./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 037f6e8e4bd200c248573cc05d02b8c7bc97a7f8cca3135a2970ec46958bec59 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 13:19:58,895 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 13:19:58,960 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-01 13:19:58,966 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 13:19:58,966 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 13:19:58,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 13:19:58,990 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 13:19:58,991 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 13:19:58,991 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 13:19:58,991 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 13:19:58,991 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 13:19:58,991 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 13:19:58,992 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 13:19:58,992 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 13:19:58,992 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 13:19:58,992 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 13:19:58,992 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 13:19:58,992 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 13:19:58,992 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 13:19:58,992 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 13:19:58,992 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 13:19:58,993 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 13:19:58,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 13:19:58,993 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 13:19:58,993 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 13:19:58,993 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 13:19:58,993 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:19:58,993 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:19:58,993 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:19:58,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:19:58,993 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 13:19:58,993 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:19:58,994 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:19:58,994 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:19:58,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:19:58,994 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 13:19:58,994 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 13:19:58,994 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 13:19:58,994 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 13:19:58,994 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 13:19:58,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 13:19:58,994 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 13:19:58,994 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 13:19:58,994 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 13:19:58,995 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 13:19:58,995 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 037f6e8e4bd200c248573cc05d02b8c7bc97a7f8cca3135a2970ec46958bec59 [2024-12-01 13:19:59,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 13:19:59,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 13:19:59,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 13:19:59,266 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 13:19:59,267 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 13:19:59,268 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2024-12-01 13:20:01,927 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/data/ec99aac50/a37cf423255342b0bd397ce9a5282eb9/FLAG53a9d1a50 [2024-12-01 13:20:02,351 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 13:20:02,352 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2024-12-01 13:20:02,378 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/data/ec99aac50/a37cf423255342b0bd397ce9a5282eb9/FLAG53a9d1a50 [2024-12-01 13:20:02,478 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/data/ec99aac50/a37cf423255342b0bd397ce9a5282eb9 [2024-12-01 13:20:02,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 13:20:02,482 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 13:20:02,483 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 13:20:02,483 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 13:20:02,487 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 13:20:02,488 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:20:02" (1/1) ... [2024-12-01 13:20:02,489 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31804437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:02, skipping insertion in model container [2024-12-01 13:20:02,489 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:20:02" (1/1) ... [2024-12-01 13:20:02,572 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 13:20:03,233 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i[190557,190570] [2024-12-01 13:20:03,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:20:03,709 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 13:20:03,873 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i[190557,190570] [2024-12-01 13:20:03,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:20:04,032 INFO L204 MainTranslator]: Completed translation [2024-12-01 13:20:04,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:04 WrapperNode [2024-12-01 13:20:04,032 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 13:20:04,034 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 13:20:04,034 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 13:20:04,034 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 13:20:04,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:04" (1/1) ... [2024-12-01 13:20:04,076 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:04" (1/1) ... [2024-12-01 13:20:04,170 INFO L138 Inliner]: procedures = 175, calls = 763, calls flagged for inlining = 71, calls inlined = 62, statements flattened = 1974 [2024-12-01 13:20:04,170 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 13:20:04,171 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 13:20:04,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 13:20:04,171 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 13:20:04,181 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:04" (1/1) ... [2024-12-01 13:20:04,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:04" (1/1) ... [2024-12-01 13:20:04,195 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:04" (1/1) ... [2024-12-01 13:20:04,492 INFO L175 MemorySlicer]: Split 365 memory accesses to 15 slices as follows [2, 4, 20, 10, 2, 3, 2, 3, 3, 3, 3, 3, 44, 2, 261]. 72 percent of accesses are in the largest equivalence class. The 61 initializations are split as follows [2, 0, 15, 0, 0, 3, 0, 3, 3, 3, 3, 3, 0, 0, 26]. The 159 writes are split as follows [0, 1, 2, 9, 1, 0, 1, 0, 0, 0, 0, 0, 44, 1, 100]. [2024-12-01 13:20:04,492 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:04" (1/1) ... [2024-12-01 13:20:04,493 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:04" (1/1) ... [2024-12-01 13:20:04,556 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:04" (1/1) ... [2024-12-01 13:20:04,560 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:04" (1/1) ... [2024-12-01 13:20:04,572 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:04" (1/1) ... [2024-12-01 13:20:04,595 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:04" (1/1) ... [2024-12-01 13:20:04,603 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:04" (1/1) ... [2024-12-01 13:20:04,622 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 13:20:04,623 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 13:20:04,623 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 13:20:04,623 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 13:20:04,624 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:04" (1/1) ... [2024-12-01 13:20:04,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:20:04,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:20:04,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 13:20:04,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 13:20:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_cleanup_scatter [2024-12-01 13:20:04,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_cleanup_scatter [2024-12-01 13:20:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-12-01 13:20:04,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-12-01 13:20:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_submit_ctrl_out [2024-12-01 13:20:04,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_submit_ctrl_out [2024-12-01 13:20:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-01 13:20:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-01 13:20:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-01 13:20:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-01 13:20:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-01 