,822 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:16:22,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392094204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:16:22,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:16:22,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2024-11-28 04:16:22,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836751909] [2024-11-28 04:16:22,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:16:22,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:16:22,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:22,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:16:22,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:16:22,824 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) [2024-11-28 04:16:25,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:16:25,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:25,230 INFO L93 Difference]: Finished difference Result 1747 states and 2289 transitions. [2024-11-28 04:16:25,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:16:25,231 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 [2024-11-28 04:16:25,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:25,236 INFO L225 Difference]: With dead ends: 1747 [2024-11-28 04:16:25,236 INFO L226 Difference]: Without dead ends: 870 [2024-11-28 04:16:25,241 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 [2024-11-28 04:16:25,243 INFO L435 NwaCegarLoop]: 534 mSDtfsCounter, 1 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:16:25,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2126 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 04:16:25,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-11-28 04:16:25,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 870. [2024-11-28 04:16:25,285 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) [2024-11-28 04:16:25,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1137 transitions. [2024-11-28 04:16:25,292 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1137 transitions. Word has length 56 [2024-11-28 04:16:25,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:25,293 INFO L471 AbstractCegarLoop]: Abstraction has 870 states and 1137 transitions. [2024-11-28 04:16:25,293 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) [2024-11-28 04:16:25,293 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1137 transitions. [2024-11-28 04:16:25,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-28 04:16:25,294 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:25,294 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] [2024-11-28 04:16:25,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:16:25,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:25,495 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)] === [2024-11-28 04:16:25,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:25,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1636769325, now seen corresponding path program 1 times [2024-11-28 04:16:25,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:25,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663170087] [2024-11-28 04:16:25,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:25,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:25,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:25,850 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 04:16:25,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:25,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663170087] [2024-11-28 04:16:25,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663170087] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:16:25,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032344502] [2024-11-28 04:16:25,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:25,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:25,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:16:25,854 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:16:25,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:16:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:26,593 INFO L256 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:16:26,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:16:26,687 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 04:16:26,688 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:16:26,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032344502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:16:26,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:16:26,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3] total 9 [2024-11-28 04:16:26,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359098828] [2024-11-28 04:16:26,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:16:26,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:16:26,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:26,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:16:26,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:16:26,691 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) [2024-11-28 04:16:26,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:26,847 INFO L93 Difference]: Finished difference Result 1755 states and 2299 transitions. [2024-11-28 04:16:26,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:16:26,848 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 [2024-11-28 04:16:26,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:26,855 INFO L225 Difference]: With dead ends: 1755 [2024-11-28 04:16:26,855 INFO L226 Difference]: Without dead ends: 888 [2024-11-28 04:16:26,859 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 [2024-11-28 04:16:26,861 INFO L435 NwaCegarLoop]: 542 mSDtfsCounter, 1 mSDsluCounter, 2678 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:16:26,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3220 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:16:26,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2024-11-28 04:16:26,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 882. [2024-11-28 04:16:26,915 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) [2024-11-28 04:16:26,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1151 transitions. [2024-11-28 04:16:26,923 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1151 transitions. Word has length 78 [2024-11-28 04:16:26,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:26,924 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1151 transitions. [2024-11-28 04:16:26,924 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) [2024-11-28 04:16:26,924 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1151 transitions. [2024-11-28 04:16:26,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 04:16:26,925 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:26,926 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] [2024-11-28 04:16:26,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 04:16:27,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:27,126 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)] === [2024-11-28 04:16:27,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:27,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1097303593, now seen corresponding path program 1 times [2024-11-28 04:16:27,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:27,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432807846] [2024-11-28 04:16:27,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:27,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:27,488 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 04:16:27,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:27,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432807846] [2024-11-28 04:16:27,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432807846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:16:27,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:16:27,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:16:27,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131755573] [2024-11-28 04:16:27,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:16:27,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:16:27,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:27,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:16:27,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:16:27,490 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) [2024-11-28 04:16:27,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:27,565 INFO L93 Difference]: Finished difference Result 1761 states and 2299 transitions. [2024-11-28 04:16:27,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:16:27,566 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 [2024-11-28 04:16:27,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:27,572 INFO L225 Difference]: With dead ends: 1761 [2024-11-28 04:16:27,572 INFO L226 Difference]: Without dead ends: 882 [2024-11-28 04:16:27,575 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 [2024-11-28 04:16:27,576 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 [2024-11-28 04:16:27,577 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] [2024-11-28 04:16:27,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-11-28 04:16:27,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 882. [2024-11-28 04:16:27,612 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) [2024-11-28 04:16:27,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1149 