./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/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_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya --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 0.2.4-dev-0e0057c [2023-11-28 20:31:34,966 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:31:35,030 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-28 20:31:35,034 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:31:35,035 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:31:35,059 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:31:35,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:31:35,060 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:31:35,061 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:31:35,061 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:31:35,062 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:31:35,062 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:31:35,063 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:31:35,063 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:31:35,064 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:31:35,064 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:31:35,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:31:35,065 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:31:35,066 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:31:35,066 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:31:35,067 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:31:35,068 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:31:35,068 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-28 20:31:35,068 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:31:35,069 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:31:35,069 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:31:35,070 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:31:35,070 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:31:35,070 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:31:35,071 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:31:35,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:31:35,072 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:31:35,072 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:31:35,072 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:31:35,072 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:31:35,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:31:35,073 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:31:35,073 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:31:35,073 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:31:35,073 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:31:35,074 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:31:35,074 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3b9005361fd0095f8dbb62f5fee3acdc88198cbc01de43b11979176397f6891 [2023-11-28 20:31:35,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:31:35,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:31:35,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:31:35,310 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:31:35,310 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:31:35,311 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2023-11-28 20:31:38,092 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:31:38,506 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:31:38,506 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2023-11-28 20:31:38,538 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/data/252eac27e/b01b9ecd85f44e6b948d26010044595d/FLAG67080c17f [2023-11-28 20:31:38,550 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/data/252eac27e/b01b9ecd85f44e6b948d26010044595d [2023-11-28 20:31:38,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:31:38,554 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:31:38,555 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:31:38,555 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:31:38,562 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:31:38,563 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:31:38" (1/1) ... [2023-11-28 20:31:38,564 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a866c1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:38, skipping insertion in model container [2023-11-28 20:31:38,564 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:31:38" (1/1) ... [2023-11-28 20:31:38,647 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:31:39,704 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:31:39,725 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:31:39,944 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7332] [2023-11-28 20:31:39,981 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:31:40,027 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:31:40,035 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:31:40,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:40 WrapperNode [2023-11-28 20:31:40,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:31:40,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:31:40,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:31:40,037 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:31:40,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:40" (1/1) ... [2023-11-28 20:31:40,091 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:40" (1/1) ... [2023-11-28 20:31:40,160 INFO L138 Inliner]: procedures = 188, calls = 607, calls flagged for inlining = 75, calls inlined = 50, statements flattened = 1308 [2023-11-28 20:31:40,160 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:31:40,161 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:31:40,161 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:31:40,162 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:31:40,173 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:40" (1/1) ... [2023-11-28 20:31:40,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:40" (1/1) ... [2023-11-28 20:31:40,188 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:40" (1/1) ... [2023-11-28 20:31:40,295 INFO L175 MemorySlicer]: Split 153 memory accesses to 8 slices as follows [2, 5, 31, 9, 65, 12, 21, 8]. 42 percent of accesses are in the largest equivalence class. The 54 initializations are split as follows [2, 0, 31, 9, 0, 12, 0, 0]. The 14 writes are split as follows [0, 0, 0, 0, 13, 0, 1, 0]. [2023-11-28 20:31:40,296 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:40" (1/1) ... [2023-11-28 20:31:40,296 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:40" (1/1) ... [2023-11-28 20:31:40,338 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:40" (1/1) ... [2023-11-28 20:31:40,345 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:40" (1/1) ... [2023-11-28 20:31:40,353 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:40" (1/1) ... [2023-11-28 20:31:40,362 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:40" (1/1) ... [2023-11-28 20:31:40,374 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:31:40,375 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:31:40,375 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:31:40,375 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:31:40,376 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:40" (1/1) ... [2023-11-28 20:31:40,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:31:40,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:31:40,403 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:31:40,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:31:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-28 20:31:40,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-28 20:31:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure uspace_ring_map [2023-11-28 20:31:40,482 INFO L138 BoogieDeclarations]: Found implementation of procedure uspace_ring_map [2023-11-28 20:31:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unmap_user_pages [2023-11-28 20:31:40,483 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unmap_user_pages [2023-11-28 20:31:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-28 20:31:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-28 20:31:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-28 20:31:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-28 20:31:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-28 20:31:40,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-28 20:31:40,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-28 20:31:40,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-28 20:31:40,484 INFO L130 BoogieDeclarations]: Found specification of procedure hash_64 [2023-11-28 20:31:40,484 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_64 [2023-11-28 20:31:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_release_buffers [2023-11-28 20:31:40,485 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_release_buffers [2023-11-28 20:31:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-28 20:31:40,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-28 20:31:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2023-11-28 20:31:40,485 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2023-11-28 20:31:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_write [2023-11-28 20:31:40,486 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_write [2023-11-28 20:31:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-28 20:31:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-28 20:31:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-28 20:31:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-28 20:31:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-28 20:31:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-28 20:31:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-28 20:31:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-28 20:31:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-28 20:31:40,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-28 20:31:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-28 20:31:40,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-28 20:31:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_open [2023-11-28 20:31:40,488 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_open [2023-11-28 20:31:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2023-11-28 20:31:40,488 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2023-11-28 20:31:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-28 20:31:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_to_host [2023-11-28 20:31:40,489 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_to_host [2023-11-28 20:31:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-28 20:31:40,489 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-28 20:31:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:31:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_idx_inc [2023-11-28 20:31:40,489 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_idx_inc [2023-11-28 20:31:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 20:31:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-28 20:31:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-28 20:31:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-28 20:31:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-28 20:31:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-28 20:31:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-28 20:31:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-28 20:31:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-28 20:31:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_head_event [2023-11-28 20:31:40,491 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_head_event [2023-11-28 20:31:40,491 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2023-11-28 20:31:40,491 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2023-11-28 20:31:40,491 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-28 20:31:40,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-28 20:31:40,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-28 20:31:40,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-28 20:31:40,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-28 20:31:40,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-28 20:31:40,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-28 20:31:40,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-28 20:31:40,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-28 20:31:40,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-28 20:31:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-28 20:31:40,493 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-28 20:31:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-11-28 20:31:40,493 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-11-28 20:31:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 20:31:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-28 20:31:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-28 20:31:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-28 20:31:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-28 20:31:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-28 20:31:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-28 20:31:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-28 20:31:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-28 20:31:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_exit [2023-11-28 20:31:40,494 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_exit [2023-11-28 20:31:40,495 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-28 20:31:40,495 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-28 20:31:40,495 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_destroy [2023-11-28 20:31:40,495 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_destroy [2023-11-28 20:31:40,495 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_init [2023-11-28 20:31:40,495 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_init [2023-11-28 20:31:40,496 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-28 20:31:40,496 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-28 20:31:40,496 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2023-11-28 20:31:40,496 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2023-11-28 20:31:40,496 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_poll [2023-11-28 20:31:40,496 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_poll [2023-11-28 20:31:40,496 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-28 20:31:40,496 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-28 20:31:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_lookup [2023-11-28 20:31:40,497 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_lookup [2023-11-28 20:31:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_mmap [2023-11-28 20:31:40,497 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_mmap [2023-11-28 20:31:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 20:31:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-28 20:31:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-28 20:31:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-28 20:31:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-28 20:31:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-28 20:31:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-28 20:31:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-28 20:31:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-28 20:31:40,498 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-28 20:31:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:31:40,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:31:40,834 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:31:40,836 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:31:41,723 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:31:41,876 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:31:41,877 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-28 20:31:41,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:31:41 BoogieIcfgContainer [2023-11-28 20:31:41,877 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:31:41,880 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:31:41,880 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:31:41,883 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:31:41,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:31:38" (1/3) ... [2023-11-28 20:31:41,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a84aab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:31:41, skipping insertion in model container [2023-11-28 20:31:41,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:40" (2/3) ... [2023-11-28 20:31:41,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a84aab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:31:41, skipping insertion in model container [2023-11-28 20:31:41,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:31:41" (3/3) ... [2023-11-28 20:31:41,886 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2023-11-28 20:31:41,904 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:31:41,904 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-28 20:31:41,958 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:31:41,965 INFO L357 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, mHoare=true, 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;@74df6382, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:31:41,965 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-28 20:31:41,971 INFO L276 IsEmpty]: Start isEmpty. Operand has 358 states, 233 states have (on average 1.4163090128755365) internal successors, (330), 250 states have internal predecessors, (330), 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) [2023-11-28 20:31:41,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-28 20:31:41,981 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:31:41,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:31:41,982 INFO L420 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)] === [2023-11-28 20:31:41,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:31:41,987 INFO L85 PathProgramCache]: Analyzing trace with hash 873690324, now seen corresponding path program 1 times [2023-11-28 20:31:41,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:31:41,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973402991] [2023-11-28 20:31:41,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:41,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:31:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:42,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:31:42,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:31:42,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973402991] [2023-11-28 20:31:42,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973402991] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:31:42,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:31:42,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:31:42,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563911677] [2023-11-28 20:31:42,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:31:42,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:31:42,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:31:42,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:31:42,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:31:42,371 INFO L87 Difference]: Start difference. First operand has 358 states, 233 states have (on average 1.4163090128755365) internal successors, (330), 250 states have internal predecessors, (330), 83 states have call successors, (83), 31 states have call predecessors, (83), 31 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2023-11-28 20:31:42,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:31:42,629 INFO L93 Difference]: Finished difference Result 800 states and 1123 transitions. [2023-11-28 20:31:42,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:31:42,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2023-11-28 20:31:42,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:31:42,645 INFO L225 Difference]: With dead ends: 800 [2023-11-28 20:31:42,645 INFO L226 Difference]: Without dead ends: 417 [2023-11-28 20:31:42,651 INFO L412 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 [2023-11-28 20:31:42,654 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 112 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:31:42,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 831 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:31:42,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2023-11-28 20:31:42,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 413. [2023-11-28 20:31:42,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 273 states have (on average 1.413919413919414) internal successors, (386), 289 states have internal predecessors, (386), 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) [2023-11-28 20:31:42,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 568 transitions. [2023-11-28 20:31:42,728 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 568 transitions. Word has length 12 [2023-11-28 20:31:42,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:31:42,728 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 568 transitions. [2023-11-28 20:31:42,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2023-11-28 20:31:42,729 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 568 transitions. [2023-11-28 20:31:42,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-28 20:31:42,730 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:31:42,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:31:42,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 20:31:42,731 INFO L420 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)] === [2023-11-28 20:31:42,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:31:42,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1524276052, now seen corresponding path program 1 times [2023-11-28 20:31:42,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:31:42,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176622021] [2023-11-28 20:31:42,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:42,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:31:42,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:42,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-28 20:31:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:42,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:31:42,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:31:42,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176622021] [2023-11-28 20:31:42,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176622021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:31:42,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:31:42,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:31:42,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161768615] [2023-11-28 20:31:42,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:31:42,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:31:42,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:31:42,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:31:42,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:31:42,885 INFO L87 Difference]: Start difference. First operand 413 states and 568 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-28 20:31:43,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:31:43,158 INFO L93 Difference]: Finished difference Result 1139 states and 1568 transitions. [2023-11-28 20:31:43,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:31:43,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 15 [2023-11-28 20:31:43,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:31:43,165 INFO L225 Difference]: With dead ends: 1139 [2023-11-28 20:31:43,165 INFO L226 Difference]: Without dead ends: 727 [2023-11-28 20:31:43,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:31:43,168 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 454 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:31:43,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 1070 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:31:43,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2023-11-28 20:31:43,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 708. [2023-11-28 20:31:43,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 479 states have (on average 1.407098121085595) internal successors, (674), 496 states have internal predecessors, (674), 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) [2023-11-28 20:31:43,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 981 transitions. [2023-11-28 20:31:43,231 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 981 transitions. Word has length 15 [2023-11-28 20:31:43,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:31:43,231 INFO L495 AbstractCegarLoop]: Abstraction has 708 states and 981 transitions. [2023-11-28 20:31:43,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-28 20:31:43,231 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 981 transitions. [2023-11-28 20:31:43,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-28 