13:20:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-01 13:20:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-01 13:20:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-01 13:20:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-01 13:20:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-01 13:20:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-12-01 13:20:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-12-01 13:20:04,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-12-01 13:20:04,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-12-01 13:20:04,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-12-01 13:20:04,684 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2024-12-01 13:20:04,684 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2024-12-01 13:20:04,684 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2024-12-01 13:20:04,684 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2024-12-01 13:20:04,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-12-01 13:20:04,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-12-01 13:20:04,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-12-01 13:20:04,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-12-01 13:20:04,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-12-01 13:20:04,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-12-01 13:20:04,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-12-01 13:20:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-12-01 13:20:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-12-01 13:20:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-12-01 13:20:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-12-01 13:20:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2024-12-01 13:20:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2024-12-01 13:20:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2024-12-01 13:20:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2024-12-01 13:20:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-01 13:20:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-01 13:20:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-01 13:20:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-01 13:20:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-01 13:20:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-01 13:20:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-01 13:20:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-01 13:20:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-01 13:20:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-01 13:20:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-12-01 13:20:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-12-01 13:20:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-12-01 13:20:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-12-01 13:20:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-12-01 13:20:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-12-01 13:20:04,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-12-01 13:20:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-01 13:20:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-01 13:20:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-01 13:20:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-01 13:20:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-01 13:20:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-01 13:20:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-01 13:20:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-01 13:20:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-01 13:20:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-01 13:20:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-01 13:20:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-01 13:20:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-01 13:20:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-01 13:20:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-12-01 13:20:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2024-12-01 13:20:04,687 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2024-12-01 13:20:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_diag_write32 [2024-12-01 13:20:04,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_diag_write32 [2024-12-01 13:20:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_destroy [2024-12-01 13:20:04,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_destroy [2024-12-01 13:20:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2024-12-01 13:20:04,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2024-12-01 13:20:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-12-01 13:20:04,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-12-01 13:20:04,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-01 13:20:04,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-01 13:20:04,688 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_get_default_pipe [2024-12-01 13:20:04,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_get_default_pipe [2024-12-01 13:20:04,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2024-12-01 13:20:04,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2024-12-01 13:20:04,688 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-12-01 13:20:04,688 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-12-01 13:20:04,688 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_power_off [2024-12-01 13:20:04,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_power_off [2024-12-01 13:20:04,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-01 13:20:04,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-01 13:20:04,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-01 13:20:04,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-01 13:20:04,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-01 13:20:04,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-01 13:20:04,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-01 13:20:04,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-01 13:20:04,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-01 13:20:04,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-01 13:20:04,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-01 13:20:04,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-01 13:20:04,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-01 13:20:04,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-01 13:20:04,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-12-01 13:20:04,689 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_bmi_read [2024-12-01 13:20:04,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_bmi_read [2024-12-01 13:20:04,689 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2024-12-01 13:20:04,689 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2024-12-01 13:20:04,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-12-01 13:20:04,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-12-01 13:20:04,690 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_stop [2024-12-01 13:20:04,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_stop [2024-12-01 13:20:04,690 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_get_free_queue_number [2024-12-01 13:20:04,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_get_free_queue_number [2024-12-01 13:20:04,690 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_free_urb_to_pipe [2024-12-01 13:20:04,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_free_urb_to_pipe [2024-12-01 13:20:04,690 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_flush_all [2024-12-01 13:20:04,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_flush_all [2024-12-01 13:20:04,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-12-01 13:20:04,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-12-01 13:20:04,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-12-01 13:20:04,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-12-01 13:20:04,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-12-01 13:20:04,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-12-01 13:20:04,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-12-01 13:20:04,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-12-01 13:20:04,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-12-01 13:20:04,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-12-01 13:20:04,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-12-01 13:20:04,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2024-12-01 13:20:04,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2024-12-01 13:20:04,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#13 [2024-12-01 13:20:04,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#14 [2024-12-01 13:20:04,691 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-12-01 13:20:04,691 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-12-01 13:20:04,691 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-12-01 13:20:04,691 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-12-01 