transitions. [2024-11-28 04:16:27,618 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1149 transitions. Word has length 77 [2024-11-28 04:16:27,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:27,619 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1149 transitions. [2024-11-28 04:16:27,619 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) [2024-11-28 04:16:27,619 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1149 transitions. [2024-11-28 04:16:27,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 04:16:27,620 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:27,620 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] [2024-11-28 04:16:27,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:16:27,621 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)] === [2024-11-28 04:16:27,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:27,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1932911068, now seen corresponding path program 1 times [2024-11-28 04:16:27,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:27,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372342594] [2024-11-28 04:16:27,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:27,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 04:16:28,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:28,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372342594] [2024-11-28 04:16:28,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372342594] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:16:28,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909838075] [2024-11-28 04:16:28,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:28,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:28,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:16:28,005 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:16:28,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:16:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:28,832 INFO L256 TraceCheckSpWp]: Trace formula consists of 1183 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:16:28,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:16:28,878 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 04:16:28,879 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:16:28,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909838075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:16:28,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:16:28,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-28 04:16:28,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729968320] [2024-11-28 04:16:28,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:16:28,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:16:28,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:28,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:16:28,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:16:28,881 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) [2024-11-28 04:16:28,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:28,932 INFO L93 Difference]: Finished difference Result 882 states and 1149 transitions. [2024-11-28 04:16:28,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:16:28,933 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 [2024-11-28 04:16:28,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:28,938 INFO L225 Difference]: With dead ends: 882 [2024-11-28 04:16:28,938 INFO L226 Difference]: Without dead ends: 881 [2024-11-28 04:16:28,939 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 [2024-11-28 04:16:28,940 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 [2024-11-28 04:16:28,940 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] [2024-11-28 04:16:28,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-11-28 04:16:28,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 881. [2024-11-28 04:16:28,974 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) [2024-11-28 04:16:28,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1146 transitions. [2024-11-28 04:16:28,980 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1146 transitions. Word has length 86 [2024-11-28 04:16:28,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:28,980 INFO L471 AbstractCegarLoop]: Abstraction has 881 states and 1146 transitions. [2024-11-28 04:16:28,980 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) [2024-11-28 04:16:28,980 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1146 transitions. [2024-11-28 04:16:28,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 04:16:28,981 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:28,981 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] [2024-11-28 04:16:28,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:16:29,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:29,182 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)] === [2024-11-28 04:16:29,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:29,183 INFO L85 PathProgramCache]: Analyzing trace with hash -209298917, now seen corresponding path program 1 times [2024-11-28 04:16:29,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:29,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91210556] [2024-11-28 04:16:29,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:29,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:29,533 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 04:16:29,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:29,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91210556] [2024-11-28 04:16:29,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91210556] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:16:29,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417815501] [2024-11-28 04:16:29,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:29,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:29,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:16:29,535 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:16:29,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:16:30,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:30,243 INFO L256 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:16:30,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:16:30,283 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 04:16:30,283 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:16:30,405 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 04:16:30,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417815501] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:16:30,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:16:30,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-28 04:16:30,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776177441] [2024-11-28 04:16:30,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:16:30,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:16:30,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:30,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:16:30,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:16:30,409 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) [2024-11-28 04:16:30,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:30,489 INFO L93 Difference]: Finished difference Result 899 states and 1173 transitions. [2024-11-28 04:16:30,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:16:30,490 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 [2024-11-28 04:16:30,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:30,497 INFO L225 Difference]: With dead ends: 899 [2024-11-28 04:16:30,498 INFO L226 Difference]: Without dead ends: 872 [2024-11-28 04:16:30,499 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 [2024-11-28 04:16:30,499 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 [2024-11-28 04:16:30,499 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] [2024-11-28 04:16:30,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2024-11-28 04:16:30,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 852. [2024-11-28 04:16:30,535 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) [2024-11-28 04:16:30,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1112 transitions. [2024-11-28 04:16:30,540 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1112 transitions. Word has length 87 [2024-11-28 04:16:30,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:30,541 INFO L471 AbstractCegarLoop]: Abstraction has 852 states and 1112 transitions. [2024-11-28 04:16:30,541 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) [2024-11-28 04:16:30,541 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1112 transitions. [2024-11-28 04:16:30,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 04:16:30,544 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:30,544 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] [2024-11-28 04:16:30,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 04:16:30,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:30,744 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)] === [2024-11-28 04:16:30,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:30,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1424176286, now seen corresponding path program 1 times [2024-11-28 04:16:30,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:30,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421213404] [2024-11-28 