20:31:43,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:31:43,233 INFO L195 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] [2023-11-28 20:31:43,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 20:31:43,233 INFO L420 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)] === [2023-11-28 20:31:43,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:31:43,234 INFO L85 PathProgramCache]: Analyzing trace with hash 2038237972, now seen corresponding path program 1 times [2023-11-28 20:31:43,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:31:43,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633962135] [2023-11-28 20:31:43,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:43,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:31:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:43,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 20:31:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:43,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-28 20:31:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:43,392 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:31:43,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:31:43,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633962135] [2023-11-28 20:31:43,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633962135] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:31:43,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:31:43,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:31:43,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548979972] [2023-11-28 20:31:43,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:31:43,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:31:43,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:31:43,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:31:43,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:31:43,395 INFO L87 Difference]: Start difference. First operand 708 states and 981 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:31:44,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:31:44,240 INFO L93 Difference]: Finished difference Result 1691 states and 2402 transitions. [2023-11-28 20:31:44,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:31:44,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 3 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 32 [2023-11-28 20:31:44,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:31:44,249 INFO L225 Difference]: With dead ends: 1691 [2023-11-28 20:31:44,249 INFO L226 Difference]: Without dead ends: 978 [2023-11-28 20:31:44,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:31:44,254 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 217 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-28 20:31:44,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 1033 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-28 20:31:44,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2023-11-28 20:31:44,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 708. [2023-11-28 20:31:44,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 479 states have (on average 1.4029227557411275) internal successors, (672), 496 states have internal predecessors, (672), 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) [2023-11-28 20:31:44,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 979 transitions. [2023-11-28 20:31:44,336 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 979 transitions. Word has length 32 [2023-11-28 20:31:44,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:31:44,337 INFO L495 AbstractCegarLoop]: Abstraction has 708 states and 979 transitions. [2023-11-28 20:31:44,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:31:44,337 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 979 transitions. [2023-11-28 20:31:44,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-28 20:31:44,338 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:31:44,339 INFO L195 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] [2023-11-28 20:31:44,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-28 20:31:44,339 INFO L420 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)] === [2023-11-28 20:31:44,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:31:44,340 INFO L85 PathProgramCache]: Analyzing trace with hash 249142470, now seen corresponding path program 1 times [2023-11-28 20:31:44,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:31:44,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160397581] [2023-11-28 20:31:44,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:44,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:31:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:44,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 20:31:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:44,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:31:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:44,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-28 20:31:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:44,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 20:31:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:44,478 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:31:44,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:31:44,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160397581] [2023-11-28 20:31:44,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160397581] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:31:44,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:31:44,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:31:44,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016710294] [2023-11-28 20:31:44,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:31:44,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:31:44,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:31:44,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:31:44,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:31:44,481 INFO L87 Difference]: Start difference. First operand 708 states and 979 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 20:31:45,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:31:45,185 INFO L93 Difference]: Finished difference Result 1701 states and 2422 transitions. [2023-11-28 20:31:45,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:31:45,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (5), 2 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 35 [2023-11-28 20:31:45,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:31:45,192 INFO L225 Difference]: With dead ends: 1701 [2023-11-28 20:31:45,192 INFO L226 Difference]: Without dead ends: 994 [2023-11-28 20:31:45,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:31:45,196 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 218 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 20:31:45,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 765 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 20:31:45,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2023-11-28 20:31:45,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 716. [2023-11-28 20:31:45,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 487 states have (on average 1.4004106776180698) internal successors, (682), 504 states have internal predecessors, (682), 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) [2023-11-28 20:31:45,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 989 transitions. [2023-11-28 20:31:45,243 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 989 transitions. Word has length 35 [2023-11-28 20:31:45,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:31:45,243 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 989 transitions. [2023-11-28 20:31:45,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 20:31:45,244 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 989 transitions. [2023-11-28 20:31:45,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-28 20:31:45,245 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:31:45,245 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-28 20:31:45,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-28 20:31:45,246 INFO L420 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)] === [2023-11-28 20:31:45,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:31:45,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1669844679, now seen corresponding path program 1 times [2023-11-28 20:31:45,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:31:45,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9986607] [2023-11-28 20:31:45,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:45,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:31:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:45,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 20:31:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:45,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:31:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:45,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-28 20:31:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:45,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 20:31:45,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:45,430 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:31:45,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:31:45,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9986607] [2023-11-28 20:31:45,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9986607] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:31:45,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240884457] [2023-11-28 20:31:45,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:45,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:31:45,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:31:45,432 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:31:45,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-28 20:31:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:45,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:31:45,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:31:45,862 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:31:45,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:31:45,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240884457] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:31:45,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:31:45,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-11-28 20:31:45,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106244163] [2023-11-28 20:31:45,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:31:45,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:31:45,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:31:45,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:31:45,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:31:45,865 INFO L87 Difference]: Start difference. First operand 716 states and 989 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-11-28 20:31:46,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:31:46,051 INFO L93 Difference]: Finished difference Result 724 states and 1001 transitions. [2023-11-28 20:31:46,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:31:46,052 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 39 [2023-11-28 20:31:46,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:31:46,058 INFO L225 Difference]: With dead ends: 724 [2023-11-28 20:31:46,058 INFO L226 Difference]: Without dead ends: 723 [2023-11-28 20:31:46,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:31:46,059 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 9 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:31:46,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1227 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:31:46,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2023-11-28 20:31:46,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 715. [2023-11-28 20:31:46,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 487 states have (on average 1.3963039014373717) internal successors, (680), 503 states have internal predecessors, (680), 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) [2023-11-28 20:31:46,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 987 transitions. [2023-11-28 20:31:46,113 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 987 transitions. Word has length 39 [2023-11-28 20:31:46,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:31:46,114 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 987 transitions. [2023-11-28 20:31:46,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-11-28 20:31:46,114 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 987 transitions. [2023-11-28 20:31:46,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-28 20:31:46,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:31:46,115 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-28 20:31:46,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-28 20:31:46,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:31:46,323 INFO L420 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)] === [2023-11-28 20:31:46,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:31:46,323 INFO L85 PathProgramCache]: Analyzing trace with hash -225577026, now seen corresponding path program 1 times [2023-11-28 20:31:46,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:31:46,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472303402] [2023-11-28 20:31:46,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:46,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:31:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:46,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 20:31:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:46,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:31:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:46,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-28 20:31:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:46,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 20:31:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:46,528 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:31:46,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:31:46,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472303402] [2023-11-28 20:31:46,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472303402] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:31:46,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898531514] [2023-11-28 20:31:46,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:46,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:31:46,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:31:46,531 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:31:46,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-28 20:31:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:46,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:31:46,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:31:46,895 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:31:46,895 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:31:46,936 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:31:46,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898531514] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:31:46,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:31:46,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2023-11-28 20:31:46,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768154124] [2023-11-28 20:31:46,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:31:46,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 20:31:46,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:31:46,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 20:31:46,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:31:46,939 INFO L87 Difference]: Start difference. First operand 715 states and 987 transitions. Second operand has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 20:31:47,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:31:47,734 INFO L93 Difference]: Finished difference Result 1019 states and 1474 transitions. [2023-11-28 20:31:47,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 20:31:47,735 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 40 [2023-11-28 20:31:47,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:31:47,741 INFO L225 Difference]: With dead ends: 1019 [2023-11-28 20:31:47,741 INFO L226 Difference]: Without dead ends: 1018 [2023-11-28 20:31:47,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:31:47,743 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 239 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-28 20:31:47,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1037 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-28 20:31:47,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2023-11-28 20:31:47,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 708. [2023-11-28 20:31:47,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 481 states have (on average 1.392931392931393) internal successors, (670), 496 states have internal predecessors, (670), 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) [2023-11-28 20:31:47,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 977 transitions. [2023-11-28 20:31:47,790 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 977 transitions. Word has length 40 [2023-11-28 20:31:47,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:31:47,790 INFO L495 AbstractCegarLoop]: Abstraction has 708 states and 977 transitions. [2023-11-28 20:31:47,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 20:31:47,790 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 977 transitions. [2023-11-28 20:31:47,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-28 20:31:47,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:31:47,792 INFO L195 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] [2023-11-28 20:31:47,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-28 20:31:47,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-28 20:31:47,999 INFO L420 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)] === [2023-11-28 20:31:47,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:31:47,999 INFO L85 PathProgramCache]: Analyzing trace with hash 788472231, now seen corresponding path program 1 times [2023-11-28 20:31:48,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:31:48,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267637135] [2023-11-28 20:31:48,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:48,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:31:48,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:48,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 20:31:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:48,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:31:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:48,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:31:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:48,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-28 20:31:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:48,110 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-28 20:31:48,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:31:48,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267637135] [2023-11-28 20:31:48,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267637135] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:31:48,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:31:48,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:31:48,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256692560] [2023-11-28 20:31:48,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:31:48,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:31:48,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:31:48,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:31:48,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:31:48,112 INFO L87 Difference]: Start difference. First operand 708 states and 977 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 20:31:48,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:31:48,785 INFO L93 Difference]: Finished difference Result 1694 states and 2408 transitions. [2023-11-28 20:31:48,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:31:48,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (5), 2 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 [2023-11-28 20:31:48,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:31:48,793 INFO L225 Difference]: With dead ends: 1694 [2023-11-28 20:31:48,793 INFO L226 Difference]: Without dead ends: 987 [2023-11-28 20:31:48,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:31:48,797 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 218 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 20:31:48,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 763 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 20:31:48,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2023-11-28 20:31:48,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 717. [2023-11-28 20:31:48,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 490 states have (on average 1.3857142857142857) internal successors, (679), 505 states have internal predecessors, (679), 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) [2023-11-28 20:31:48,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 986 transitions. [2023-11-28 20:31:48,845 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 986 transitions. Word has length 43 [2023-11-28 20:31:48,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:31:48,846 INFO L495 AbstractCegarLoop]: Abstraction has 717 states and 986 transitions. [2023-11-28 20:31:48,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 20:31:48,846 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 986 transitions. [2023-11-28 20:31:48,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-28 20:31:48,847 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:31:48,847 INFO L195 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] [2023-11-28 20:31:48,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-28 20:31:48,847 INFO L420 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)] === [2023-11-28 20:31:48,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:31:48,848 INFO L85 PathProgramCache]: Analyzing trace with hash 200238643, now seen corresponding path program 1 times [2023-11-28 20:31:48,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:31:48,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637350971] [2023-11-28 20:31:48,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:48,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:31:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:48,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 20:31:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:48,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:31:48,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:48,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:31:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:48,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-28 20:31:48,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:48,994 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-28 20:31:48,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:31:48,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637350971] [2023-11-28 20:31:48,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637350971] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:31:48,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370599502] [2023-11-28 20:31:48,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:48,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:31:48,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:31:48,996 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:31:48,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-28 20:31:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:49,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:31:49,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:31:49,354 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 20:31:49,354 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:31:49,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370599502] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:31:49,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:31:49,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2023-11-28 20:31:49,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792329368] [2023-11-28 20:31:49,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:31:49,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:31:49,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:31:49,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:31:49,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:31:49,356 INFO L87 Difference]: Start difference. First operand 717 states and 986 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2023-11-28 20:31:49,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:31:49,574 INFO L93 Difference]: Finished difference Result 1443 states and 1985 transitions. [2023-11-28 20:31:49,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:31:49,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 46 [2023-11-28 20:31:49,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:31:49,579 INFO L225 Difference]: With dead ends: 1443 [2023-11-28 20:31:49,579 INFO L226 Difference]: Without dead ends: 717 [2023-11-28 20:31:49,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:31:49,583 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 4 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:31:49,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1624 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:31:49,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2023-11-28 20:31:49,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2023-11-28 20:31:49,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 490 states have (on average 1.3816326530612244) internal successors, (677), 503 states have internal predecessors, (677), 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) [2023-11-28 20:31:49,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 984 transitions. [2023-11-28 20:31:49,624 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 984 transitions. Word has length 46 [2023-11-28 20:31:49,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:31:49,624 INFO L495 AbstractCegarLoop]: Abstraction has 717 states and 984 transitions. [2023-11-28 20:31:49,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2023-11-28 20:31:49,625 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 984 transitions. [2023-11-28 20:31:49,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-28 20:31:49,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:31:49,626 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:31:49,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-28 20:31:49,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:31:49,829 INFO L420 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)] === [2023-11-28 20:31:49,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:31:49,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1395892864, now seen corresponding path program 1 times [2023-11-28 20:31:49,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:31:49,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7990763] [2023-11-28 20:31:49,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:49,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:31:49,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:49,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 20:31:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:49,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:31:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:50,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:31:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:50,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:31:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:50,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:31:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:50,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-28 20:31:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:50,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-28 20:31:50,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:50,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:31:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:50,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:31:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:50,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-28 20:31:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:50,065 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-28 20:31:50,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:31:50,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7990763] [2023-11-28 20:31:50,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7990763] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:31:50,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609272912] [2023-11-28 20:31:50,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:50,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:31:50,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:31:50,067 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:31:50,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-28 20:31:50,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:50,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 939 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:31:50,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:31:50,466 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 20:31:50,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:31:50,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609272912] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:31:50,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:31:50,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2023-11-28 20:31:50,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740905887] [2023-11-28 20:31:50,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:31:50,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:31:50,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:31:50,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:31:50,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:31:50,468 INFO L87 Difference]: Start difference. First operand 717 states and 984 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:31:50,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:31:50,664 INFO L93 Difference]: Finished difference Result 1443 states and 1981 transitions. [2023-11-28 20:31:50,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:31:50,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 69 [2023-11-28 20:31:50,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:31:50,670 INFO L225 Difference]: With dead ends: 1443 [2023-11-28 20:31:50,670 INFO L226 Difference]: Without dead ends: 727 [2023-11-28 20:31:50,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:31:50,674 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 1 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:31:50,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1634 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:31:50,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2023-11-28 20:31:50,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 725. [2023-11-28 20:31:50,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 496 states have (on average 1.377016129032258) internal successors, (683), 509 states have internal predecessors, (683), 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) [2023-11-28 20:31:50,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 994 transitions. [2023-11-28 20:31:50,712 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 994 transitions. Word has length 69 [2023-11-28 20:31:50,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:31:50,713 INFO L495 AbstractCegarLoop]: Abstraction has 725 states and 994 transitions. [2023-11-28 20:31:50,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:31:50,713 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 994 transitions. [2023-11-28 20:31:50,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-28 20:31:50,714 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:31:50,714 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-28 20:31:50,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-28 20:31:50,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:31:50,922 INFO L420 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)] === [2023-11-28 20:31:50,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:31:50,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1349695065, now seen corresponding path program 1 times [2023-11-28 20:31:50,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:31:50,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981172013] [2023-11-28 20:31:50,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:50,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:31:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:51,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 20:31:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:51,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:31:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:51,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:31:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:51,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:31:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:51,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:31:51,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:51,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 20:31:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:51,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:31:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:51,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:31:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:51,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-28 20:31:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:51,129 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-28 20:31:51,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:31:51,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981172013] [2023-11-28 20:31:51,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981172013] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:31:51,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700433406] [2023-11-28 20:31:51,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:51,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:31:51,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:31:51,131 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:31:51,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-28 20:31:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:51,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 923 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:31:51,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:31:51,496 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-28 20:31:51,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:31:51,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700433406] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:31:51,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:31:51,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-28 20:31:51,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212746755] [2023-11-28 20:31:51,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:31:51,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:31:51,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:31:51,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:31:51,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:31:51,498 INFO L87 Difference]: Start difference. First operand 725 states and 994 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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) [2023-11-28 20:31:51,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:31:51,625 INFO L93 Difference]: Finished difference Result 725 states and 994 transitions. [2023-11-28 20:31:51,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:31:51,626 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 68 [2023-11-28 20:31:51,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:31:51,630 INFO L225 Difference]: With dead ends: 725 [2023-11-28 20:31:51,630 INFO L226 Difference]: Without dead ends: 724 [2023-11-28 20:31:51,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:31:51,631 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 5 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:31:51,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 811 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:31:51,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2023-11-28 20:31:51,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 724. [2023-11-28 20:31:51,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 496 states have (on average 1.3709677419354838) internal successors, (680), 508 states have internal predecessors, (680), 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) [2023-11-28 20:31:51,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 991 transitions. [2023-11-28 20:31:51,680 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 991 transitions. Word has length 68 [2023-11-28 20:31:51,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:31:51,681 INFO L495 AbstractCegarLoop]: Abstraction has 724 states and 991 transitions. [2023-11-28 20:31:51,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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) [2023-11-28 20:31:51,681 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 991 transitions. [2023-11-28 20:31:51,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-28 20:31:51,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:31:51,683 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-28 20:31:51,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-28 20:31:51,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-28 20:31:51,883 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-28 20:31:51,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:31:51,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1109125827, now seen corresponding path program 1 times [2023-11-28 20:31:51,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:31:51,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162519754] [2023-11-28 20:31:51,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:51,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:31:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:52,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 20:31:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:52,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:31:52,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:52,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:31:52,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:52,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:31:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:52,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:31:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:52,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 20:31:52,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:52,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:31:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:52,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:31:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:52,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-28 20:31:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:52,082 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-28 20:31:52,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:31:52,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162519754] [2023-11-28 20:31:52,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162519754] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:31:52,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269639867] [2023-11-28 20:31:52,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:52,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:31:52,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:31:52,084 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:31:52,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-28 20:31:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:52,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:31:52,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:31:52,436 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-28 20:31:52,436 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:31:52,487 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-28 20:31:52,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269639867] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:31:52,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:31:52,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8 [2023-11-28 20:31:52,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472338358] [2023-11-28 20:31:52,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:31:52,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-28 20:31:52,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:31:52,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-28 20:31:52,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:31:52,490 INFO L87 Difference]: Start difference. First operand 724 states and 991 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-28 20:31:53,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:31:53,511 INFO L93 Difference]: Finished difference Result 1024 states and 1473 transitions. [2023-11-28 20:31:53,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 20:31:53,512 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 69 [2023-11-28 20:31:53,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:31:53,518 INFO L225 Difference]: With dead ends: 1024 [2023-11-28 20:31:53,519 INFO L226 Difference]: Without dead ends: 1003 [2023-11-28 20:31:53,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-11-28 20:31:53,520 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 314 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1380 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-28 20:31:53,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 1380 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-28 20:31:53,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2023-11-28 20:31:53,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 705. [2023-11-28 20:31:53,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 483 states have (on average 1.3685300207039337) internal successors, (661), 493 states have internal predecessors, (661), 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) [2023-11-28 20:31:53,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 967 transitions. [2023-11-28 20:31:53,565 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 967 transitions. Word has length 69 [2023-11-28 20:31:53,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:31:53,566 INFO L495 AbstractCegarLoop]: Abstraction has 705 states and 967 transitions. [2023-11-28 20:31:53,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-28 20:31:53,566 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 967 transitions. [2023-11-28 20:31:53,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-28 20:31:53,568 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:31:53,568 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-28 20:31:53,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-28 20:31:53,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:31:53,769 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-28 20:31:53,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:31:53,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1690388494, now seen corresponding path program 1 times [2023-11-28 20:31:53,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:31:53,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379116548] [2023-11-28 20:31:53,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:53,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:31:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:53,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 20:31:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:53,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:31:53,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:53,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:31:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:53,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:31:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:53,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:31:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:53,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 20:31:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:53,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:31:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:53,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:31:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:53,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-28 20:31:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:53,999 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-28 20:31:53,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:31:54,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379116548] [2023-11-28 20:31:54,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379116548] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:31:54,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:31:54,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:31:54,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415730356] [2023-11-28 20:31:54,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:31:54,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:31:54,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:31:54,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:31:54,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:31:54,001 INFO L87 Difference]: Start difference. First operand 705 states and 967 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-28 20:31:55,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:31:55,312 INFO L93 Difference]: Finished difference Result 2546 states and 3618 transitions. [2023-11-28 20:31:55,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 20:31:55,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (7), 3 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 78 [2023-11-28 20:31:55,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:31:55,325 INFO L225 Difference]: With dead ends: 2546 [2023-11-28 20:31:55,325 INFO L226 Difference]: Without dead ends: 1842 [2023-11-28 20:31:55,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:31:55,329 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 849 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 1133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:31:55,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 1001 Invalid, 1133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-28 20:31:55,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1842 states. [2023-11-28 20:31:55,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1842 to 1278. [2023-11-28 20:31:55,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 874 states have (on average 1.3466819221967963) internal successors, (1177), 888 states have internal predecessors, (1177), 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) [2023-11-28 20:31:55,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1737 transitions. [2023-11-28 20:31:55,415 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1737 transitions. Word has length 78 [2023-11-28 20:31:55,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:31:55,415 INFO L495 AbstractCegarLoop]: Abstraction has 1278 states and 1737 transitions. [2023-11-28 20:31:55,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-28 20:31:55,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1737 transitions. [2023-11-28 20:31:55,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-28 20:31:55,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:31:55,417 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-28 20:31:55,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-28 20:31:55,417 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-28 20:31:55,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:31:55,418 INFO L85 PathProgramCache]: Analyzing trace with hash -277876863, now seen corresponding path program 1 times [2023-11-28 20:31:55,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:31:55,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929651519] [2023-11-28 20:31:55,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:55,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:31:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:55,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 20:31:55,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:55,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:31:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:55,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:31:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:55,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:31:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:55,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:31:55,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:55,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 20:31:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:55,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:31:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:55,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:31:55,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:55,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-28 20:31:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:55,633 