13:20:04,691 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-12-01 13:20:04,691 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-12-01 13:20:04,691 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-12-01 13:20:04,691 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-12-01 13:20:04,691 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-12-01 13:20:04,691 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-12-01 13:20:04,691 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-12-01 13:20:04,691 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2024-12-01 13:20:04,691 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2024-12-01 13:20:04,692 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#13 [2024-12-01 13:20:04,692 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#14 [2024-12-01 13:20:04,692 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-01 13:20:04,692 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-01 13:20:04,692 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_warn [2024-12-01 13:20:04,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_warn [2024-12-01 13:20:04,692 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_ctrl_msg_exchange [2024-12-01 13:20:04,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_ctrl_msg_exchange [2024-12-01 13:20:04,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-01 13:20:04,692 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_cleanup_recv_urb [2024-12-01 13:20:04,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_cleanup_recv_urb [2024-12-01 13:20:04,692 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-12-01 13:20:04,692 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-12-01 13:20:04,692 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_submit_ctrl_in [2024-12-01 13:20:04,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_submit_ctrl_in [2024-12-01 13:20:04,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 13:20:04,692 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_power_on [2024-12-01 13:20:04,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_power_on [2024-12-01 13:20:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_priv [2024-12-01 13:20:04,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_priv [2024-12-01 13:20:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-01 13:20:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-01 13:20:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-01 13:20:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-01 13:20:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-01 13:20:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-01 13:20:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-01 13:20:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-01 13:20:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-01 13:20:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-01 13:20:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-01 13:20:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-01 13:20:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-12-01 13:20:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-12-01 13:20:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-12-01 13:20:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-12-01 13:20:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-12-01 13:20:04,694 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-12-01 13:20:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_err [2024-12-01 13:20:04,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_err [2024-12-01 13:20:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-01 13:20:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-01 13:20:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-01 13:20:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-01 13:20:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-01 13:20:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-01 13:20:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-01 13:20:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-01 13:20:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-01 13:20:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-01 13:20:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-01 13:20:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-12-01 13:20:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-12-01 13:20:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-12-01 13:20:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-12-01 13:20:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2024-12-01 13:20:04,695 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2024-12-01 13:20:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2024-12-01 13:20:04,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2024-12-01 13:20:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_alloc_urb_from_pipe [2024-12-01 13:20:04,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_alloc_urb_from_pipe [2024-12-01 13:20:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_remove [2024-12-01 13:20:04,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_remove [2024-12-01 13:20:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2024-12-01 13:20:04,695 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2024-12-01 13:20:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-12-01 13:20:04,695 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-12-01 13:20:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2024-12-01 13:20:04,695 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2024-12-01 13:20:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-01 13:20:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-01 13:20:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-01 13:20:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-01 13:20:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-01 13:20:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-01 13:20:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-01 13:20:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-01 13:20:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-01 13:20:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-12-01 13:20:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-12-01 13:20:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-12-01 13:20:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-12-01 13:20:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-12-01 13:20:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-12-01 13:20:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-12-01 13:20:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_post_recv_transfers [2024-12-01 13:20:04,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_post_recv_transfers [2024-12-01 13:20:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-12-01 13:20:04,696 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-12-01 13:20:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-12-01 13:20:04,697 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-12-01 13:20:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_map_service_pipe [2024-12-01 13:20:04,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_map_service_pipe [2024-12-01 13:20:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-12-01 13:20:04,697 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-12-01 13:20:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_dbg [2024-12-01 13:20:04,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_dbg [2024-12-01 13:20:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2024-12-01 13:20:04,697 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2024-12-01 13:20:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2024-12-01 13:20:04,697 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2024-12-01 13:20:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-01 13:20:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-01 13:20:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-01 13:20:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-01 13:20:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-01 13:20:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-01 13:20:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-01 13:20:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-01 13:20:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-01 13:20:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-01 13:20:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-01 13:20:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-01 13:20:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-01 13:20:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-01 13:20:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-01 13:20:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_send [2024-12-01 13:20:04,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_send [2024-12-01 13:20:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2024-12-01 13:20:04,698 