04:16:30,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:30,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:30,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:31,086 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 04:16:31,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:31,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421213404] [2024-11-28 04:16:31,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421213404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:16:31,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:16:31,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:16:31,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322029378] [2024-11-28 04:16:31,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:16:31,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:16:31,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:31,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:16:31,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:16:31,088 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) [2024-11-28 04:16:32,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:16:32,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:32,457 INFO L93 Difference]: Finished difference Result 2396 states and 3130 transitions. [2024-11-28 04:16:32,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:16:32,458 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 [2024-11-28 04:16:32,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:32,468 INFO L225 Difference]: With dead ends: 2396 [2024-11-28 04:16:32,468 INFO L226 Difference]: Without dead ends: 1547 [2024-11-28 04:16:32,471 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 [2024-11-28 04:16:32,472 INFO L435 NwaCegarLoop]: 629 mSDtfsCounter, 478 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:16:32,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 1105 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:16:32,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2024-11-28 04:16:32,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1544. [2024-11-28 04:16:32,532 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) [2024-11-28 04:16:32,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 2000 transitions. [2024-11-28 04:16:32,542 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 2000 transitions. Word has length 95 [2024-11-28 04:16:32,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:32,542 INFO L471 AbstractCegarLoop]: Abstraction has 1544 states and 2000 transitions. [2024-11-28 04:16:32,543 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) [2024-11-28 04:16:32,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 2000 transitions. [2024-11-28 04:16:32,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-28 04:16:32,548 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:32,548 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] [2024-11-28 04:16:32,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:16:32,549 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)] === [2024-11-28 04:16:32,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:32,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1270452131, now seen corresponding path program 1 times [2024-11-28 04:16:32,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:32,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685486998] [2024-11-28 04:16:32,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:32,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:32,895 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 04:16:32,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:32,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685486998] [2024-11-28 04:16:32,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685486998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:16:32,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:16:32,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:16:32,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028413038] [2024-11-28 04:16:32,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:16:32,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:16:32,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:32,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:16:32,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:16:32,897 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) [2024-11-28 04:16:32,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:32,972 INFO L93 Difference]: Finished difference Result 3121 states and 4073 transitions. [2024-11-28 04:16:32,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:16:32,972 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 [2024-11-28 04:16:32,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:32,982 INFO L225 Difference]: With dead ends: 3121 [2024-11-28 04:16:32,982 INFO L226 Difference]: Without dead ends: 1580 [2024-11-28 04:16:32,987 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 [2024-11-28 04:16:32,988 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 [2024-11-28 04:16:32,988 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] [2024-11-28 04:16:32,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2024-11-28 04:16:33,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1572. [2024-11-28 04:16:33,059 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) [2024-11-28 04:16:33,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 2032 transitions. [2024-11-28 04:16:33,069 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 2032 transitions. Word has length 100 [2024-11-28 04:16:33,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:33,070 INFO L471 AbstractCegarLoop]: Abstraction has 1572 states and 2032 transitions. [2024-11-28 04:16:33,070 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) [2024-11-28 04:16:33,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 2032 transitions. [2024-11-28 04:16:33,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 04:16:33,074 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:33,074 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] [2024-11-28 04:16:33,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:16:33,075 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)] === [2024-11-28 04:16:33,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:33,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1799654899, now seen corresponding path program 1 times [2024-11-28 04:16:33,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:33,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026923449] [2024-11-28 04:16:33,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:33,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:33,408 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 04:16:33,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:33,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026923449] [2024-11-28 04:16:33,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026923449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:16:33,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:16:33,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:16:33,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045680805] [2024-11-28 04:16:33,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:16:33,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:16:33,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:33,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:16:33,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:16:33,410 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) [2024-11-28 04:16:33,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:33,515 INFO L93 Difference]: Finished difference Result 2413 states and 3107 transitions. [2024-11-28 04:16:33,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:16:33,516 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 [2024-11-28 04:16:33,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:33,528 INFO L225 Difference]: With dead ends: 2413 [2024-11-28 04:16:33,529 INFO L226 Difference]: Without dead ends: 2411 [2024-11-28 04:16:33,530 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 [2024-11-28 04:16:33,531 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 [2024-11-28 04:16:33,532 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] [2024-11-28 04:16:33,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2411 states. [2024-11-28 04:16:33,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2411 to 2409. [2024-11-28 04:16:33,637 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) [2024-11-28 04:16:33,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2409 states to 2409 states and 3103 transitions. [2024-11-28 04:16:33,653 INFO L78 Accepts]: Start accepts. Automaton has 2409 states and 3103 transitions. Word has length 99 [2024-11-28 04:16:33,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:33,653 INFO L471 AbstractCegarLoop]: Abstraction has 2409 states and 3103 transitions. [2024-11-28 04:16:33,653 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) [2024-11-28 04:16:33,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2409 states and 3103 transitions. [2024-11-28 04:16:33,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 04:16:33,658 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:33,658 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] [2024-11-28 04:16:33,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:16:33,659 