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-28 20:31:55,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:31:55,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929651519] [2023-11-28 20:31:55,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929651519] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:31:55,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:31:55,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:31:55,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604372498] [2023-11-28 20:31:55,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:31:55,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:31:55,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:31:55,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:31:55,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:31:55,635 INFO L87 Difference]: Start difference. First operand 1278 states and 1737 transitions. Second operand has 5 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-28 20:31:56,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:31:56,479 INFO L93 Difference]: Finished difference Result 3141 states and 4436 transitions. [2023-11-28 20:31:56,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:31:56,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (9), 3 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 81 [2023-11-28 20:31:56,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:31:56,493 INFO L225 Difference]: With dead ends: 3141 [2023-11-28 20:31:56,493 INFO L226 Difference]: Without dead ends: 1864 [2023-11-28 20:31:56,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:31:56,498 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 308 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-28 20:31:56,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 820 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-28 20:31:56,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2023-11-28 20:31:56,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1294. [2023-11-28 20:31:56,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 890 states have (on average 1.344943820224719) internal successors, (1197), 904 states have internal predecessors, (1197), 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) [2023-11-28 20:31:56,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 1757 transitions. [2023-11-28 20:31:56,587 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 1757 transitions. Word has length 81 [2023-11-28 20:31:56,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:31:56,587 INFO L495 AbstractCegarLoop]: Abstraction has 1294 states and 1757 transitions. [2023-11-28 20:31:56,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-28 20:31:56,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 1757 transitions. [2023-11-28 20:31:56,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-28 20:31:56,589 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:31:56,589 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-28 20:31:56,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-28 20:31:56,590 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-28 20:31:56,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:31:56,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1387157316, now seen corresponding path program 1 times [2023-11-28 20:31:56,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:31:56,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809866551] [2023-11-28 20:31:56,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:56,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:31:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:56,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 20:31:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:56,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:31:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:56,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:31:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:56,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:31:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:56,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:31:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:56,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 20:31:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:56,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:31:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:56,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:31:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:56,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-28 20:31:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:56,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-28 20:31:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:56,826 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-28 20:31:56,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:31:56,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809866551] [2023-11-28 20:31:56,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809866551] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:31:56,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:31:56,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:31:56,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076872773] [2023-11-28 20:31:56,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:31:56,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:31:56,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:31:56,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:31:56,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:31:56,828 INFO L87 Difference]: Start difference. First operand 1294 states and 1757 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 20:31:58,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:31:58,213 INFO L93 Difference]: Finished difference Result 2832 states and 4031 transitions. [2023-11-28 20:31:58,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 20:31:58,214 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 4 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 82 [2023-11-28 20:31:58,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:31:58,231 INFO L225 Difference]: With dead ends: 2832 [2023-11-28 20:31:58,231 INFO L226 Difference]: Without dead ends: 2830 [2023-11-28 20:31:58,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:31:58,233 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 1012 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 673 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 673 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:31:58,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 1007 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [673 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-28 20:31:58,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2830 states. [2023-11-28 20:31:58,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2830 to 1984. [2023-11-28 20:31:58,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1984 states, 1370 states have (on average 1.335036496350365) internal successors, (1829), 1389 states have internal predecessors, (1829), 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) [2023-11-28 20:31:58,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1984 states and 2683 transitions. [2023-11-28 20:31:58,378 INFO L78 Accepts]: Start accepts. Automaton has 1984 states and 2683 transitions. Word has length 82 [2023-11-28 20:31:58,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:31:58,379 INFO L495 AbstractCegarLoop]: Abstraction has 1984 states and 2683 transitions. [2023-11-28 20:31:58,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 20:31:58,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1984 states and 2683 transitions. [2023-11-28 20:31:58,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-28 20:31:58,381 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:31:58,381 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-28 20:31:58,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-28 20:31:58,381 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-28 20:31:58,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:31:58,382 INFO L85 PathProgramCache]: Analyzing trace with hash -819832530, now seen corresponding path program 1 times [2023-11-28 20:31:58,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:31:58,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391620232] [2023-11-28 20:31:58,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:58,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:31:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:58,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 20:31:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:58,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:31:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:58,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:31:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:58,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:31:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:58,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:31:58,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:58,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 20:31:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:58,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:31:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:58,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:31:58,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:58,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-28 20:31:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:58,598 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-28 20:31:58,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:31:58,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391620232] [2023-11-28 20:31:58,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391620232] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:31:58,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956413264] [2023-11-28 20:31:58,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:58,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:31:58,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:31:58,600 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:31:58,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-28 20:31:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:59,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 1044 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:31:59,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:31:59,043 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-28 20:31:59,043 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:31:59,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956413264] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:31:59,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:31:59,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2023-11-28 20:31:59,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764270099] [2023-11-28 20:31:59,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:31:59,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:31:59,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:31:59,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:31:59,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:31:59,046 INFO L87 Difference]: Start difference. First operand 1984 states and 2683 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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) [2023-11-28 20:31:59,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:31:59,289 INFO L93 Difference]: Finished difference Result 3907 states and 5290 transitions. [2023-11-28 20:31:59,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:31:59,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 85 [2023-11-28 20:31:59,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:31:59,302 INFO L225 Difference]: With dead ends: 3907 [2023-11-28 20:31:59,302 INFO L226 Difference]: Without dead ends: 2009 [2023-11-28 20:31:59,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:31:59,308 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 2 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1591 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:31:59,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1591 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:31:59,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2009 states. [2023-11-28 20:31:59,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2009 to 1994. [2023-11-28 20:31:59,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1994 states, 1380 states have (on average 1.3326086956521739) internal successors, (1839), 1394 states have internal predecessors, (1839), 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) [2023-11-28 20:31:59,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2693 transitions. [2023-11-28 20:31:59,433 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2693 transitions. Word has length 85 [2023-11-28 20:31:59,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:31:59,433 INFO L495 AbstractCegarLoop]: Abstraction has 1994 states and 2693 transitions. [2023-11-28 20:31:59,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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) [2023-11-28 20:31:59,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2693 transitions. [2023-11-28 20:31:59,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-28 20:31:59,435 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:31:59,436 INFO L195 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] [2023-11-28 20:31:59,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-28 20:31:59,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:31:59,641 INFO L420 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)] === [2023-11-28 20:31:59,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:31:59,641 INFO L85 PathProgramCache]: Analyzing trace with hash -903435079, now seen corresponding path program 1 times [2023-11-28 20:31:59,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:31:59,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096919997] [2023-11-28 20:31:59,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:59,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:31:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:59,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 20:31:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:59,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:31:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:59,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:31:59,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:59,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:31:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:59,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:31:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:59,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 20:31:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:59,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:31:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:59,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:31:59,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:31:59,847 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-28 20:31:59,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:31:59,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096919997] [2023-11-28 20:31:59,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096919997] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:31:59,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053408960] [2023-11-28 20:31:59,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:31:59,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:31:59,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:31:59,849 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:31:59,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-28 20:32:00,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:00,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 1028 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:32:00,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:32:00,274 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-28 20:32:00,275 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:32:00,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053408960] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:32:00,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:32:00,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-28 20:32:00,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272449495] [2023-11-28 20:32:00,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:32:00,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:32:00,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:32:00,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:32:00,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:32:00,277 INFO L87 Difference]: Start difference. First operand 1994 states and 2693 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 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) [2023-11-28 20:32:00,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:32:00,464 INFO L93 Difference]: Finished difference Result 2006 states and 2711 transitions. [2023-11-28 20:32:00,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:32:00,464 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 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 84 [2023-11-28 20:32:00,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:32:00,476 INFO L225 Difference]: With dead ends: 2006 [2023-11-28 20:32:00,476 INFO L226 Difference]: Without dead ends: 2005 [2023-11-28 20:32:00,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:32:00,495 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 7 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:32:00,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1195 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:32:00,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2005 states. [2023-11-28 20:32:00,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2005 to 1993. [2023-11-28 20:32:00,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1993 states, 1380 states have (on average 1.3282608695652174) internal successors, (1833), 1393 states have internal predecessors, (1833), 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) [2023-11-28 20:32:00,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 2687 transitions. [2023-11-28 20:32:00,610 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 2687 transitions. Word has length 84 [2023-11-28 20:32:00,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:32:00,610 INFO L495 AbstractCegarLoop]: Abstraction has 1993 states and 2687 transitions. [2023-11-28 20:32:00,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 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) [2023-11-28 20:32:00,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 2687 transitions. [2023-11-28 20:32:00,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-28 20:32:00,612 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:32:00,612 INFO L195 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] [2023-11-28 20:32:00,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-28 20:32:00,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-28 20:32:00,819 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-28 20:32:00,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:00,820 INFO L85 PathProgramCache]: Analyzing trace with hash 2058283677, now seen corresponding path program 1 times [2023-11-28 20:32:00,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:00,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911736512] [2023-11-28 20:32:00,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:00,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:00,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 20:32:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:00,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:32:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:00,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:32:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:00,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:00,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:00,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 20:32:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:00,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:00,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:00,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:00,980 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-28 20:32:00,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:32:00,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911736512] [2023-11-28 20:32:00,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911736512] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:32:00,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40425343] [2023-11-28 20:32:00,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:00,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:32:00,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:00,982 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:32:00,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-28 20:32:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:01,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:32:01,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:32:01,331 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-28 20:32:01,332 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:32:01,380 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-28 20:32:01,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40425343] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:32:01,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:32:01,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8 [2023-11-28 20:32:01,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602421185] [2023-11-28 20:32:01,381 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:32:01,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-28 20:32:01,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:32:01,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-28 20:32:01,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:32:01,382 INFO L87 Difference]: Start difference. First operand 1993 states and 2687 transitions. Second operand has 9 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-28 20:32:02,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:32:02,420 INFO L93 Difference]: Finished difference Result 2915 states and 4157 transitions. [2023-11-28 20:32:02,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 20:32:02,421 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 85 [2023-11-28 20:32:02,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:32:02,435 INFO L225 Difference]: With dead ends: 2915 [2023-11-28 20:32:02,435 INFO L226 Difference]: Without dead ends: 2914 [2023-11-28 20:32:02,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-11-28 20:32:02,436 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 335 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-28 20:32:02,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 1603 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 1142 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-28 20:32:02,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2023-11-28 20:32:02,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 1974. [2023-11-28 20:32:02,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1974 states, 1362 states have (on average 1.3237885462555066) internal successors, (1803), 1374 states have internal predecessors, (1803), 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) [2023-11-28 20:32:02,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 2657 transitions. [2023-11-28 20:32:02,532 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 2657 transitions. Word has length 85 [2023-11-28 20:32:02,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:32:02,532 INFO L495 AbstractCegarLoop]: Abstraction has 1974 states and 2657 transitions. [2023-11-28 20:32:02,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-28 20:32:02,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 2657 transitions. [2023-11-28 20:32:02,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-28 20:32:02,534 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:32:02,535 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:32:02,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-28 20:32:02,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-28 20:32:02,735 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-28 20:32:02,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:02,736 INFO L85 PathProgramCache]: Analyzing trace with hash -454229736, now seen corresponding path program 1 times [2023-11-28 