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2024-12-01 13:20:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2024-12-01 13:20:04,698 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2024-12-01 13:20:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-12-01 13:20:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-12-01 13:20:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-12-01 13:20:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-12-01 13:20:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-12-01 13:20:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-12-01 13:20:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-12-01 13:20:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-12-01 13:20:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-12-01 13:20:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-12-01 13:20:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-12-01 13:20:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2024-12-01 13:20:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2024-12-01 13:20:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2024-12-01 13:20:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2024-12-01 13:20:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-12-01 13:20:04,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-12-01 13:20:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 13:20:04,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 13:20:05,198 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 13:20:05,200 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 13:20:05,294 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-12-01 13:20:11,332 INFO L? ?]: Removed 906 outVars from TransFormulas that were not future-live. [2024-12-01 13:20:11,332 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 13:20:11,357 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 13:20:11,357 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-12-01 13:20:11,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:20:11 BoogieIcfgContainer [2024-12-01 13:20:11,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 13:20:11,360 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 13:20:11,360 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 13:20:11,365 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 13:20:11,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 01:20:02" (1/3) ... [2024-12-01 13:20:11,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac65fc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:20:11, skipping insertion in model container [2024-12-01 13:20:11,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:04" (2/3) ... [2024-12-01 13:20:11,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac65fc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:20:11, skipping insertion in model container [2024-12-01 13:20:11,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:20:11" (3/3) ... [2024-12-01 13:20:11,367 INFO L128 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2024-12-01 13:20:11,383 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 13:20:11,387 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i that has 68 procedures, 873 locations, 1 initial locations, 20 loop locations, and 1 error locations. [2024-12-01 13:20:11,462 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 13:20:11,475 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@799a7f25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 13:20:11,475 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-01 13:20:11,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 824 states, 583 states have (on average 1.346483704974271) internal successors, (785), 598 states have internal predecessors, (785), 185 states have call successors, (185), 55 states have call predecessors, (185), 54 states have return successors, (181), 180 states have call predecessors, (181), 181 states have call successors, (181) [2024-12-01 13:20:11,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-01 13:20:11,495 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:11,495 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:11,496 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:11,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:11,501 INFO L85 PathProgramCache]: Analyzing trace with hash 22738526, now seen corresponding path program 1 times [2024-12-01 13:20:11,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:11,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77859715] [2024-12-01 13:20:11,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:11,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:12,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:12,628 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-01 13:20:12,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:12,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77859715] [2024-12-01 13:20:12,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77859715] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:12,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:12,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:20:12,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670261465] [2024-12-01 13:20:12,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:12,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:20:12,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:12,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:20:12,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:12,657 INFO L87 Difference]: Start difference. First operand has 824 states, 583 states have (on average 1.346483704974271) internal successors, (785), 598 states have internal predecessors, (785), 185 states have call successors, (185), 55 states have call predecessors, (185), 54 states have return successors, (181), 180 states have call predecessors, (181), 181 states have call successors, (181) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-01 13:20:16,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:20:16,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:16,883 INFO L93 Difference]: Finished difference Result 2401 states and 3459 transitions. [2024-12-01 13:20:16,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:20:16,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 96 [2024-12-01 13:20:16,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:16,906 INFO L225 Difference]: With dead ends: 2401 [2024-12-01 13:20:16,906 INFO L226 Difference]: Without dead ends: 1566 [2024-12-01 13:20:16,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:16,941 INFO L435 NwaCegarLoop]: 1142 mSDtfsCounter, 1057 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:16,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1057 Valid, 2252 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-01 13:20:16,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2024-12-01 13:20:17,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1566. [2024-12-01 13:20:17,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1116 states have (on average 1.3198924731182795) internal successors, (1473), 1134 states have internal predecessors, (1473), 345 states have call successors, (345), 105 states have call predecessors, (345), 104 states have return successors, (344), 342 states have call predecessors, (344), 344 states have call successors, (344) [2024-12-01 13:20:17,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 2162 transitions. [2024-12-01 13:20:17,083 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 2162 transitions. Word has length 96 [2024-12-01 13:20:17,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:17,084 INFO L471 AbstractCegarLoop]: Abstraction has 1566 states and 2162 transitions. [2024-12-01 13:20:17,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-01 13:20:17,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 2162 transitions. [2024-12-01 13:20:17,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-01 13:20:17,091 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:17,091 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:17,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-01 13:20:17,091 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:17,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:17,092 INFO L85 PathProgramCache]: Analyzing trace with hash 192713898, now seen corresponding path program 1 times [2024-12-01 13:20:17,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:17,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012599881] [2024-12-01 13:20:17,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:17,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:17,828 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-01 13:20:17,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:17,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012599881] [2024-12-01 13:20:17,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012599881] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:17,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:17,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 