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)] === [2024-11-28 04:16:33,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:33,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1015366951, now seen corresponding path program 1 times [2024-11-28 04:16:33,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:33,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596107072] [2024-11-28 04:16:33,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:33,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:33,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:34,063 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 04:16:34,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:34,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596107072] [2024-11-28 04:16:34,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596107072] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:16:34,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699011675] [2024-11-28 04:16:34,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:34,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:34,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:16:34,066 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:16:34,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:16:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:34,890 INFO L256 TraceCheckSpWp]: Trace formula consists of 1362 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:16:34,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:16:34,932 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-28 04:16:34,932 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:16:34,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699011675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:16:34,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:16:34,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2024-11-28 04:16:34,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796541140] [2024-11-28 04:16:34,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:16:34,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:16:34,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:34,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:16:34,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:16:34,934 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) [2024-11-28 04:16:35,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:35,054 INFO L93 Difference]: Finished difference Result 4730 states and 6104 transitions. [2024-11-28 04:16:35,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:16:35,055 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 [2024-11-28 04:16:35,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:35,069 INFO L225 Difference]: With dead ends: 4730 [2024-11-28 04:16:35,069 INFO L226 Difference]: Without dead ends: 2429 [2024-11-28 04:16:35,076 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 [2024-11-28 04:16:35,077 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 [2024-11-28 04:16:35,077 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] [2024-11-28 04:16:35,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2429 states. [2024-11-28 04:16:35,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2429 to 2419. [2024-11-28 04:16:35,181 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) [2024-11-28 04:16:35,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2419 states to 2419 states and 3113 transitions. [2024-11-28 04:16:35,195 INFO L78 Accepts]: Start accepts. Automaton has 2419 states and 3113 transitions. Word has length 107 [2024-11-28 04:16:35,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:35,195 INFO L471 AbstractCegarLoop]: Abstraction has 2419 states and 3113 transitions. [2024-11-28 04:16:35,195 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) [2024-11-28 04:16:35,195 INFO L276 IsEmpty]: Start isEmpty. Operand 2419 states and 3113 transitions. [2024-11-28 04:16:35,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-28 04:16:35,198 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:35,198 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] [2024-11-28 04:16:35,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 04:16:35,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 04:16:35,399 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)] === [2024-11-28 04:16:35,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:35,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1399731865, now seen corresponding path program 1 times [2024-11-28 04:16:35,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:35,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171588957] [2024-11-28 04:16:35,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:35,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:35,834 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-28 04:16:35,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:35,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171588957] [2024-11-28 04:16:35,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171588957] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:16:35,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194384631] [2024-11-28 04:16:35,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:35,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:35,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:16:35,837 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:16:35,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:16:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:36,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 1349 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:16:36,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:16:36,756 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-28 04:16:36,756 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:16:36,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194384631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:16:36,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:16:36,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-28 04:16:36,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102200550] [2024-11-28 04:16:36,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:16:36,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:16:36,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:36,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:16:36,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:16:36,759 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) [2024-11-28 04:16:36,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:36,854 INFO L93 Difference]: Finished difference Result 2443 states and 3149 transitions. [2024-11-28 04:16:36,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:16:36,855 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 [2024-11-28 04:16:36,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:36,869 INFO L225 Difference]: With dead ends: 2443 [2024-11-28 04:16:36,869 INFO L226 Difference]: Without dead ends: 2442 [2024-11-28 04:16:36,871 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 [2024-11-28 04:16:36,872 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 [2024-11-28 04:16:36,872 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] [2024-11-28 04:16:36,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2024-11-28 04:16:36,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2418. [2024-11-28 04:16:36,979 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) [2024-11-28 04:16:36,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3107 transitions. [2024-11-28 04:16:36,995 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3107 transitions. Word has length 106 [2024-11-28 04:16:36,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:36,995 INFO L471 AbstractCegarLoop]: Abstraction has 2418 states and 3107 transitions. [2024-11-28 04:16:36,996 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) [2024-11-28 04:16:36,996 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3107 transitions. [2024-11-28 04:16:36,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 04:16:36,998 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:36,998 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] [2024-11-28 04:16:37,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 04:16:37,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 04:16:37,199 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)] === [2024-11-28 04:16:37,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:37,200 INFO L85 PathProgramCache]: Analyzing trace with hash -442014801, now seen corresponding path program 1 times [2024-11-28 04:16:37,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:37,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804798796] [2024-11-28 04:16:37,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:37,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:37,575 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-28 04:16:37,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:37,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804798796] [2024-11-28 04:16:37,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804798796] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:16:37,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542827106] [2024-11-28 