20:32:02,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:02,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122719931] [2023-11-28 20:32:02,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:02,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:02,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 20:32:02,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:02,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:32:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:02,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:32:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:02,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:02,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:02,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:02,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 20:32:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:02,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:02,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:02,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:02,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-28 20:32:02,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:02,962 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-28 20:32:02,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:32:02,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122719931] [2023-11-28 20:32:02,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122719931] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:32:02,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603161145] [2023-11-28 20:32:02,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:02,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:32:02,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:02,964 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:32:02,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-28 20:32:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:03,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:32:03,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:32:03,445 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-28 20:32:03,445 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:32:03,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603161145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:32:03,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:32:03,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-11-28 20:32:03,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085907008] [2023-11-28 20:32:03,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:32:03,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:32:03,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:32:03,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:32:03,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:32:03,446 INFO L87 Difference]: Start difference. First operand 1974 states and 2657 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2023-11-28 20:32:03,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:32:03,884 INFO L93 Difference]: Finished difference Result 2575 states and 3467 transitions. [2023-11-28 20:32:03,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:32:03,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 94 [2023-11-28 20:32:03,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:32:03,893 INFO L225 Difference]: With dead ends: 2575 [2023-11-28 20:32:03,893 INFO L226 Difference]: Without dead ends: 2573 [2023-11-28 20:32:03,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:32:03,894 INFO L413 NwaCegarLoop]: 756 mSDtfsCounter, 831 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:32:03,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 984 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 20:32:03,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2573 states. [2023-11-28 20:32:03,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2573 to 1972. [2023-11-28 20:32:03,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1972 states, 1362 states have (on average 1.3208516886930983) internal successors, (1799), 1372 states have internal predecessors, (1799), 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) [2023-11-28 20:32:03,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1972 states to 1972 states and 2653 transitions. [2023-11-28 20:32:03,988 INFO L78 Accepts]: Start accepts. Automaton has 1972 states and 2653 transitions. Word has length 94 [2023-11-28 20:32:03,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:32:03,988 INFO L495 AbstractCegarLoop]: Abstraction has 1972 states and 2653 transitions. [2023-11-28 20:32:03,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2023-11-28 20:32:03,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1972 states and 2653 transitions. [2023-11-28 20:32:03,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-28 20:32:03,990 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:32:03,991 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:32:03,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-28 20:32:04,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-28 20:32:04,192 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-28 20:32:04,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:04,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1196219227, now seen corresponding path program 1 times [2023-11-28 20:32:04,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:04,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267231633] [2023-11-28 20:32:04,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:04,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:04,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 20:32:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:04,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:32:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:04,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:32:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:04,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:04,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:04,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:04,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 20:32:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:04,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:04,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:04,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-28 20:32:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:04,415 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-28 20:32:04,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:32:04,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267231633] [2023-11-28 20:32:04,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267231633] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:32:04,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115517343] [2023-11-28 20:32:04,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:04,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:32:04,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:04,417 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:32:04,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-28 20:32:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:04,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:32:04,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:32:04,793 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-28 20:32:04,793 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:32:04,866 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-28 20:32:04,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115517343] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:32:04,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:32:04,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 2, 3] total 9 [2023-11-28 20:32:04,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653945678] [2023-11-28 20:32:04,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:32:04,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 20:32:04,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:32:04,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 20:32:04,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:32:04,868 INFO L87 Difference]: Start difference. First operand 1972 states and 2653 transitions. Second operand has 10 states, 9 states have (on average 17.88888888888889) internal successors, (161), 7 states have internal predecessors, (161), 4 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-11-28 20:32:07,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:32:07,687 INFO L93 Difference]: Finished difference Result 5541 states and 7880 transitions. [2023-11-28 20:32:07,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-28 20:32:07,689 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 17.88888888888889) internal successors, (161), 7 states have internal predecessors, (161), 4 states have call successors, (19), 5 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 95 [2023-11-28 20:32:07,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:32:07,708 INFO L225 Difference]: With dead ends: 5541 [2023-11-28 20:32:07,709 INFO L226 Difference]: Without dead ends: 5539 [2023-11-28 20:32:07,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2023-11-28 20:32:07,711 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 3093 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 1619 mSolverCounterSat, 1536 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3327 SdHoareTripleChecker+Valid, 1532 SdHoareTripleChecker+Invalid, 3155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1536 IncrementalHoareTripleChecker+Valid, 1619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:32:07,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3327 Valid, 1532 Invalid, 3155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1536 Valid, 1619 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-28 20:32:07,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5539 states. [2023-11-28 20:32:07,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5539 to 3252. [2023-11-28 20:32:07,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3252 states, 2245 states have (on average 1.3216035634743875) internal successors, (2967), 2260 states have internal predecessors, (2967), 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) [2023-11-28 20:32:07,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3252 states to 3252 states and 4381 transitions. [2023-11-28 20:32:07,887 INFO L78 Accepts]: Start accepts. Automaton has 3252 states and 4381 transitions. Word has length 95 [2023-11-28 20:32:07,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:32:07,887 INFO L495 AbstractCegarLoop]: Abstraction has 3252 states and 4381 transitions. [2023-11-28 20:32:07,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 17.88888888888889) internal successors, (161), 7 states have internal predecessors, (161), 4 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-11-28 20:32:07,888 INFO L276 IsEmpty]: Start isEmpty. Operand 3252 states and 4381 transitions. [2023-11-28 20:32:07,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-28 20:32:07,892 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:32:07,892 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:32:07,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-28 20:32:08,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:32:08,092 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-28 20:32:08,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:08,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1050074736, now seen corresponding path program 1 times [2023-11-28 20:32:08,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:08,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271402459] [2023-11-28 20:32:08,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:08,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:08,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 20:32:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:08,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:32:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:08,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:32:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:08,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:08,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:08,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 20:32:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:08,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:08,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:08,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-28 20:32:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:08,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-28 20:32:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:08,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-28 20:32:08,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:08,291 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-28 20:32:08,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:32:08,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271402459] [2023-11-28 20:32:08,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271402459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:32:08,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:32:08,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 20:32:08,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262911595] [2023-11-28 20:32:08,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:32:08,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:32:08,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:32:08,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:32:08,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:32:08,293 INFO L87 Difference]: Start difference. First operand 3252 states and 4381 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 20:32:09,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:32:09,798 INFO L93 Difference]: Finished difference Result 7644 states and 10658 transitions. [2023-11-28 20:32:09,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 20:32:09,798 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (8), 4 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 116 [2023-11-28 20:32:09,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:32:09,811 INFO L225 Difference]: With dead ends: 7644 [2023-11-28 20:32:09,812 INFO L226 Difference]: Without dead ends: 4480 [2023-11-28 20:32:09,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:32:09,820 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 821 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 510 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 1503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 510 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:32:09,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 1340 Invalid, 1503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [510 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-28 20:32:09,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4480 states. [2023-11-28 20:32:10,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4480 to 3078. [2023-11-28 20:32:10,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3078 states, 2109 states have (on average 1.3025130393551445) internal successors, (2747), 2126 states have internal predecessors, (2747), 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) [2023-11-28 20:32:10,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3078 states to 3078 states and 4117 transitions. [2023-11-28 20:32:10,051 INFO L78 Accepts]: Start accepts. Automaton has 3078 states and 4117 transitions. Word has length 116 [2023-11-28 20:32:10,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:32:10,051 INFO L495 AbstractCegarLoop]: Abstraction has 3078 states and 4117 transitions. [2023-11-28 20:32:10,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 20:32:10,051 INFO L276 IsEmpty]: Start isEmpty. Operand 3078 states and 4117 transitions. [2023-11-28 20:32:10,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-28 20:32:10,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:32:10,058 INFO L195 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, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:32:10,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-28 20:32:10,058 INFO L420 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)] === [2023-11-28 20:32:10,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:10,058 INFO L85 PathProgramCache]: Analyzing trace with hash 808897930, now seen corresponding path program 1 times [2023-11-28 20:32:10,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:10,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293452253] [2023-11-28 20:32:10,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:10,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:10,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:10,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 20:32:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:10,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:32:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:10,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:32:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:10,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:10,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:10,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 20:32:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:10,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:10,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:10,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:10,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-28 20:32:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:10,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-28 20:32:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:10,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-28 20:32:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:10,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-28 20:32:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:10,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:10,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:10,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-28 20:32:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:10,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:10,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:10,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-28 20:32:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:10,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-11-28 20:32:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:10,329 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2023-11-28 20:32:10,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:32:10,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293452253] [2023-11-28 20:32:10,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293452253] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:32:10,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:32:10,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 20:32:10,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235747106] [2023-11-28 20:32:10,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:32:10,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:32:10,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:32:10,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:32:10,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:32:10,332 INFO L87 Difference]: Start difference. First operand 3078 states and 4117 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-28 20:32:11,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:32:11,731 INFO L93 Difference]: Finished difference Result 7558 states and 10466 transitions. [2023-11-28 20:32:11,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 20:32:11,731 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (12), 4 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 194 [2023-11-28 20:32:11,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:32:11,746 INFO L225 Difference]: With dead ends: 7558 [2023-11-28 20:32:11,746 INFO L226 Difference]: Without dead ends: 3646 [2023-11-28 20:32:11,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:32:11,756 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 1076 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 875 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 1522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 875 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:32:11,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 965 Invalid, 1522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [875 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-28 20:32:11,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3646 states. [2023-11-28 20:32:11,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3646 to 2523. [2023-11-28 20:32:11,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 1727 states have (on average 1.2918355529820498) internal successors, (2231), 1740 states have internal predecessors, (2231), 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) [2023-11-28 20:32:11,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 3355 transitions. [2023-11-28 20:32:11,922 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 3355 transitions. Word has length 194 [2023-11-28 20:32:11,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:32:11,923 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 3355 transitions. [2023-11-28 20:32:11,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-28 20:32:11,923 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 3355 transitions. [2023-11-28 20:32:11,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-28 20:32:11,928 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:32:11,928 INFO L195 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:32:11,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-28 20:32:11,928 INFO L420 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)] === [2023-11-28 20:32:11,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:11,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1484058056, now seen corresponding path program 1 times [2023-11-28 20:32:11,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:11,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592691601] [2023-11-28 20:32:11,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:11,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:12,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 20:32:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:12,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:32:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:12,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:32:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:12,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:12,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:12,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 20:32:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:12,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:12,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:12,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-28 20:32:12,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:12,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-28 20:32:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:12,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-28 20:32:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:12,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-28 20:32:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:12,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:12,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:12,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:12,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-28 20:32:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:12,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:12,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:12,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-28 20:32:12,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:12,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-11-28 20:32:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:12,307 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-28 20:32:12,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:32:12,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592691601] [2023-11-28 20:32:12,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592691601] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:32:12,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:32:12,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 20:32:12,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930272162] [2023-11-28 20:32:12,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:32:12,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 20:32:12,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:32:12,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 