04:16:37,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:37,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:37,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:16:37,578 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:16:37,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:16:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:38,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 1350 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:16:38,443 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:16:38,488 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-28 04:16:38,488 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:16:38,603 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-28 04:16:38,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542827106] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:16:38,604 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:16:38,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-28 04:16:38,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037013135] [2024-11-28 04:16:38,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:16:38,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:16:38,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:38,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:16:38,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:16:38,606 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) [2024-11-28 04:16:38,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:38,706 INFO L93 Difference]: Finished difference Result 2502 states and 3233 transitions. [2024-11-28 04:16:38,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:16:38,706 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 [2024-11-28 04:16:38,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:38,721 INFO L225 Difference]: With dead ends: 2502 [2024-11-28 04:16:38,721 INFO L226 Difference]: Without dead ends: 2501 [2024-11-28 04:16:38,722 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 [2024-11-28 04:16:38,723 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 [2024-11-28 04:16:38,723 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] [2024-11-28 04:16:38,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2501 states. [2024-11-28 04:16:38,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2501 to 2381. [2024-11-28 04:16:38,826 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) [2024-11-28 04:16:38,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 3059 transitions. [2024-11-28 04:16:38,838 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 3059 transitions. Word has length 107 [2024-11-28 04:16:38,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:38,839 INFO L471 AbstractCegarLoop]: Abstraction has 2381 states and 3059 transitions. [2024-11-28 04:16:38,839 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) [2024-11-28 04:16:38,839 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 3059 transitions. [2024-11-28 04:16:38,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-28 04:16:38,842 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:38,842 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] [2024-11-28 04:16:38,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 04:16:39,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 04:16:39,044 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)] === [2024-11-28 04:16:39,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:39,044 INFO L85 PathProgramCache]: Analyzing trace with hash -2067496903, now seen corresponding path program 1 times [2024-11-28 04:16:39,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:39,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690916078] [2024-11-28 04:16:39,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:39,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:39,439 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-28 04:16:39,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:39,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690916078] [2024-11-28 04:16:39,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690916078] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:16:39,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300633392] [2024-11-28 04:16:39,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:39,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:39,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:16:39,442 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:16:39,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:16:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:40,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 1301 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:16:40,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:16:40,560 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-28 04:16:40,561 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:16:40,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300633392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:16:40,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:16:40,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-28 04:16:40,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197795572] [2024-11-28 04:16:40,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:16:40,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:16:40,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:40,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:16:40,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:16:40,563 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) [2024-11-28 04:16:41,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:41,825 INFO L93 Difference]: Finished difference Result 3103 states and 3989 transitions. [2024-11-28 04:16:41,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:16:41,826 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 [2024-11-28 04:16:41,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:41,843 INFO L225 Difference]: With dead ends: 3103 [2024-11-28 04:16:41,843 INFO L226 Difference]: Without dead ends: 3101 [2024-11-28 04:16:41,845 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 [2024-11-28 04:16:41,846 INFO L435 NwaCegarLoop]: 997 mSDtfsCounter, 958 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:16:41,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 1345 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:16:41,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3101 states. [2024-11-28 04:16:41,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3101 to 2379. [2024-11-28 04:16:41,962 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) [2024-11-28 04:16:41,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 3055 transitions. [2024-11-28 04:16:41,973 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 3055 transitions. Word has length 112 [2024-11-28 04:16:41,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:41,974 INFO L471 AbstractCegarLoop]: Abstraction has 2379 states and 3055 transitions. [2024-11-28 04:16:41,974 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) [2024-11-28 04:16:41,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 3055 transitions. [2024-11-28 04:16:41,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-28 04:16:41,978 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:41,978 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] [2024-11-28 04:16:41,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 04:16:42,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:42,179 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)] === [2024-11-28 04:16:42,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:42,179 INFO L85 PathProgramCache]: Analyzing trace with hash 332106150, now seen corresponding path program 1 times [2024-11-28 04:16:42,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:42,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364618895] [2024-11-28 04:16:42,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:42,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:42,562 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-28 04:16:42,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:42,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364618895] [2024-11-28 04:16:42,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364618895] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:16:42,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662687832] [2024-11-28 04:16:42,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:42,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:42,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:16:42,565 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:16:42,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:16:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:43,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 1302 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:16:43,472 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:16:43,699 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-28 04:16:43,700 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:16:43,905 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-28 04:16:43,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662687832] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:16:43,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:16:43,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-28 04:16:43,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023393671] [2024-11-28 04:16:43,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:16:43,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:16:43,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:43,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:16:43,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:16:43,908 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) [2024-11-28 04:16:45,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:45,854 INFO L93 Difference]: Finished difference Result 4647 states and 5978 transitions. [2024-11-28 04:16:45,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:16:45,855 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 [2024-11-28 04:16:45,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:45,884 INFO L225 Difference]: With dead ends: 4647 [2024-11-28 04:16:45,884 INFO L226 Difference]: Without dead ends: 4645 [2024-11-28 04:16:45,887 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 [2024-11-28 04:16:45,887 INFO L435 NwaCegarLoop]: 528 mSDtfsCounter, 2737 mSDsluCounter, 1429 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:16:45,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2737 Valid, 1957 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:16:45,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4645 states. [2024-11-28 04:16:46,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4645 to 3923. [2024-11-28 04:16:46,121 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) [2024-11-28 04:16:46,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3923 states to 3923 states and 5044 transitions. [2024-11-28 04:16:46,138 INFO L78 Accepts]: Start accepts. Automaton has 3923 states and 5044 transitions. Word has length 113 [2024-11-28 04:16:46,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:46,138 INFO L471 AbstractCegarLoop]: Abstraction has 3923 states and 5044 transitions. [2024-11-28 04:16:46,139 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) [2024-11-28 04:16:46,139 INFO L276 IsEmpty]: Start isEmpty. Operand 3923 states and 5044 transitions. [2024-11-28 04:16:46,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 04:16:46,145 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:46,145 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] [2024-11-28 04:16:46,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 04:16:46,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:46,346 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)] === [2024-11-28 04:16:46,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:46,346 INFO L85 PathProgramCache]: Analyzing trace with hash -759692976, now seen corresponding path program 1 times [2024-11-28 04:16:46,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:46,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239392571] [2024-11-28 04:16:46,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:46,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:46,656 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-28 04:16:46,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:46,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239392571] [2024-11-28 04:16:46,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239392571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:16:46,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:16:46,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:16:46,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584178308] [2024-11-28 04:16:46,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:16:46,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:16:46,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:46,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:16:46,658 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:16:46,658 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) [2024-11-28 04:16:47,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:47,701 INFO L93 Difference]: Finished difference Result 7524 states and 9694 transitions. [2024-11-28 04:16:47,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:16:47,701 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 [2024-11-28 04:16:47,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:47,731 INFO L225 Difference]: With dead ends: 7524 [2024-11-28 04:16:47,731 INFO L226 Difference]: Without dead ends: 3711 [2024-11-28 04:16:47,740 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 [2024-11-28 04:16:47,741 INFO L435 NwaCegarLoop]: 966 mSDtfsCounter, 471 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:16:47,742 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 1447 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:16:47,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3711 states. [2024-11-28 04:16:47,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3711 to 3709. [2024-11-28 04:16:47,918 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) [2024-11-28 04:16:47,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3709 states to 3709 states and 4742 transitions. [2024-11-28 04:16:47,934 INFO L78 Accepts]: Start accepts. Automaton has 3709 states and 4742 transitions. Word has length 135 [2024-11-28 04:16:47,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:47,935 INFO L471 AbstractCegarLoop]: Abstraction has 3709 states and 4742 transitions. [2024-11-28 04:16:47,935 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) [2024-11-28 04:16:47,935 INFO L276 IsEmpty]: Start isEmpty. Operand 3709 states and 4742 transitions. [2024-11-28 04:16:47,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-28 04:16:47,945 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:47,945 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] [2024-11-28 04:16:47,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 04:16:47,946 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)] === [2024-11-28 04:16:47,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:47,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1293113351, now seen corresponding path program 1 times [2024-11-28 04:16:47,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:47,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729656361] [2024-11-28 04:16:47,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:47,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:48,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:48,318 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-11-28 04:16:48,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:48,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729656361] [2024-11-28 04:16:48,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729656361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:16:48,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:16:48,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:16:48,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491841754] [2024-11-28 04:16:48,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:16:48,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:16:48,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:48,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:16:48,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:16:48,320 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) [2024-11-28 04:16:49,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:49,414 INFO L93 Difference]: Finished difference Result 7416 states and 9481 transitions. [2024-11-28 04:16:49,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:16:49,415 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 [2024-11-28 04:16:49,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:49,432 INFO L225 Difference]: With dead ends: 7416 [2024-11-28 04:16:49,432 INFO L226 Difference]: Without dead ends: 3045 [2024-11-28 04:16:49,439 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 [2024-11-28 04:16:49,441 INFO L435 NwaCegarLoop]: 581 mSDtfsCounter, 422 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:16:49,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 1095 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:16:49,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3045 states. [2024-11-28 04:16:49,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3045 to 3044. [2024-11-28 04:16:49,580 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) [2024-11-28 04:16:49,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3044 states to 3044 states and 3870 transitions. [2024-11-28 04:16:49,593 INFO L78 Accepts]: Start accepts. Automaton has 3044 states and 3870 transitions. Word has length 228 [2024-11-28 04:16:49,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:49,594 INFO L471 AbstractCegarLoop]: Abstraction has 3044 states and 3870 transitions. [2024-11-28 04:16:49,594 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) [2024-11-28 04:16:49,594 INFO L276 IsEmpty]: Start isEmpty. Operand 3044 states and 3870 transitions. [2024-11-28 04:16:49,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-28 04:16:49,602 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:49,603 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] [2024-11-28 04:16:49,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 04:16:49,604 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)] === [2024-11-28 04:16:49,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:49,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1557760841, now