20:32:12,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:32:12,309 INFO L87 Difference]: Start difference. First operand 2523 states and 3355 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-28 20:32:13,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:32:13,500 INFO L93 Difference]: Finished difference Result 6297 states and 8689 transitions. [2023-11-28 20:32:13,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 20:32:13,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (11), 4 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 194 [2023-11-28 20:32:13,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:32:13,513 INFO L225 Difference]: With dead ends: 6297 [2023-11-28 20:32:13,513 INFO L226 Difference]: Without dead ends: 3769 [2023-11-28 20:32:13,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-28 20:32:13,519 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 759 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-28 20:32:13,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 1287 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-28 20:32:13,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3769 states. [2023-11-28 20:32:13,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3769 to 2529. [2023-11-28 20:32:13,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 1733 states have (on average 1.2890940565493365) internal successors, (2234), 1746 states have internal predecessors, (2234), 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) [2023-11-28 20:32:13,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 3358 transitions. [2023-11-28 20:32:13,854 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 3358 transitions. Word has length 194 [2023-11-28 20:32:13,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:32:13,854 INFO L495 AbstractCegarLoop]: Abstraction has 2529 states and 3358 transitions. [2023-11-28 20:32:13,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-28 20:32:13,855 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 3358 transitions. [2023-11-28 20:32:13,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-11-28 20:32:13,862 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:32:13,862 INFO L195 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:32:13,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-28 20:32:13,863 INFO L420 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)] === [2023-11-28 20:32:13,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:13,863 INFO L85 PathProgramCache]: Analyzing trace with hash 902966052, now seen corresponding path program 1 times [2023-11-28 20:32:13,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:13,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935446905] [2023-11-28 20:32:13,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:13,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:14,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 20:32:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:14,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:32:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:14,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:32:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:14,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:14,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:14,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 20:32:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:14,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:14,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:14,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:14,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-28 20:32:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:14,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-28 20:32:14,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:14,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 20:32:14,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:14,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-28 20:32:14,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:14,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-28 20:32:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:14,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-28 20:32:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:14,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:14,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:14,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:14,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-28 20:32:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:14,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:14,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:14,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-11-28 20:32:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:14,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-11-28 20:32:14,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:14,251 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2023-11-28 20:32:14,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:32:14,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935446905] [2023-11-28 20:32:14,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935446905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:32:14,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:32:14,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 20:32:14,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102852264] [2023-11-28 20:32:14,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:32:14,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 20:32:14,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:32:14,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 20:32:14,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:32:14,253 INFO L87 Difference]: Start difference. First operand 2529 states and 3358 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-28 20:32:15,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:32:15,292 INFO L93 Difference]: Finished difference Result 6231 states and 8601 transitions. [2023-11-28 20:32:15,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 20:32:15,293 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 4 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 201 [2023-11-28 20:32:15,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:32:15,305 INFO L225 Difference]: With dead ends: 6231 [2023-11-28 20:32:15,305 INFO L226 Difference]: Without dead ends: 3776 [2023-11-28 20:32:15,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:32:15,311 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 443 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 1387 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-28 20:32:15,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 1387 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-28 20:32:15,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3776 states. [2023-11-28 20:32:15,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3776 to 2533. [2023-11-28 20:32:15,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2533 states, 1737 states have (on average 1.2878526194588371) internal successors, (2237), 1750 states have internal predecessors, (2237), 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) [2023-11-28 20:32:15,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2533 states to 2533 states and 3361 transitions. [2023-11-28 20:32:15,487 INFO L78 Accepts]: Start accepts. Automaton has 2533 states and 3361 transitions. Word has length 201 [2023-11-28 20:32:15,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:32:15,488 INFO L495 AbstractCegarLoop]: Abstraction has 2533 states and 3361 transitions. [2023-11-28 20:32:15,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-28 20:32:15,488 INFO L276 IsEmpty]: Start isEmpty. Operand 2533 states and 3361 transitions. [2023-11-28 20:32:15,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-11-28 20:32:15,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:32:15,491 INFO L195 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, 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, 1, 1] [2023-11-28 20:32:15,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-28 20:32:15,491 INFO L420 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)] === [2023-11-28 20:32:15,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:15,492 INFO L85 PathProgramCache]: Analyzing trace with hash 393186335, now seen corresponding path program 1 times [2023-11-28 20:32:15,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:15,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144929178] [2023-11-28 20:32:15,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:15,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 20:32:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:32:15,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:32:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 20:32:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-28 20:32:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-28 20:32:15,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-28 20:32:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-28 20:32:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-28 20:32:15,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-28 20:32:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-28 20:32:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-28 20:32:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-28 20:32:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-28 20:32:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-28 20:32:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:15,782 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2023-11-28 20:32:15,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:32:15,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144929178] [2023-11-28 20:32:15,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144929178] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:32:15,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:32:15,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 20:32:15,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842234230] [2023-11-28 20:32:15,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:32:15,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:32:15,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:32:15,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:32:15,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:32:15,785 INFO L87 Difference]: Start difference. First operand 2533 states and 3361 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-28 20:32:15,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:32:15,908 INFO L93 Difference]: Finished difference Result 2632 states and 3478 transitions. [2023-11-28 20:32:15,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:32:15,908 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 4 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 216 [2023-11-28 20:32:15,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:32:15,909 INFO L225 Difference]: With dead ends: 2632 [2023-11-28 20:32:15,909 INFO L226 Difference]: Without dead ends: 0 [2023-11-28 20:32:15,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:32:15,915 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 33 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:32:15,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 180 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:32:15,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-28 20:32:15,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-28 20:32:15,916 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) [2023-11-28 20:32:15,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-28 20:32:15,916 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 216 [2023-11-28 20:32:15,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:32:15,917 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 20:32:15,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-28 20:32:15,917 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-28 20:32:15,917 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-28 20:32:15,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-11-28 20:32:15,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-11-28 20:32:15,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-11-28 20:32:15,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-11-28 20:32:15,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2023-11-28 20:32:15,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2023-11-28 20:32:15,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-11-28 20:32:15,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-11-28 20:32:15,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-11-28 20:32:15,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-11-28 20:32:15,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-28 20:32:15,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-28 20:32:21,392 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 7281 7291) the Hoare annotation is: (let ((.cse0 (and (= |#memory_int#4| |old(#memory_int#4)|) (= |old(#memory_$Pointer$#4.base)| |#memory_$Pointer$#4.base|) (= |#memory_$Pointer$#4.offset| |old(#memory_$Pointer$#4.offset)|))) (.cse1 (not (= ~ldv_state_variable_0~0 3)))) (and (or .cse0 (< ~ref_cnt~0 0) (not (= ~ldv_state_variable_1~0 1)) (< 0 ~ref_cnt~0) .cse1) (or .cse0 (not (= ~ldv_state_variable_1~0 2)) .cse1 (< 1 ~ref_cnt~0) (< ~ref_cnt~0 1)))) [2023-11-28 20:32:21,392 INFO L899 garLoopResultBuilder]: For program point L7284-2(lines 7281 7291) no Hoare annotation was computed. [2023-11-28 20:32:21,393 INFO L899 garLoopResultBuilder]: For program point L7284(lines 7284 7288) no Hoare annotation was computed. [2023-11-28 20:32:21,393 INFO L899 garLoopResultBuilder]: For program point tgt_ring_idx_incEXIT(lines 7281 7291) no Hoare annotation was computed. [2023-11-28 20:32:21,393 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8215 8217) the Hoare annotation is: true [2023-11-28 20:32:21,393 INFO L899 garLoopResultBuilder]: For program point __raw_spin_lock_initEXIT(lines 8215 8217) no Hoare annotation was computed. [2023-11-28 20:32:21,393 INFO L899 garLoopResultBuilder]: For program point uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7545) no Hoare annotation was computed. [2023-11-28 20:32:21,393 INFO L899 garLoopResultBuilder]: For program point uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7545) no Hoare annotation was computed. [2023-11-28 20:32:21,393 INFO L899 garLoopResultBuilder]: For program point L7545-1(line 7545) no Hoare annotation was computed. [2023-11-28 20:32:21,393 INFO L899 garLoopResultBuilder]: For program point L7545(line 7545) no Hoare annotation was computed. [2023-11-28 20:32:21,393 INFO L899 garLoopResultBuilder]: For program point L7540(lines 7540 7543) no Hoare annotation was computed. [2023-11-28 20:32:21,393 INFO L899 garLoopResultBuilder]: For program point uspace_ring_mapEXIT(lines 7528 7555) no Hoare annotation was computed. [2023-11-28 20:32:21,393 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7528 7555) the Hoare annotation is: true [2023-11-28 20:32:21,394 INFO L899 garLoopResultBuilder]: For program point uspace_ring_mapFINAL(lines 7528 7555) no Hoare annotation was computed. [2023-11-28 20:32:21,394 INFO L899 garLoopResultBuilder]: For program point $Ultimate##4(lines 7547 7551) no Hoare annotation was computed. [2023-11-28 20:32:21,394 INFO L899 garLoopResultBuilder]: For program point tgt_head_eventEXIT(lines 7292 7300) no Hoare annotation was computed. [2023-11-28 20:32:21,394 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7292 7300) the Hoare annotation is: true [2023-11-28 20:32:21,394 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6597 6603) the Hoare annotation is: true [2023-11-28 20:32:21,394 INFO L899 garLoopResultBuilder]: For program point scsi_unmap_user_pagesEXIT(lines 6597 6603) no Hoare annotation was computed. [2023-11-28 20:32:21,394 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8335 8337) the Hoare annotation is: true [2023-11-28 20:32:21,394 INFO L899 garLoopResultBuilder]: For program point scsi_host_putEXIT(lines 8335 8337) no Hoare annotation was computed. [2023-11-28 20:32:21,394 INFO L899 garLoopResultBuilder]: For program point L6474(line 6474) no Hoare annotation was computed. [2023-11-28 20:32:21,394 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6456 6476) the Hoare annotation is: true [2023-11-28 20:32:21,394 INFO L899 garLoopResultBuilder]: For program point L6474-2(line 6474) no Hoare annotation was computed. [2023-11-28 20:32:21,394 INFO L899 garLoopResultBuilder]: For program point hash_64EXIT(lines 6456 6476) no Hoare annotation was computed. [2023-11-28 20:32:21,395 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-11-28 20:32:21,395 INFO L899 garLoopResultBuilder]: For program point ##fun~$Pointer$~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-11-28 20:32:21,395 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8342 8344) the Hoare annotation is: true [2023-11-28 20:32:21,395 INFO L899 garLoopResultBuilder]: For program point scsi_release_buffersEXIT(lines 8342 8344) no Hoare annotation was computed. [2023-11-28 20:32:21,395 INFO L899 garLoopResultBuilder]: For program point spin_unlock_irqrestoreEXIT(lines 6348 6354) no Hoare annotation was computed. [2023-11-28 20:32:21,395 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6348 6354) the Hoare annotation is: true [2023-11-28 20:32:21,395 INFO L899 garLoopResultBuilder]: For program point L6369(lines 6369 6371) no Hoare annotation was computed. [2023-11-28 20:32:21,395 INFO L899 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 6377 6386) no Hoare annotation was computed. [2023-11-28 20:32:21,395 INFO L899 garLoopResultBuilder]: For program point L6379(lines 6379 6385) no Hoare annotation was computed. [2023-11-28 20:32:21,396 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 6377 6386) the Hoare annotation is: (let ((.cse1 (not (= ~ldv_state_variable_0~0 3))) (.cse0 (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)))) (and (or (< ~ref_cnt~0 0) (not (= ~ldv_state_variable_1~0 1)) (< 0 ~ref_cnt~0) .cse0 .cse1) (or (not (= ~ldv_state_variable_1~0 2)) .cse0 .cse1 (< 1 ~ref_cnt~0) (< ~ref_cnt~0 1)) (or (not (= ~ldv_state_variable_1~0 0)) (not (= ~ldv_retval_1~0 0)) (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_0~0 1)) .cse0))) [2023-11-28 20:32:21,396 INFO L899 garLoopResultBuilder]: For program point ldv_mallocFINAL(lines 6377 6386) no Hoare annotation was computed. [2023-11-28 20:32:21,396 INFO L899 garLoopResultBuilder]: For program point L6370(line 6370) no Hoare annotation was computed. [2023-11-28 20:32:21,396 INFO L899 garLoopResultBuilder]: For program point destroy_workqueueEXIT(lines 8261 8263) no Hoare annotation was computed. [2023-11-28 20:32:21,396 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8261 8263) the Hoare annotation is: true [2023-11-28 20:32:21,396 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6292 6298) the Hoare annotation is: true [2023-11-28 20:32:21,396 INFO L899 garLoopResultBuilder]: For program point list_addEXIT(lines 6292 6298) no Hoare annotation was computed. [2023-11-28 20:32:21,396 INFO L899 garLoopResultBuilder]: For program point tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7600) no Hoare annotation was computed. [2023-11-28 20:32:21,396 INFO L899 garLoopResultBuilder]: For program point L7600-1(line 7600) no Hoare annotation was computed. [2023-11-28 20:32:21,396 INFO L899 garLoopResultBuilder]: For program point tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7600) no Hoare annotation was computed. [2023-11-28 20:32:21,397 INFO L899 garLoopResultBuilder]: For program point tgt_ring_exitEXIT(lines 7593 7610) no Hoare annotation was computed. [2023-11-28 20:32:21,397 INFO L899 garLoopResultBuilder]: For program point L7600(line 7600) no Hoare annotation was computed. [2023-11-28 20:32:21,397 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7593 7610) the Hoare annotation is: true [2023-11-28 20:32:21,397 INFO L899 garLoopResultBuilder]: For program point $Ultimate##2(lines 7602 7606) no Hoare annotation was computed. [2023-11-28 20:32:21,397 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8322 8324) the Hoare annotation is: true [2023-11-28 20:32:21,397 INFO L899 garLoopResultBuilder]: For program point printkEXIT(lines 8322 8324) no Hoare annotation was computed. [2023-11-28 20:32:21,397 INFO L899 garLoopResultBuilder]: For program point L6615-1(line 6615) no Hoare annotation was computed. [2023-11-28 20:32:21,397 INFO L902 garLoopResultBuilder]: At program point L6615(line 6615) the Hoare annotation is: true [2023-11-28 20:32:21,397 INFO L899 garLoopResultBuilder]: For program point L6613-1(line 6613) no Hoare annotation was computed. [2023-11-28 20:32:21,398 INFO L895 garLoopResultBuilder]: At program point L6613(line 6613) the Hoare annotation is: (let ((.cse0 (and (= |#memory_int#4| |old(#memory_int#4)|) (= |old(#memory_$Pointer$#4.base)| |#memory_$Pointer$#4.base|) (= |#memory_$Pointer$#4.offset| |old(#memory_$Pointer$#4.offset)|))) (.cse1 (not (= ~ldv_state_variable_0~0 3)))) (and (or .cse0 (< ~ref_cnt~0 0) (not (= ~ldv_state_variable_1~0 1)) (< 0 ~ref_cnt~0) .cse1) (or .cse0 (not (= ~ldv_state_variable_1~0 2)) .cse1 (< 1 ~ref_cnt~0) (< ~ref_cnt~0 1)))) [2023-11-28 20:32:21,398 INFO L899 garLoopResultBuilder]: For program point L6575-1(line 6575) no Hoare annotation was computed. [2023-11-28 20:32:21,398 INFO L902 garLoopResultBuilder]: At program point L6575(line 6575) the Hoare annotation is: true [2023-11-28 20:32:21,398 INFO L899 garLoopResultBuilder]: For program point L6571-1(line 6571) no Hoare annotation was computed. [2023-11-28 20:32:21,398 INFO L902 garLoopResultBuilder]: At program point L6571(line 6571) the Hoare annotation is: true [2023-11-28 20:32:21,398 INFO L899 garLoopResultBuilder]: For program point L6572-1(line 6572) no Hoare annotation was computed. [2023-11-28 20:32:21,398 INFO L902 garLoopResultBuilder]: At program point L6572(line 6572) the Hoare annotation is: true [2023-11-28 20:32:21,398 INFO L899 garLoopResultBuilder]: For program point L6573-1(line 6573) no Hoare annotation was computed. [2023-11-28 20:32:21,399 INFO L902 garLoopResultBuilder]: At program point L6573(line 6573) the Hoare annotation is: true [2023-11-28 20:32:21,399 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 6604 6619) the Hoare annotation is: (let ((.cse0 (and (= |#memory_int#4| |old(#memory_int#4)|) (= |old(#memory_$Pointer$#4.base)| |#memory_$Pointer$#4.base|) (= |#memory_$Pointer$#4.offset| |old(#memory_$Pointer$#4.offset)|))) (.cse1 (not (= ~ldv_state_variable_0~0 3)))) (and (or .cse0 (< ~ref_cnt~0 0) (not (= ~ldv_state_variable_1~0 1)) (< 0 ~ref_cnt~0) .cse1) (or .cse0 (not (= ~ldv_state_variable_1~0 2)) .cse1 (< 1 ~ref_cnt~0) (< ~ref_cnt~0 1)))) [2023-11-28 20:32:21,399 INFO L899 garLoopResultBuilder]: For program point scsi_tgt_cmd_destroyEXIT(lines 6604 6619) no Hoare annotation was computed. [2023-11-28 20:32:21,399 INFO L899 garLoopResultBuilder]: For program point L6427-1(line 6427) no Hoare annotation was computed. [2023-11-28 20:32:21,399 INFO L902 garLoopResultBuilder]: At program point L6427(line 6427) the Hoare annotation is: true [2023-11-28 20:32:21,399 INFO L899 garLoopResultBuilder]: For program point L6807(line 6807) no Hoare annotation was computed. [2023-11-28 20:32:21,399 INFO L899 garLoopResultBuilder]: For program point scsi_tgt_transfer_response_returnLabel#1(lines 6797 6812) no Hoare annotation was computed. [2023-11-28 20:32:21,399 INFO L899 garLoopResultBuilder]: For program point L7055-1(line 7055) no Hoare annotation was computed. [2023-11-28 20:32:21,399 INFO L902 garLoopResultBuilder]: At program point L7055(line 7055) the Hoare annotation is: true [2023-11-28 20:32:21,400 INFO L899 garLoopResultBuilder]: For program point L6940(lines 6940 6944) no Hoare annotation was computed. [2023-11-28 20:32:21,400 INFO L899 garLoopResultBuilder]: For program point L6973-1(line 6973) no Hoare annotation was computed. [2023-11-28 20:32:21,400 INFO L902 garLoopResultBuilder]: At program point L6973(line 6973) the Hoare annotation is: true [2023-11-28 20:32:21,400 INFO L899 garLoopResultBuilder]: For program point L6858(lines 6858 6862) no Hoare annotation was computed. [2023-11-28 20:32:21,400 INFO L899 garLoopResultBuilder]: For program point L7469(line 7469) no Hoare annotation was computed. [2023-11-28 20:32:21,400 INFO L902 garLoopResultBuilder]: At program point L6974(line 6974) the Hoare annotation is: true [2023-11-28 20:32:21,400 INFO L899 garLoopResultBuilder]: For program point L7007-1(line 7007) no Hoare annotation was computed. [2023-11-28 20:32:21,400 INFO L902 garLoopResultBuilder]: At program point L7007(line 7007) the Hoare annotation is: true [2023-11-28 20:32:21,400 INFO L899 garLoopResultBuilder]: For program point scsi_tgt_kspace_it_nexus_rsp_returnLabel#1(lines 7048 7069) no Hoare annotation was computed. [2023-11-28 20:32:21,400 INFO L899 garLoopResultBuilder]: For program point L6941-1(line 