seen corresponding path program 1 times [2024-11-28 04:16:49,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:49,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521752847] [2024-11-28 04:16:49,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:49,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:49,961 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-28 04:16:49,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:49,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521752847] [2024-11-28 04:16:49,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521752847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:16:49,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:16:49,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:16:49,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918752482] [2024-11-28 04:16:49,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:16:49,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:16:49,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:49,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:16:49,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:16:49,964 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) [2024-11-28 04:16:50,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:50,135 INFO L93 Difference]: Finished difference Result 6097 states and 7752 transitions. [2024-11-28 04:16:50,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:16:50,135 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 [2024-11-28 04:16:50,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:50,151 INFO L225 Difference]: With dead ends: 6097 [2024-11-28 04:16:50,151 INFO L226 Difference]: Without dead ends: 3050 [2024-11-28 04:16:50,158 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 [2024-11-28 04:16:50,158 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 [2024-11-28 04:16:50,159 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] [2024-11-28 04:16:50,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2024-11-28 04:16:50,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 3044. [2024-11-28 04:16:50,350 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) [2024-11-28 04:16:50,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3044 states to 3044 states and 3867 transitions. [2024-11-28 04:16:50,364 INFO L78 Accepts]: Start accepts. Automaton has 3044 states and 3867 transitions. Word has length 228 [2024-11-28 04:16:50,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:50,364 INFO L471 AbstractCegarLoop]: Abstraction has 3044 states and 3867 transitions. [2024-11-28 04:16:50,364 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) [2024-11-28 04:16:50,365 INFO L276 IsEmpty]: Start isEmpty. Operand 3044 states and 3867 transitions. [2024-11-28 04:16:50,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-28 04:16:50,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:50,372 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] [2024-11-28 04:16:50,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 04:16:50,372 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)] === [2024-11-28 04:16:50,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:50,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1080042104, now seen corresponding path program 1 times [2024-11-28 04:16:50,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:50,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690452196] [2024-11-28 04:16:50,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:50,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:50,991 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2024-11-28 04:16:50,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:50,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690452196] [2024-11-28 04:16:50,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690452196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:16:50,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:16:50,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:16:50,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030169903] [2024-11-28 04:16:50,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:16:50,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:16:50,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:50,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:16:50,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:16:50,993 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) [2024-11-28 04:16:51,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:51,188 INFO L93 Difference]: Finished difference Result 6000 states and 7634 transitions. [2024-11-28 04:16:51,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:16:51,189 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 [2024-11-28 04:16:51,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:51,204 INFO L225 Difference]: With dead ends: 6000 [2024-11-28 04:16:51,204 INFO L226 Difference]: Without dead ends: 3048 [2024-11-28 04:16:51,211 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 [2024-11-28 04:16:51,213 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 [2024-11-28 04:16:51,213 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] [2024-11-28 04:16:51,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3048 states. [2024-11-28 04:16:51,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3048 to 3048. [2024-11-28 04:16:51,430 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) [2024-11-28 04:16:51,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3048 states to 3048 states and 3870 transitions. [2024-11-28 04:16:51,444 INFO L78 Accepts]: Start accepts. Automaton has 3048 states and 3870 transitions. Word has length 237 [2024-11-28 04:16:51,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:51,444 INFO L471 AbstractCegarLoop]: Abstraction has 3048 states and 3870 transitions. [2024-11-28 04:16:51,445 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) [2024-11-28 04:16:51,445 INFO L276 IsEmpty]: Start isEmpty. Operand 3048 states and 3870 transitions. [2024-11-28 04:16:51,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-28 04:16:51,452 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:51,453 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] [2024-11-28 04:16:51,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 04:16:51,453 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)] === [2024-11-28 04:16:51,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:51,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1854049015, now seen corresponding path program 1 times [2024-11-28 04:16:51,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:51,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522103172] [2024-11-28 04:16:51,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:16:51,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:16:51,875 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-28 04:16:51,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:51,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522103172] [2024-11-28 04:16:51,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522103172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:16:51,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:16:51,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:16:51,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636586951] [2024-11-28 04:16:51,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:16:51,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:16:51,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:51,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:16:51,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:16:51,878 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) [2024-11-28 04:16:52,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:16:52,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:52,956 INFO L93 Difference]: Finished difference Result 3168 states and 4006 transitions. [2024-11-28 04:16:52,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:16:52,957 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 [2024-11-28 04:16:52,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:52,962 INFO L225 Difference]: With dead ends: 3168 [2024-11-28 04:16:52,962 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 04:16:52,968 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 [2024-11-28 04:16:52,968 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:16:52,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 205 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:16:52,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 04:16:52,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 04:16:52,969 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) [2024-11-28 04:16:52,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:16:52,973 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 258 [2024-11-28 04:16:52,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:52,973 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:16:52,974 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) [2024-11-28 04:16:52,974 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:16:52,974 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 04:16:52,977 INFO L782 garLoopResultBuilder]: Registering result SAFE for location uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-11-28 