6941) no Hoare annotation was computed. [2023-11-28 20:32:21,401 INFO L902 garLoopResultBuilder]: At program point L6941(line 6941) the Hoare annotation is: true [2023-11-28 20:32:21,401 INFO L899 garLoopResultBuilder]: For program point L6974-1(line 6974) no Hoare annotation was computed. [2023-11-28 20:32:21,401 INFO L899 garLoopResultBuilder]: For program point L6859-1(line 6859) no Hoare annotation was computed. [2023-11-28 20:32:21,401 INFO L902 garLoopResultBuilder]: At program point L6859(line 6859) the Hoare annotation is: true [2023-11-28 20:32:21,401 INFO L899 garLoopResultBuilder]: For program point scsi_tgt_kspace_exec_returnLabel#1(lines 6920 6987) no Hoare annotation was computed. [2023-11-28 20:32:21,401 INFO L902 garLoopResultBuilder]: At program point L6430(line 6430) the Hoare annotation is: true [2023-11-28 20:32:21,401 INFO L902 garLoopResultBuilder]: At program point L6975-1(line 6975) the Hoare annotation is: true [2023-11-28 20:32:21,401 INFO L899 garLoopResultBuilder]: For program point L7487(lines 7485 7499) no Hoare annotation was computed. [2023-11-28 20:32:21,401 INFO L902 garLoopResultBuilder]: At program point L6975(line 6975) the Hoare annotation is: true [2023-11-28 20:32:21,401 INFO L899 garLoopResultBuilder]: For program point L7008(lines 7008 7012) no Hoare annotation was computed. [2023-11-28 20:32:21,401 INFO L899 garLoopResultBuilder]: For program point L6876-1(line 6876) no Hoare annotation was computed. [2023-11-28 20:32:21,402 INFO L902 garLoopResultBuilder]: At program point L6876(line 6876) the Hoare annotation is: true [2023-11-28 20:32:21,402 INFO L899 garLoopResultBuilder]: For program point L6430-1(line 6430) no Hoare annotation was computed. [2023-11-28 20:32:21,402 INFO L899 garLoopResultBuilder]: For program point L6893-1(line 6893) no Hoare annotation was computed. [2023-11-28 20:32:21,402 INFO L902 garLoopResultBuilder]: At program point L6893(line 6893) the Hoare annotation is: true [2023-11-28 20:32:21,402 INFO L899 garLoopResultBuilder]: For program point L7488-1(line 7488) no Hoare annotation was computed. [2023-11-28 20:32:21,402 INFO L899 garLoopResultBuilder]: For program point L6431(lines 6431 6435) no Hoare annotation was computed. [2023-11-28 20:32:21,402 INFO L902 garLoopResultBuilder]: At program point L7488(line 7488) the Hoare annotation is: true [2023-11-28 20:32:21,402 INFO L899 garLoopResultBuilder]: For program point L7009-1(line 7009) no Hoare annotation was computed. [2023-11-28 20:32:21,402 INFO L902 garLoopResultBuilder]: At program point L7009(line 7009) the Hoare annotation is: true [2023-11-28 20:32:21,402 INFO L902 garLoopResultBuilder]: At program point L6431-2(lines 6431 6435) the Hoare annotation is: true [2023-11-28 20:32:21,403 INFO L899 garLoopResultBuilder]: For program point L7059(lines 7059 7063) no Hoare annotation was computed. [2023-11-28 20:32:21,403 INFO L899 garLoopResultBuilder]: For program point L6960-2(lines 6932 6986) no Hoare annotation was computed. [2023-11-28 20:32:21,403 INFO L899 garLoopResultBuilder]: For program point L6960(lines 6960 6963) no Hoare annotation was computed. [2023-11-28 20:32:21,403 INFO L899 garLoopResultBuilder]: For program point L7489(lines 7489 7492) no Hoare annotation was computed. [2023-11-28 20:32:21,403 INFO L899 garLoopResultBuilder]: For program point L7060-1(line 7060) no Hoare annotation was computed. [2023-11-28 20:32:21,403 INFO L902 garLoopResultBuilder]: At program point L7060(line 7060) the Hoare annotation is: true [2023-11-28 20:32:21,403 INFO L899 garLoopResultBuilder]: For program point L6895-1(line 6895) no Hoare annotation was computed. [2023-11-28 20:32:21,403 INFO L902 garLoopResultBuilder]: At program point L6895(line 6895) the Hoare annotation is: true [2023-11-28 20:32:21,403 INFO L899 garLoopResultBuilder]: For program point L7473(line 7473) no Hoare annotation was computed. [2023-11-28 20:32:21,403 INFO L902 garLoopResultBuilder]: At program point L7474(line 7474) the Hoare annotation is: true [2023-11-28 20:32:21,403 INFO L899 garLoopResultBuilder]: For program point L6830(lines 6830 6834) no Hoare annotation was computed. [2023-11-28 20:32:21,404 INFO L899 garLoopResultBuilder]: For program point L6896-1(line 6896) no Hoare annotation was computed. [2023-11-28 20:32:21,404 INFO L902 garLoopResultBuilder]: At program point L6896(line 6896) the Hoare annotation is: true [2023-11-28 20:32:21,404 INFO L899 garLoopResultBuilder]: For program point L7474-1(line 7474) no Hoare annotation was computed. [2023-11-28 20:32:21,404 INFO L899 garLoopResultBuilder]: For program point L6946(lines 6946 6951) no Hoare annotation was computed. [2023-11-28 20:32:21,404 INFO L899 garLoopResultBuilder]: For program point L7458(lines 7458 7476) no Hoare annotation was computed. [2023-11-28 20:32:21,404 INFO L902 garLoopResultBuilder]: At program point L6831-1(lines 6818 6840) the Hoare annotation is: true [2023-11-28 20:32:21,404 INFO L902 garLoopResultBuilder]: At program point L6831(line 6831) the Hoare annotation is: true [2023-11-28 20:32:21,404 INFO L899 garLoopResultBuilder]: For program point L6947-1(line 6947) no Hoare annotation was computed. [2023-11-28 20:32:21,404 INFO L899 garLoopResultBuilder]: For program point L7459(line 7459) no Hoare annotation was computed. [2023-11-28 20:32:21,404 INFO L902 garLoopResultBuilder]: At program point L6947(line 6947) the Hoare annotation is: true [2023-11-28 20:32:21,404 INFO L899 garLoopResultBuilder]: For program point L7013(lines 7013 7017) no Hoare annotation was computed. [2023-11-28 20:32:21,404 INFO L899 garLoopResultBuilder]: For program point L6964-1(lines 6964 6981) no Hoare annotation was computed. [2023-11-28 20:32:21,404 INFO L902 garLoopResultBuilder]: At program point L7014(line 7014) the Hoare annotation is: true [2023-11-28 20:32:21,405 INFO L899 garLoopResultBuilder]: For program point L7493-1(line 7493) no Hoare annotation was computed. [2023-11-28 20:32:21,405 INFO L899 garLoopResultBuilder]: For program point L6436(line 6436) no Hoare annotation was computed. [2023-11-28 20:32:21,405 INFO L902 garLoopResultBuilder]: At program point L7493(line 7493) the Hoare annotation is: true [2023-11-28 20:32:21,405 INFO L899 garLoopResultBuilder]: For program point L7014-1(line 7014) no Hoare annotation was computed. [2023-11-28 20:32:21,405 INFO L899 garLoopResultBuilder]: For program point L7477(lines 7456 7479) no Hoare annotation was computed. [2023-11-28 20:32:21,405 INFO L899 garLoopResultBuilder]: For program point L6916(line 6916) no Hoare annotation was computed. [2023-11-28 20:32:21,405 INFO L902 garLoopResultBuilder]: At program point L7065(lines 7051 7068) the Hoare annotation is: true [2023-11-28 20:32:21,405 INFO L899 garLoopResultBuilder]: For program point L6421-1(line 6421) no Hoare annotation was computed. [2023-11-28 20:32:21,405 INFO L902 garLoopResultBuilder]: At program point L6421(line 6421) the Hoare annotation is: true [2023-11-28 20:32:21,405 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 7481 7500) the Hoare annotation is: (let ((.cse0 (not (= ~ldv_state_variable_0~0 3))) (.cse1 (and (= |old(#length)| |#length|) (= |#memory_int#4| |old(#memory_int#4)|) (= |old(#memory_$Pointer$#4.base)| |#memory_$Pointer$#4.base|) (= |old(#valid)| |#valid|) (= |#memory_$Pointer$#4.offset| |old(#memory_$Pointer$#4.offset)|)))) (and (or (< ~ref_cnt~0 0) (not (= ~ldv_state_variable_1~0 1)) (< 0 ~ref_cnt~0) .cse0 .cse1) (or (not (= ~ldv_state_variable_1~0 2)) .cse0 (< 1 ~ref_cnt~0) .cse1 (< ~ref_cnt~0 1)))) [2023-11-28 20:32:21,405 INFO L902 garLoopResultBuilder]: At program point L6983(lines 6932 6986) the Hoare annotation is: true [2023-11-28 20:32:21,405 INFO L899 garLoopResultBuilder]: For program point $Ultimate##12(lines 6910 6914) no Hoare annotation was computed. [2023-11-28 20:32:21,406 INFO L899 garLoopResultBuilder]: For program point L7066(line 7066) no Hoare annotation was computed. [2023-11-28 20:32:21,406 INFO L902 garLoopResultBuilder]: At program point L6934(line 6934) the Hoare annotation is: true [2023-11-28 20:32:21,406 INFO L899 garLoopResultBuilder]: For program point L6422(lines 6422 6438) no Hoare annotation was computed. [2023-11-28 20:32:21,406 INFO L899 garLoopResultBuilder]: For program point L6967(lines 6967 6979) no Hoare annotation was computed. [2023-11-28 20:32:21,406 INFO L902 garLoopResultBuilder]: At program point L6802(line 6802) the Hoare annotation is: true [2023-11-28 20:32:21,406 INFO L899 garLoopResultBuilder]: For program point L6934-1(line 6934) no Hoare annotation was computed. [2023-11-28 20:32:21,406 INFO L899 garLoopResultBuilder]: For program point L6901(lines 6901 6906) no Hoare annotation was computed. [2023-11-28 20:32:21,406 INFO L899 garLoopResultBuilder]: For program point L6802-1(line 6802) no Hoare annotation was computed. [2023-11-28 20:32:21,406 INFO L899 garLoopResultBuilder]: For program point L6984(line 6984) no Hoare annotation was computed. [2023-11-28 20:32:21,406 INFO L899 garLoopResultBuilder]: For program point scsi_tgt_kspace_tsk_mgmt_returnLabel#1(lines 7002 7023) no Hoare annotation was computed. [2023-11-28 20:32:21,406 INFO L899 garLoopResultBuilder]: For program point L6852-2(lines 6852 6856) no Hoare annotation was computed. [2023-11-28 20:32:21,407 INFO L899 garLoopResultBuilder]: For program point L6852(lines 6852 6856) no Hoare annotation was computed. [2023-11-28 20:32:21,407 INFO L899 garLoopResultBuilder]: For program point L6423-1(line 6423) no Hoare annotation was computed. [2023-11-28 20:32:21,407 INFO L899 garLoopResultBuilder]: For program point L6935(lines 6935 6939) no Hoare annotation was computed. [2023-11-28 20:32:21,407 INFO L902 garLoopResultBuilder]: At program point L6423(line 6423) the Hoare annotation is: true [2023-11-28 20:32:21,407 INFO L899 garLoopResultBuilder]: For program point L6968-1(lines 6968 6969) no Hoare annotation was computed. [2023-11-28 20:32:21,407 INFO L902 garLoopResultBuilder]: At program point L6968(lines 6968 6969) the Hoare annotation is: true [2023-11-28 20:32:21,407 INFO L899 garLoopResultBuilder]: For program point tgt_writeEXIT(lines 7481 7500) no Hoare annotation was computed. [2023-11-28 20:32:21,407 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-28 20:32:21,407 INFO L902 garLoopResultBuilder]: At program point L-1-1(line -1) the Hoare annotation is: true [2023-11-28 20:32:21,407 INFO L899 garLoopResultBuilder]: For program point L-1-2(line -1) no Hoare annotation was computed. [2023-11-28 20:32:21,408 INFO L899 garLoopResultBuilder]: For program point L-1-4(line -1) no Hoare annotation was computed. [2023-11-28 20:32:21,408 INFO L902 garLoopResultBuilder]: At program point L-1-5(line -1) the Hoare annotation is: true [2023-11-28 20:32:21,408 INFO L902 garLoopResultBuilder]: At program point L6903-1(lines 6890 6918) the Hoare annotation is: true [2023-11-28 20:32:21,408 INFO L902 garLoopResultBuilder]: At program point L6870(line 6870) the Hoare annotation is: true [2023-11-28 20:32:21,408 INFO L899 garLoopResultBuilder]: For program point L-1-6(line -1) no Hoare annotation was computed. [2023-11-28 20:32:21,408 INFO L899 garLoopResultBuilder]: For program point L6936-1(line 6936) no Hoare annotation was computed. [2023-11-28 20:32:21,408 INFO L902 garLoopResultBuilder]: At program point L6903(line 6903) the Hoare annotation is: true [2023-11-28 20:32:21,408 INFO L902 garLoopResultBuilder]: At program point L6936(line 6936) the Hoare annotation is: true [2023-11-28 20:32:21,408 INFO L902 garLoopResultBuilder]: At program point L-1-8(line -1) the Hoare annotation is: true [2023-11-28 20:32:21,409 INFO L899 garLoopResultBuilder]: For program point L-1-9(line -1) no Hoare annotation was computed. [2023-11-28 20:32:21,409 INFO L899 garLoopResultBuilder]: For program point L-1-10(line -1) no Hoare annotation was computed. [2023-11-28 20:32:21,409 INFO L899 garLoopResultBuilder]: For program point L6870-1(line 6870) no Hoare annotation was computed. [2023-11-28 20:32:21,409 INFO L902 garLoopResultBuilder]: At program point L7019(lines 7005 7022) the Hoare annotation is: true [2023-11-28 20:32:21,409 INFO L899 garLoopResultBuilder]: For program point scsi_tgt_copy_sense_returnLabel#1(lines 6842 6865) no Hoare annotation was computed. [2023-11-28 20:32:21,409 INFO L899 garLoopResultBuilder]: For program point L6953(lines 6953 6957) no Hoare annotation was computed. [2023-11-28 20:32:21,409 INFO L899 garLoopResultBuilder]: For program point L7465(line 7465) no Hoare annotation was computed. [2023-11-28 20:32:21,409 INFO L899 garLoopResultBuilder]: For program point L6838(line 6838) no Hoare annotation was computed. [2023-11-28 20:32:21,409 INFO L899 garLoopResultBuilder]: For program point L6871(lines 6871 6874) no Hoare annotation was computed. [2023-11-28 20:32:21,409 INFO L899 garLoopResultBuilder]: For program point L6425-1(line 6425) no Hoare annotation was computed. [2023-11-28 20:32:21,410 INFO L902 garLoopResultBuilder]: At program point L6425(line 6425) the Hoare annotation is: true [2023-11-28 20:32:21,410 INFO L899 garLoopResultBuilder]: For program point L6871-2(lines 6871 6874) no Hoare annotation was computed. [2023-11-28 20:32:21,410 INFO L899 garLoopResultBuilder]: For program point L7020(line 7020) no Hoare annotation was computed. [2023-11-28 20:32:21,410 INFO L899 garLoopResultBuilder]: For program point L7053-1(line 7053) no Hoare annotation was computed. [2023-11-28 20:32:21,410 INFO L902 garLoopResultBuilder]: At program point L7053(line 7053) the Hoare annotation is: true [2023-11-28 20:32:21,410 INFO L899 garLoopResultBuilder]: For program point L6822(lines 6822 6827) no Hoare annotation was computed. [2023-11-28 20:32:21,410 INFO L899 garLoopResultBuilder]: For program point scsi_map_user_pages_returnLabel#1(lines 6813 6841) no Hoare annotation was computed. [2023-11-28 20:32:21,410 INFO L899 garLoopResultBuilder]: For program point L6426(lines 6426 6437) no Hoare annotation was computed. [2023-11-28 20:32:21,410 INFO L899 garLoopResultBuilder]: For program point L6971-1(line 6971) no Hoare annotation was computed. [2023-11-28 20:32:21,410 INFO L902 garLoopResultBuilder]: At program point L6971(line 6971) the Hoare annotation is: true [2023-11-28 20:32:21,410 INFO L899 garLoopResultBuilder]: For program point L6806(line 6806) no Hoare annotation was computed. [2023-11-28 20:32:21,411 INFO L899 garLoopResultBuilder]: For program point L6872-1(line 6872) no Hoare annotation was computed. [2023-11-28 20:32:21,411 INFO L902 garLoopResultBuilder]: At program point L6872(line 6872) the Hoare annotation is: true [2023-11-28 20:32:21,411 INFO L899 garLoopResultBuilder]: For program point L6426-2(lines 6422 6438) no Hoare annotation was computed. [2023-11-28 20:32:21,411 INFO L899 garLoopResultBuilder]: For program point L6806-2(line 6806) no Hoare annotation was computed. [2023-11-28 20:32:21,411 INFO L899 garLoopResultBuilder]: For program point L7054(lines 7054 7058) no Hoare annotation was computed. [2023-11-28 20:32:21,411 INFO L899 garLoopResultBuilder]: For program point L6823-1(lines 6823 6824) no Hoare annotation was computed. [2023-11-28 20:32:21,411 INFO L902 garLoopResultBuilder]: At program point L6823(lines 6823 6824) the Hoare annotation is: true [2023-11-28 20:32:21,411 INFO L899 garLoopResultBuilder]: For program point L7616-1(lines 7616 7617) no Hoare annotation was computed. [2023-11-28 20:32:21,411 INFO L895 garLoopResultBuilder]: At program point L7616(lines 7616 7617) the Hoare annotation is: (or (not (= ~ldv_state_variable_1~0 0)) (not (= ~ldv_retval_1~0 0)) (and (= |#memory_int#4| |old(#memory_int#4)|) (= |old(#memory_$Pointer$#4.base)| |#memory_$Pointer$#4.base|) (= |#memory_$Pointer$#4.offset| |old(#memory_$Pointer$#4.offset)|)) (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_0~0 1))) [2023-11-28 20:32:21,412 INFO L899 garLoopResultBuilder]: For program point tgt_ring_initFINAL(lines 7611 7637) no Hoare annotation was computed. [2023-11-28 20:32:21,412 INFO L899 garLoopResultBuilder]: For program point L7627-1(line 7627) no Hoare annotation was computed. [2023-11-28 20:32:21,412 INFO L899 garLoopResultBuilder]: For program point L7627(line 7627) no Hoare annotation was computed. [2023-11-28 20:32:21,412 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 7611 7637) the Hoare annotation is: (or (not (= ~ldv_state_variable_1~0 0)) (not (= ~ldv_retval_1~0 0)) (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_0~0 1)) (and (= |old(#length)| |#length|) (= |#memory_int#4| |old(#memory_int#4)|) (= |old(#memory_$Pointer$#4.base)| |#memory_$Pointer$#4.base|) (= |old(#valid)| |#valid|) (= |#memory_$Pointer$#4.offset| |old(#memory_$Pointer$#4.offset)|))) [2023-11-28 20:32:21,412 INFO L899 garLoopResultBuilder]: For program point L7623-1(line 7623) no Hoare annotation was computed. [2023-11-28 20:32:21,412 INFO L895 garLoopResultBuilder]: At program point L7623(line 7623) the Hoare annotation is: (or (not (= ~ldv_state_variable_1~0 0)) (not (= ~ldv_retval_1~0 0)) (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_0~0 1)) (and (<= |tgt_ring_init_~i~4#1| 2147483645) (<= 0 |tgt_ring_init_~i~4#1|))) [2023-11-28 20:32:21,412 INFO L899 garLoopResultBuilder]: For program point tgt_ring_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7627) no Hoare annotation was computed. [2023-11-28 20:32:21,412 INFO L899 garLoopResultBuilder]: For program point $Ultimate##4(lines 7629 7633) no Hoare annotation was computed. [2023-11-28 20:32:21,413 INFO L899 garLoopResultBuilder]: For program point L7615-1(line 7615) no Hoare annotation was computed. [2023-11-28 20:32:21,413 INFO L895 garLoopResultBuilder]: At program point L7615(line 7615) the Hoare annotation is: (or (not (= ~ldv_state_variable_1~0 0)) (not (= ~ldv_retval_1~0 0)) (and (= |#memory_int#4| |old(#memory_int#4)|) (= |old(#memory_$Pointer$#4.base)| |#memory_$Pointer$#4.base|) (= |#memory_$Pointer$#4.offset| |old(#memory_$Pointer$#4.offset)|)) (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_0~0 1))) [2023-11-28 20:32:21,413 INFO L899 garLoopResultBuilder]: For program point tgt_ring_initEXIT(lines 7611 7637) no Hoare annotation was computed. [2023-11-28 20:32:21,413 INFO L899 garLoopResultBuilder]: For program point L7622(lines 7622 7626) no Hoare annotation was computed. [2023-11-28 20:32:21,413 INFO L899 garLoopResultBuilder]: For program point tgt_ring_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7627) no Hoare annotation was computed. [2023-11-28 20:32:21,413 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 7842 7847) the Hoare annotation is: true [2023-11-28 20:32:21,413 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-11-28 20:32:21,413 INFO L899 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2023-11-28 20:32:21,413 INFO L899 garLoopResultBuilder]: For program point ldv_errorEXIT(lines 7842 7847) no Hoare annotation was computed. [2023-11-28 20:32:21,413 INFO L899 garLoopResultBuilder]: For program point list_delEXIT(lines 8290 8292) no Hoare annotation was computed. [2023-11-28 20:32:21,414 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8290 8292) the Hoare annotation is: true [2023-11-28 20:32:21,414 INFO L899 garLoopResultBuilder]: For program point kmem_cache_freeEXIT(lines 8283 8285) no Hoare annotation was computed. [2023-11-28 20:32:21,414 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8283 8285) the Hoare annotation is: true [2023-11-28 20:32:21,414 INFO L899 garLoopResultBuilder]: For program point L7519(line 7519) no Hoare annotation was computed. [2023-11-28 20:32:21,414 INFO L899 garLoopResultBuilder]: For program point L7521-2(line 7521) no Hoare annotation was computed. [2023-11-28 20:32:21,414 INFO L899 garLoopResultBuilder]: For program point L7521(line 7521) no Hoare annotation was computed. [2023-11-28 20:32:21,414 INFO L899 garLoopResultBuilder]: For program point L7261-2(lines 7261 7266) no Hoare annotation was computed. [2023-11-28 20:32:21,414 INFO L899 garLoopResultBuilder]: For program point L7261(lines 7261 7263) no Hoare annotation was computed. [2023-11-28 20:32:21,414 INFO L899 garLoopResultBuilder]: For program point L7521-4(line 7521) no Hoare annotation was computed. [2023-11-28 20:32:21,414 INFO L899 garLoopResultBuilder]: For program point L7513-1(line 7513) no Hoare annotation was computed. [2023-11-28 20:32:21,415 INFO L899 garLoopResultBuilder]: For program point L7261-4(lines 7257 7269) no Hoare annotation was computed. [2023-11-28 20:32:21,415 INFO L902 garLoopResultBuilder]: At program point L7513(line 7513) the Hoare annotation is: true [2023-11-28 20:32:21,415 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7501 7527) the Hoare annotation is: true [2023-11-28 20:32:21,415 INFO L899 garLoopResultBuilder]: For program point L7524(line 7524) no Hoare annotation was computed. [2023-11-28 20:32:21,415 INFO L902 garLoopResultBuilder]: At program point L7520-2(lines 7520 7523) the Hoare annotation is: true [2023-11-28 20:32:21,415 INFO L899 garLoopResultBuilder]: For program point L7520(lines 7520 7523) no Hoare annotation was computed. [2023-11-28 20:32:21,415 INFO L899 garLoopResultBuilder]: For program point L7514(lines 7514 7518) no Hoare annotation was computed. [2023-11-28 20:32:21,415 INFO L899 garLoopResultBuilder]: For program point L7512-1(line 7512) no Hoare annotation was computed. [2023-11-28 20:32:21,415 INFO L902 garLoopResultBuilder]: At program point L7512(line 7512) the Hoare annotation is: true [2023-11-28 20:32:21,415 INFO L902 garLoopResultBuilder]: At program point L7514-2(lines 7514 7518) the Hoare annotation is: true [2023-11-28 20:32:21,416 INFO L899 garLoopResultBuilder]: For program point tgt_pollEXIT(lines 7501 7527) no Hoare annotation was computed. [2023-11-28 20:32:21,416 INFO L899 garLoopResultBuilder]: For program point _raw_spin_lock_irqsaveEXIT(lines 8235 8237) no Hoare annotation was computed. [2023-11-28 20:32:21,416 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8235 8237) the Hoare annotation is: true [2023-11-28 20:32:21,416 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7849 7854) the Hoare annotation is: true [2023-11-28 20:32:21,416 INFO L899 garLoopResultBuilder]: For program point ldv__builtin_expectEXIT(lines 7849 7854) no Hoare annotation was computed. [2023-11-28 20:32:21,416 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 7580 7587) the Hoare annotation is: (let ((.cse0 (and (= |#memory_int#4| |old(#memory_int#4)|) (= |old(#memory_$Pointer$#4.base)| |#memory_$Pointer$#4.base|) (= |#memory_$Pointer$#4.offset| |old(#memory_$Pointer$#4.offset)|))) (.cse1 (not (= ~ldv_state_variable_0~0 3)))) (and (or .cse0 (< ~ref_cnt~0 0) (not (= ~ldv_state_variable_1~0 1)) (< 0 ~ref_cnt~0) .cse1) (or .cse0 (not (= ~ldv_state_variable_1~0 2)) .cse1 (< 1 ~ref_cnt~0) (< ~ref_cnt~0 1)))) [2023-11-28 20:32:21,416 INFO L899 garLoopResultBuilder]: For program point tgt_openEXIT(lines 7580 7587) no Hoare annotation was computed. [2023-11-28 20:32:21,416 INFO L899 garLoopResultBuilder]: For program point L8333-1(line 8333) no Hoare annotation was computed. [2023-11-28 20:32:21,417 INFO L895 garLoopResultBuilder]: At program point L8333(line 8333) the Hoare annotation is: (let ((.cse0 (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) (.cse1 (not (= ~ldv_state_variable_0~0 3)))) (and (or (< ~ref_cnt~0 0) (not (= ~ldv_state_variable_1~0 1)) (< 0 ~ref_cnt~0) .cse0 .cse1) (or (not (= ~ldv_state_variable_1~0 2)) .cse0 .cse1 (< 1 ~ref_cnt~0) (< ~ref_cnt~0 1)))) [2023-11-28 20:32:21,417 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 8332 8334) the Hoare annotation is: (let ((.cse0 (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) (.cse1 (not (= ~ldv_state_variable_0~0 3)))) (and (or (< ~ref_cnt~0 0) (not (= ~ldv_state_variable_1~0 1)) (< 0 ~ref_cnt~0) .cse0 .cse1) (or (not (= ~ldv_state_variable_1~0 2)) .cse0 .cse1 (< 1 ~ref_cnt~0) (< ~ref_cnt~0 1)))) [2023-11-28 20:32:21,417 INFO L899 garLoopResultBuilder]: For program point scsi_host_lookupEXIT(lines 8332 8334) no Hoare annotation was computed. [2023-11-28 20:32:21,417 INFO L899 garLoopResultBuilder]: For program point L7576-1(line 7576) no Hoare annotation was computed. [2023-11-28 20:32:21,417 INFO L902 garLoopResultBuilder]: At program point L7576(line 7576) the Hoare annotation is: true [2023-11-28 20:32:21,417 INFO L899 garLoopResultBuilder]: For program point L7571-1(line 7571) no Hoare annotation was computed. [2023-11-28 20:32:21,417 INFO L899 garLoopResultBuilder]: For program point tgt_mmapEXIT(lines 7556 7579) no Hoare annotation was computed. [2023-11-28 20:32:21,417 INFO L902 garLoopResultBuilder]: At program point L7571(line 7571) the Hoare annotation is: true [2023-11-28 20:32:21,417 INFO L899 garLoopResultBuilder]: For program point L7572(lines 7572 7575) no Hoare annotation was computed. [2023-11-28 20:32:21,417 INFO L899 garLoopResultBuilder]: For program point tgt_mmapFINAL(lines 7556 7579) no Hoare annotation was computed. [2023-11-28 20:32:21,418 INFO L899 garLoopResultBuilder]: For program point L7564(lines 7564 7569) no Hoare annotation was computed. [2023-11-28 20:32:21,418 INFO L899 garLoopResultBuilder]: For program point L7565-1(lines 7565 7566) no Hoare annotation was computed. [2023-11-28 20:32:21,418 INFO L902 garLoopResultBuilder]: At program point L7565(lines 7565 7566) the Hoare annotation is: true [2023-11-28 20:32:21,418 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7556 7579) the Hoare annotation is: true [2023-11-28 20:32:21,418 INFO L899 garLoopResultBuilder]: For program point L7560(lines 7560 7563) no Hoare annotation was computed. [2023-11-28 20:32:21,418 INFO L899 garLoopResultBuilder]: For program point kmem_cache_destroyEXIT(lines 8280 8282) no Hoare annotation was computed. [2023-11-28 20:32:21,418 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8280 8282) the Hoare annotation is: true [2023-11-28 20:32:21,418 INFO L899 garLoopResultBuilder]: For program point _copy_from_userEXIT(lines 8231 8233) no Hoare annotation was computed. [2023-11-28 20:32:21,418 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8231 8233) the Hoare annotation is: true [2023-11-28 20:32:21,418 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7750) no Hoare annotation was computed. [2023-11-28 20:32:21,419 INFO L899 garLoopResultBuilder]: For program point L7699-1(line 7699) no Hoare annotation was computed. [2023-11-28 20:32:21,419 INFO L895 garLoopResultBuilder]: At program point L7699(line 7699) the Hoare annotation is: (and (= ~ldv_state_variable_1~0 2) (= ~ref_cnt~0 1) (= ~ldv_state_variable_0~0 3)) [2023-11-28 20:32:21,419 INFO L899 garLoopResultBuilder]: For program point scsi_tgt_init_returnLabel#1(lines 7070 7101) no Hoare annotation was computed. [2023-11-28 20:32:21,419 INFO L895 garLoopResultBuilder]: At program point L7650(line 7650) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= ~ldv_retval_1~0 0) (= ~ldv_state_variable_1~0 0) (= ~ref_cnt~0 0)) [2023-11-28 20:32:21,419 INFO L899 garLoopResultBuilder]: For program point L7716-1(line 7716) no Hoare annotation was computed. [2023-11-28 20:32:21,419 INFO L899 garLoopResultBuilder]: For program point L7716(line 7716) no Hoare annotation was computed. [2023-11-28 20:32:21,419 INFO L899 garLoopResultBuilder]: For program point L7105-1(line 7105) no Hoare annotation was computed. [2023-11-28 20:32:21,419 INFO L899 garLoopResultBuilder]: For program point L7716-3(line 7716) no Hoare annotation was computed. [2023-11-28 20:32:21,419 INFO L902 garLoopResultBuilder]: At program point L7105(line 7105) the Hoare annotation is: true [2023-11-28 20:32:21,419 INFO L899 garLoopResultBuilder]: For program point L7650-1(line 7650) no Hoare annotation was computed. [2023-11-28 20:32:21,419 INFO L895 garLoopResultBuilder]: At program point L8278(line 8278) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= ~ldv_retval_1~0 0) (= ~ldv_state_variable_1~0 0) (= ~ref_cnt~0 0)) [2023-11-28 20:32:21,420 INFO L895 garLoopResultBuilder]: At program point L7667(lines 7649 7671) the Hoare annotation is: (let ((.cse0 (= ~ldv_state_variable_0~0 1)) (.cse1 (= ~ldv_retval_1~0 0)) (.cse2 (= ~ref_cnt~0 0))) (or (and .cse0 .cse1 (= ~ldv_state_variable_1~0 1) .cse2) (and .cse0 .cse1 (= ~ldv_state_variable_1~0 0) .cse2))) [2023-11-28 20:32:21,420 INFO L899 garLoopResultBuilder]: For program point L8278-1(line 8278) no Hoare annotation was computed. [2023-11-28 20:32:21,420 INFO L899 garLoopResultBuilder]: For program point L7750(line 7750) no Hoare annotation was computed. [2023-11-28 20:32:21,420 INFO L899 garLoopResultBuilder]: For program point L7651(lines 7651 7654) no Hoare annotation was computed. [2023-11-28 20:32:21,420 INFO L899 garLoopResultBuilder]: For program point L7750-1(line 7750) no Hoare annotation was computed. [2023-11-28 20:32:21,420 INFO L899 garLoopResultBuilder]: For program point L7090(lines 7090 7093) no Hoare annotation was computed. [2023-11-28 20:32:21,420 INFO L899 garLoopResultBuilder]: For program point L7123(lines 7118 7174) no Hoare annotation was computed. [2023-11-28 20:32:21,420 INFO L895 garLoopResultBuilder]: At program point L7718(line 7718) the Hoare annotation is: (and (= ~ldv_state_variable_1~0 1) (= ~ref_cnt~0 0) (= ~ldv_state_variable_0~0 3)) [2023-11-28 20:32:21,420 INFO L899 garLoopResultBuilder]: For program point ldv_main_exported_1_returnLabel#1(lines 7687 7760) no Hoare annotation was computed. [2023-11-28 20:32:21,421 INFO L899 garLoopResultBuilder]: For program point L7107-1(lines 7102 7110) no Hoare annotation was computed. [2023-11-28 20:32:21,421 INFO L895 garLoopResultBuilder]: At program point L7107(line 7107) the Hoare annotation is: (= ~ldv_state_variable_1~0 0) [2023-11-28 20:32:21,421 INFO L899 garLoopResultBuilder]: For program point L8197-1(line 8197) no Hoare annotation was computed. [2023-11-28 20:32:21,421 INFO L899 garLoopResultBuilder]: For program point L7718-1(line 7718) no Hoare annotation was computed. [2023-11-28 20:32:21,421 INFO L895 garLoopResultBuilder]: At program point L8197(line 8197) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= ~ldv_retval_1~0 0) (= ~ldv_state_variable_1~0 0) (= ~ref_cnt~0 0)) [2023-11-28 20:32:21,421 INFO L899 garLoopResultBuilder]: For program point L7735-1(line 7735) no Hoare annotation was computed. [2023-11-28 20:32:21,421 INFO L899 garLoopResultBuilder]: For program point L7735(line 7735) no Hoare annotation was computed. [2023-11-28 20:32:21,421 INFO L899 garLoopResultBuilder]: For program point L7735-2(line 7735) no Hoare annotation was computed. [2023-11-28 20:32:21,421 INFO L899 garLoopResultBuilder]: For program point L7669(line 7669) no Hoare annotation was computed. [2023-11-28 20:32:21,421 INFO L899 garLoopResultBuilder]: For program point L8181(lines 8181 8184) no Hoare annotation was computed. [2023-11-28 20:32:21,422 INFO L899 garLoopResultBuilder]: For program point L7126(line 7126) no Hoare annotation was computed. [2023-11-28 20:32:21,422 INFO L899 garLoopResultBuilder]: For program point L8183-1(lines 8180 8194) no Hoare annotation was computed. [2023-11-28 20:32:21,422 INFO L899 garLoopResultBuilder]: For program point L7704-1(line 7704) no Hoare annotation was computed. [2023-11-28 20:32:21,422 INFO L902 garLoopResultBuilder]: At program point L8183(line 8183) the Hoare annotation is: true [2023-11-28 20:32:21,422 INFO L899 garLoopResultBuilder]: For program point L7704(line 7704) no Hoare annotation was computed. [2023-11-28 20:32:21,422 INFO L899 garLoopResultBuilder]: For program point L7737-1(line 7737) no Hoare annotation was computed. [2023-11-28 20:32:21,422 INFO L895 garLoopResultBuilder]: At program point L7737(line 7737) the Hoare annotation is: (and (= ~ldv_state_variable_1~0 1) (= ~ref_cnt~0 0) (= ~ldv_state_variable_0~0 3)) [2023-11-28 20:32:21,422 INFO L899 garLoopResultBuilder]: For program point L7126-1(line 7126) no Hoare annotation was computed. [2023-11-28 20:32:21,422 INFO L899 garLoopResultBuilder]: For program point L7704-3(line 7704) no Hoare annotation was computed. [2023-11-28 20:32:21,422 INFO L899 garLoopResultBuilder]: For program point L7754(line 7754) no Hoare annotation was computed. [2023-11-28 20:32:21,422 INFO L899 garLoopResultBuilder]: For program point L7655-1(line 7655) no Hoare annotation was computed. [2023-11-28 20:32:21,423 INFO L895 garLoopResultBuilder]: At program point L7655(line 7655) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= ~ldv_retval_1~0 0) (= ~ldv_state_variable_1~0 0) (= ~ref_cnt~0 0)) [2023-11-28 20:32:21,423 INFO L899 garLoopResultBuilder]: For program point L7077(lines 7077 7080) no Hoare annotation was computed. [2023-11-28 20:32:21,423 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-28 20:32:21,423 INFO L899 garLoopResultBuilder]: For program point L7656(lines 7656 7659) no Hoare annotation was computed. [2023-11-28 20:32:21,423 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7750) no Hoare annotation was computed. [2023-11-28 20:32:21,423 INFO L895 garLoopResultBuilder]: At program point L7706(line 7706) the Hoare annotation is: (and (= ~ldv_state_variable_1~0 1) (= ~ref_cnt~0 0) (= ~ldv_state_variable_0~0 3)) [2023-11-28 20:32:21,423 INFO L899 garLoopResultBuilder]: For program point L7706-1(line 7706) no Hoare annotation was computed. [2023-11-28 20:32:21,423 INFO L899 garLoopResultBuilder]: For program point L7723-1(line 7723) no Hoare annotation was computed. [2023-11-28 20:32:21,423 INFO L895 garLoopResultBuilder]: At program point L7723(line 7723) the Hoare annotation is: (and (= ~ldv_state_variable_1~0 2) (= ~ref_cnt~0 1) (= ~ldv_state_variable_0~0 3)) [2023-11-28 20:32:21,423 INFO L899 garLoopResultBuilder]: For program point L7740-1(line 7740) no Hoare annotation was computed. [2023-11-28 20:32:21,423 INFO L899 garLoopResultBuilder]: For program point L7740(line 7740) no Hoare annotation was computed. [2023-11-28 20:32:21,423 INFO L902 garLoopResultBuilder]: At program point L7641-1(line 7641) the Hoare annotation is: true [2023-11-28 20:32:21,424 INFO L895 garLoopResultBuilder]: At program point L7096(lines 7075 7100) the Hoare annotation is: (let ((.cse0 (= ~ldv_state_variable_0~0 1)) (.cse1 (= ~ldv_retval_1~0 0)) (.cse2 (= ~ref_cnt~0 0))) (or (and .cse0 (<= (+ |ULTIMATE.start_scsi_tgt_init_~err~11#1| 12) 0)) (and .cse0 .cse1 (= ~ldv_state_variable_1~0 1) .cse2) (and .cse0 .cse1 (= ~ldv_state_variable_1~0 0) .cse2))) [2023-11-28 20:32:21,424 INFO L902 garLoopResultBuilder]: At program point L7641(line 7641) the Hoare annotation is: true [2023-11-28 20:32:21,424 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7740) no Hoare annotation was computed. [2023-11-28 20:32:21,424 INFO L899 garLoopResultBuilder]: For program point L7642(line 7642) no Hoare annotation was computed. [2023-11-28 20:32:21,424 INFO L899 garLoopResultBuilder]: For program point L8187-1(lines 8180 8194) no Hoare annotation was computed. [2023-11-28 20:32:21,424 INFO L902 garLoopResultBuilder]: At program point L8187(line 8187) the Hoare annotation is: true [2023-11-28 20:32:21,424 INFO L899 garLoopResultBuilder]: For program point L7692-1(line 7692) no Hoare annotation was computed. [2023-11-28 20:32:21,424 INFO L899 garLoopResultBuilder]: For program point L7692(line 7692) no Hoare annotation was computed. [2023-11-28 20:32:21,424 INFO L899 garLoopResultBuilder]: For program point L7692-3(line 7692) no Hoare annotation was computed. [2023-11-28 20:32:21,424 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7740) no Hoare annotation was computed. [2023-11-28 20:32:21,424 INFO L899 garLoopResultBuilder]: For program point L7098(line 7098) no Hoare annotation was computed. [2023-11-28 20:32:21,424 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-28 20:32:21,424 INFO L899 garLoopResultBuilder]: For program point L7132-2(line 7132) no Hoare annotation was computed. [2023-11-28 20:32:21,424 INFO L899 garLoopResultBuilder]: For program point L7132-1(line 7132) no Hoare annotation was computed. [2023-11-28 20:32:21,425 INFO L899 garLoopResultBuilder]: For program point L7132(line 7132) no Hoare annotation was computed. [2023-11-28 20:32:21,425 INFO L899 garLoopResultBuilder]: For program point main_ldv_final#1(lines 7118 7174) no Hoare annotation was computed. [2023-11-28 20:32:21,425 INFO L899 garLoopResultBuilder]: For program point L7132-6(line 7132) no Hoare annotation was computed. [2023-11-28 20:32:21,425 INFO L899 garLoopResultBuilder]: For program point L7132-5(line 7132) no Hoare annotation was computed. [2023-11-28 20:32:21,425 INFO L899 garLoopResultBuilder]: For program point L7132-4(line 7132) no Hoare annotation was computed. [2023-11-28 20:32:21,425 INFO L899 garLoopResultBuilder]: For program point L7132-3(line 7132) no Hoare annotation was computed. [2023-11-28 20:32:21,425 INFO L899 garLoopResultBuilder]: For program point L7132-8(line 7132) no Hoare annotation was computed. [2023-11-28 20:32:21,425 INFO L895 garLoopResultBuilder]: At program point L7694(line 7694) the Hoare annotation is: (and (= ~ldv_state_variable_1~0 1) (= ~ref_cnt~0 0) (= ~ldv_state_variable_0~0 3)) [2023-11-28 20:32:21,425 INFO L899 garLoopResultBuilder]: For program point L7132-11(line 7132) no Hoare annotation was computed. [2023-11-28 20:32:21,425 INFO L895 garLoopResultBuilder]: At program point scsi_tgt_if_init_free_rx_ring#1(lines 7649 7671) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= ~ldv_retval_1~0 0) (= ~ldv_state_variable_1~0 1) (= ~ref_cnt~0 0)) [2023-11-28 20:32:21,425 INFO L899 garLoopResultBuilder]: For program point L7694-1(line 7694) no Hoare annotation was computed. [2023-11-28 20:32:21,425 INFO L899 garLoopResultBuilder]: For program point L7661(lines 7661 7664) no Hoare annotation was computed. [2023-11-28 20:32:21,425 INFO L895 garLoopResultBuilder]: At program point scsi_tgt_init_destroy_wq#1(lines 7075 7100) the Hoare annotation is: (let ((.cse0 (= ~ldv_state_variable_0~0 1)) (.cse1 (= ~ldv_retval_1~0 0)) (.cse2 (= ~ref_cnt~0 0))) (or (and .cse0 .cse1 (= ~ldv_state_variable_1~0 1) .cse2) (and .cse0 .cse1 (= ~ldv_state_variable_1~0 0) .cse2))) [2023-11-28 20:32:21,425 INFO L899 garLoopResultBuilder]: For program point L7711-1(line 7711) no Hoare annotation was computed. [2023-11-28 20:32:21,425 INFO L899 garLoopResultBuilder]: For program point L7166(line 7166) no Hoare annotation was computed. [2023-11-28 20:32:21,425 INFO L895 garLoopResultBuilder]: At program point L7711(line 7711) the Hoare annotation is: (and (= ~ldv_state_variable_1~0 2) (= ~ref_cnt~0 1) (= ~ldv_state_variable_0~0 3)) [2023-11-28 20:32:21,425 INFO L899 garLoopResultBuilder]: For program point L7728-1(line 7728) no Hoare annotation was computed. [2023-11-28 20:32:21,426 INFO L899 garLoopResultBuilder]: For program point L7728(line 7728) no Hoare annotation was computed. [2023-11-28 20:32:21,426 INFO L899 garLoopResultBuilder]: For program point L7084(lines 7084 7088) no Hoare annotation was computed. [2023-11-28 20:32:21,426 INFO L899 garLoopResultBuilder]: For program point L8191-1(lines 8178 8195) no Hoare annotation was computed. [2023-11-28 20:32:21,426 INFO L902 garLoopResultBuilder]: At program point L8191(line 8191) the Hoare annotation is: true [2023-11-28 20:32:21,426 INFO L899 garLoopResultBuilder]: For program point L7746(line 7746) no Hoare annotation was computed. [2023-11-28 20:32:21,426 INFO L899 garLoopResultBuilder]: For program point L7746-1(line 7746) no Hoare annotation was computed. [2023-11-28 20:32:21,426 INFO L899 garLoopResultBuilder]: For program point scsi_tgt_if_init_returnLabel#1(lines 7647 7672) no Hoare annotation was computed. [2023-11-28 20:32:21,426 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6765 6771) the Hoare annotation is: true [2023-11-28 20:32:21,426 INFO L899 garLoopResultBuilder]: For program point scsi_tgt_cmd_to_hostEXIT(lines 6765 6771) no Hoare annotation was computed. [2023-11-28 20:32:21,426 INFO L899 garLoopResultBuilder]: For program point spinlock_checkEXIT(lines 6342 6347) no Hoare annotation was computed. [2023-11-28 20:32:21,426 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6342 6347) the Hoare annotation is: true [2023-11-28 20:32:21,428 INFO L445 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] [2023-11-28 20:32:21,429 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 20:32:21,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:32:21 BoogieIcfgContainer [2023-11-28 20:32:21,442 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 20:32:21,442 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 20:32:21,442 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 20:32:21,443 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 20:32:21,443 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:31:41" (3/4) ... [2023-11-28 20:32:21,445 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-28 20:32:21,448 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_idx_inc [2023-11-28 20:32:21,448 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __raw_spin_lock_init [2023-11-28 20:32:21,448 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_exit [2023-11-28 20:32:21,448 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure uspace_ring_map [2023-11-28 20:32:21,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2023-11-28 20:32:21,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_destroy [2023-11-28 20:32:21,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_write [2023-11-28 20:32:21,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_init [2023-11-28 20:32:21,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2023-11-28 20:32:21,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_del [2023-11-28 20:32:21,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_free [2023-11-28 20:32:21,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_head_event [2023-11-28 20:32:21,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_poll [2023-11-28 20:32:21,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_unmap_user_pages [2023-11-28 20:32:21,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _raw_spin_lock_irqsave [2023-11-28 20:32:21,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_put [2023-11-28 20:32:21,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_64 [2023-11-28 20:32:21,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~int [2023-11-28 20:32:21,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2023-11-28 20:32:21,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_open [2023-11-28 20:32:21,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_lookup [2023-11-28 20:32:21,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_mmap [2023-11-28 20:32:21,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_release_buffers [2023-11-28 20:32:21,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_destroy [2023-11-28 20:32:21,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spin_unlock_irqrestore [2023-11-28 20:32:21,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2023-11-28 20:32:21,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure destroy_workqueue [2023-11-28 20:32:21,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _copy_from_user [2023-11-28 20:32:21,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_add [2023-11-28 20:32:21,451 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_to_host [2023-11-28 20:32:21,451 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spinlock_check [2023-11-28 20:32:21,477 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 202 nodes and edges [2023-11-28 20:32:21,479 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 78 nodes and edges [2023-11-28 20:32:21,481 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2023-11-28 20:32:21,484 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-28 20:32:21,486 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-28 20:32:21,489 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-28 20:32:21,663 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-28 20:32:21,663 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-28 20:32:21,663 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 20:32:21,664 INFO L158 Benchmark]: Toolchain (without parser) took 43110.39ms. Allocated memory was 182.5MB in the beginning and 872.4MB in the end (delta: 690.0MB). Free memory was 140.8MB in the beginning and 641.1MB in the end (delta: -500.2MB). Peak memory consumption was 190.7MB. Max. memory is 16.1GB. [2023-11-28 20:32:21,664 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:32:21,664 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1480.92ms. Allocated memory is still 182.5MB. Free memory was 140.8MB in the beginning and 104.2MB in the end (delta: 36.6MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. [2023-11-28 20:32:21,664 INFO L158 Benchmark]: Boogie Procedure Inliner took 123.92ms. Allocated memory is still 182.5MB. Free memory was 104.2MB in the beginning and 95.0MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-28 20:32:21,665 INFO L158 Benchmark]: Boogie Preprocessor took 213.13ms. Allocated memory is still 182.5MB. Free memory was 95.0MB in the beginning and 69.8MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-28 20:32:21,665 INFO L158 Benchmark]: RCFGBuilder took 1502.46ms. Allocated memory was 182.5MB in the beginning and 308.3MB in the end (delta: 125.8MB). Free memory was 69.8MB in the beginning and 212.1MB in the end (delta: -142.3MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-28 20:32:21,665 INFO L158 Benchmark]: TraceAbstraction took 39561.77ms. Allocated memory was 308.3MB in the beginning and 872.4MB in the end (delta: 564.1MB). Free memory was 211.1MB in the beginning and 666.2MB in the end (delta: -455.2MB). Peak memory consumption was 514.7MB. Max. memory is 16.1GB. [2023-11-28 20:32:21,666 INFO L158 Benchmark]: Witness Printer took 221.10ms. Allocated memory is still 872.4MB. Free memory was 666.2MB in the beginning and 641.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-28 20:32:21,667 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1480.92ms. Allocated memory is still 182.5MB. Free memory was 140.8MB in the beginning and 104.2MB in the end (delta: 36.6MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 123.92ms. Allocated memory is still 182.5MB. Free memory was 104.2MB in the beginning and 95.0MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 213.13ms. Allocated memory is still 182.5MB. Free memory was 95.0MB in the beginning and 69.8MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1502.46ms. Allocated memory was 182.5MB in the beginning and 308.3MB in the end (delta: 125.8MB). Free memory was 69.8MB in the beginning and 212.1MB in the end (delta: -142.3MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * TraceAbstraction took 39561.77ms. Allocated memory was 308.3MB in the beginning and 872.4MB in the end (delta: 564.1MB). Free memory was 211.1MB in the beginning and 666.2MB in the end (delta: -455.2MB). Peak memory consumption was 514.7MB. Max. memory is 16.1GB. * Witness Printer took 221.10ms. Allocated memory is still 872.4MB. Free memory was 666.2MB in the beginning and 641.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 7332]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7332] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7545]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7545]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7600]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7600]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7627]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7627]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7740]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7740]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7750]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7750]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 32 procedures, 358 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 39.5s, OverallIterations: 24, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 19.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12572 SdHoareTripleChecker+Valid, 15.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11360 mSDsluCounter, 27067 SdHoareTripleChecker+Invalid, 13.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18324 mSDsCounter, 5945 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13233 IncrementalHoareTripleChecker+Invalid, 19178 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5945 mSolverCounterUnsat, 8743 mSDtfsCounter, 13233 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1613 GetRequests, 1461 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3252occurred in iteration=19, InterpolantAutomatonStates: 153, 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, 24 MinimizatonAttempts, 12302 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 114 LocationsWithAnnotation, 10828 PreInvPairs, 11050 NumberOfFragments, 851 HoareAnnotationTreeSize, 10828 FomulaSimplifications, 390100 FormulaSimplificationTreeSizeReduction, 3.9s HoareSimplificationTime, 114 FomulaSimplificationsInter, 9529 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 2847 NumberOfCodeBlocks, 2847 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 3097 ConstructedInterpolants, 0 QuantifiedInterpolants, 5370 SizeOfPredicates, 2 NumberOfNonLiveVariables, 10233 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 39 InterpolantComputations, 20 PerfectInterpolantSequences, 1680/1768 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 - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 6932]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7649]: Loop Invariant Derived loop invariant: ((((ldv_state_variable_0 == 1) && (ldv_retval_1 == 0)) && (ldv_state_variable_1 == 1)) && (ref_cnt == 0)) - InvariantResult [Line: 7051]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6348]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6818]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7649]: Loop Invariant Derived loop 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]: Loop Invariant Derived loop invariant: ((((ldv_state_variable_0 == 1) && ((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: 7005]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6292]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6890]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6597]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7075]: Loop Invariant Derived loop 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! [2023-11-28 20:32:21,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25794c3-4f13-4fe8-a594-36659a0d47c1/bin/uautomizer-verify-BQ2R08f2Ya/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