04:16:52,978 INFO L782 garLoopResultBuilder]: Registering result SAFE for location uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-11-28 04:16:52,978 INFO L782 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-28 04:16:52,978 INFO L782 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-28 04:16:52,978 INFO L782 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-11-28 04:16:52,978 INFO L782 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-11-28 04:16:52,978 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-28 04:16:52,979 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-28 04:16:52,979 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-28 04:16:52,979 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-28 04:16:52,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 04:16:52,982 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] [2024-11-28 04:16:52,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 04:17:01,076 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:17:01,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:17:01 BoogieIcfgContainer [2024-11-28 04:17:01,092 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:17:01,092 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:17:01,093 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:17:01,093 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:17:01,094 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:16:11" (3/4) ... [2024-11-28 04:17:01,096 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:17:01,106 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_idx_inc [2024-11-28 04:17:01,106 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __raw_spin_lock_init [2024-11-28 04:17:01,106 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_exit [2024-11-28 04:17:01,106 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure uspace_ring_map [2024-11-28 04:17:01,106 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-11-28 04:17:01,106 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_destroy [2024-11-28 04:17:01,106 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_write [2024-11-28 04:17:01,106 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_init [2024-11-28 04:17:01,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-11-28 04:17:01,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_del [2024-11-28 04:17:01,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_free [2024-11-28 04:17:01,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_head_event [2024-11-28 04:17:01,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_poll [2024-11-28 04:17:01,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_unmap_user_pages [2024-11-28 04:17:01,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _raw_spin_lock_irqsave [2024-11-28 04:17:01,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_put [2024-11-28 04:17:01,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_64 [2024-11-28 04:17:01,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~int [2024-11-28 04:17:01,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2024-11-28 04:17:01,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_open [2024-11-28 04:17:01,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_lookup [2024-11-28 04:17:01,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_mmap [2024-11-28 04:17:01,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_release_buffers [2024-11-28 04:17:01,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_destroy [2024-11-28 04:17:01,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spin_unlock_irqrestore [2024-11-28 04:17:01,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-11-28 04:17:01,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure destroy_workqueue [2024-11-28 04:17:01,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _copy_from_user [2024-11-28 04:17:01,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_add [2024-11-28 04:17:01,108 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_to_host [2024-11-28 04:17:01,108 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spinlock_check [2024-11-28 04:17:01,126 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 159 nodes and edges [2024-11-28 04:17:01,128 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 62 nodes and edges [2024-11-28 04:17:01,130 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2024-11-28 04:17:01,132 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-28 04:17:01,134 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-28 04:17:01,136 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:17:01,368 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:17:01,371 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:17:01,371 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:17:01,372 INFO L158 Benchmark]: Toolchain (without parser) took 55690.27ms. Allocated memory was 117.4MB in the beginning and 310.4MB in the end (delta: 192.9MB). Free memory was 83.1MB in the beginning and 123.2MB in the end (delta: -40.1MB). Peak memory consumption was 150.5MB. Max. memory is 16.1GB. [2024-11-28 04:17:01,372 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 167.8MB. Free memory is still 102.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:17:01,372 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2244.17ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 83.1MB in the beginning and 260.2MB in the end (delta: -177.1MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. [2024-11-28 04:17:01,373 INFO L158 Benchmark]: Boogie Procedure Inliner took 140.19ms. Allocated memory is still 352.3MB. Free memory was 260.2MB in the beginning and 251.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:17:01,373 INFO L158 Benchmark]: Boogie Preprocessor took 319.33ms. Allocated memory is still 352.3MB. Free memory was 251.3MB in the beginning and 223.3MB in the end (delta: 28.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-28 04:17:01,373 INFO L158 Benchmark]: RCFGBuilder took 2951.83ms. Allocated memory is still 352.3MB. Free memory was 223.3MB in the beginning and 246.4MB in the end (delta: -23.1MB). Peak memory consumption was 104.4MB. Max. memory is 16.1GB. [2024-11-28 04:17:01,373 INFO L158 Benchmark]: TraceAbstraction took 49749.04ms. Allocated memory was 352.3MB in the beginning and 310.4MB in the end (delta: -41.9MB). Free memory was 246.4MB in the beginning and 143.4MB in the end (delta: 103.0MB). Peak memory consumption was 208.4MB. Max. memory is 16.1GB. [2024-11-28 04:17:01,373 INFO L158 Benchmark]: Witness Printer took 278.77ms. Allocated memory is still 310.4MB. Free memory was 143.4MB in the beginning and 123.2MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:17:01,374 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 167.8MB. Free memory is still 102.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2244.17ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 83.1MB in the beginning and 260.2MB in the end (delta: -177.1MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 140.19ms. Allocated memory is still 352.3MB. Free memory was 260.2MB in the beginning and 251.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 319.33ms. Allocated memory is still 352.3MB. Free memory was 251.3MB in the beginning and 223.3MB in the end (delta: 28.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * RCFGBuilder took 2951.83ms. Allocated memory is still 352.3MB. Free memory was 223.3MB in the beginning and 246.4MB in the end (delta: -23.1MB). Peak memory consumption was 104.4MB. Max. memory is 16.1GB. * TraceAbstraction took 49749.04ms. Allocated memory was 352.3MB in the beginning and 310.4MB in the end (delta: -41.9MB). Free memory was 246.4MB in the beginning and 143.4MB in the end (delta: 103.0MB). Peak memory consumption was 208.4MB. Max. memory is 16.1GB. * Witness Printer took 278.77ms. Allocated memory is still 310.4MB. Free memory was 143.4MB in the beginning and 123.2MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 7332]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7332] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7545]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7545]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7600]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7600]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7627]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7627]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 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: 41.6s, OverallIterations: 25, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 16.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6752 SdHoareTripleChecker+Valid, 13.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6743 mSDsluCounter, 39212 SdHoareTripleChecker+Invalid, 12.4s 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, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1370 GetRequests, 1301 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s 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: 2.4s AutomataMinimizationTime, 25 MinimizatonAttempts, 1738 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 6.4s 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! [2024-11-28 04:17:01,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806d193-558e-4414-b2ea-304fda855ba7/bin/uautomizer-verify-aQ6SnzHsRB/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