13:20:17,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169118747] [2024-12-01 13:20:17,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:17,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 13:20:17,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:17,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 13:20:17,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 13:20:17,832 INFO L87 Difference]: Start difference. First operand 1566 states and 2162 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-01 13:20:18,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:18,007 INFO L93 Difference]: Finished difference Result 3102 states and 4281 transitions. [2024-12-01 13:20:18,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 13:20:18,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 107 [2024-12-01 13:20:18,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:18,019 INFO L225 Difference]: With dead ends: 3102 [2024-12-01 13:20:18,020 INFO L226 Difference]: Without dead ends: 1574 [2024-12-01 13:20:18,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:20:18,026 INFO L435 NwaCegarLoop]: 1124 mSDtfsCounter, 1116 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 2250 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:18,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 2250 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 13:20:18,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2024-12-01 13:20:18,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1568. [2024-12-01 13:20:18,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1118 states have (on average 1.3184257602862255) internal successors, (1474), 1136 states have internal predecessors, (1474), 345 states have call successors, (345), 105 states have call predecessors, (345), 104 states have return successors, (344), 342 states have call predecessors, (344), 344 states have call successors, (344) [2024-12-01 13:20:18,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2163 transitions. [2024-12-01 13:20:18,115 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2163 transitions. Word has length 107 [2024-12-01 13:20:18,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:18,115 INFO L471 AbstractCegarLoop]: Abstraction has 1568 states and 2163 transitions. [2024-12-01 13:20:18,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-01 13:20:18,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2163 transitions. [2024-12-01 13:20:18,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-01 13:20:18,120 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:18,120 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:18,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-01 13:20:18,120 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:18,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:18,121 INFO L85 PathProgramCache]: Analyzing trace with hash 940214415, now seen corresponding path program 1 times [2024-12-01 13:20:18,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:18,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722763892] [2024-12-01 13:20:18,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:18,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:19,005 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-01 13:20:19,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:19,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722763892] [2024-12-01 13:20:19,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722763892] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:19,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:19,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:20:19,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836095029] [2024-12-01 13:20:19,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:19,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:20:19,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:19,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:20:19,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:20:19,008 INFO L87 Difference]: Start difference. First operand 1568 states and 2163 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-01 13:20:19,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:19,254 INFO L93 Difference]: Finished difference Result 4625 states and 6419 transitions. [2024-12-01 13:20:19,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:20:19,254 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 112 [2024-12-01 13:20:19,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:19,269 INFO L225 Difference]: With dead ends: 4625 [2024-12-01 13:20:19,269 INFO L226 Difference]: Without dead ends: 3089 [2024-12-01 13:20:19,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-01 13:20:19,274 INFO L435 NwaCegarLoop]: 1165 mSDtfsCounter, 1089 mSDsluCounter, 3390 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 4555 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:19,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 4555 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 13:20:19,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3089 states. [2024-12-01 13:20:19,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3089 to 3083. [2024-12-01 13:20:19,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3083 states, 2200 states have (on average 1.32) internal successors, (2904), 2236 states have internal predecessors, (2904), 676 states have call successors, (676), 207 states have call predecessors, (676), 206 states have return successors, (695), 671 states have call predecessors, (695), 675 states have call successors, (695) [2024-12-01 13:20:19,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3083 states to 3083 states and 4275 transitions. [2024-12-01 13:20:19,376 INFO L78 Accepts]: Start accepts. Automaton has 3083 states and 4275 transitions. Word has length 112 [2024-12-01 13:20:19,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:19,377 INFO L471 AbstractCegarLoop]: Abstraction has 3083 states and 4275 transitions. [2024-12-01 13:20:19,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-01 13:20:19,377 INFO L276 IsEmpty]: Start isEmpty. Operand 3083 states and 4275 transitions. [2024-12-01 13:20:19,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-12-01 13:20:19,386 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:19,386 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:19,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-01 13:20:19,386 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:19,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:19,387 INFO L85 PathProgramCache]: Analyzing trace with hash -456152475, now seen corresponding path program 1 times [2024-12-01 13:20:19,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:19,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164861546] [2024-12-01 13:20:19,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:19,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:19,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:19,907 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-12-01 13:20:19,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:19,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164861546] [2024-12-01 13:20:19,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164861546] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:19,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:19,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:20:19,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493661610] [2024-12-01 13:20:19,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:19,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:20:19,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:19,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:20:19,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:19,910 INFO L87 Difference]: Start difference. First operand 3083 states and 4275 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-01 13:20:20,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:20,169 INFO L93 Difference]: Finished difference Result 8067 states and 11134 transitions. [2024-12-01 13:20:20,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:20:20,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 242 [2024-12-01 13:20:20,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:20,201 INFO L225 Difference]: With dead ends: 8067 [2024-12-01 13:20:20,201 INFO L226 Difference]: Without dead ends: 5022 [2024-12-01 13:20:20,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:20,213 INFO L435 NwaCegarLoop]: 1137 mSDtfsCounter, 710 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:20,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [710 Valid, 2183 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 13:20:20,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5022 states. [2024-12-01 13:20:20,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5022 to 5011. [2024-12-01 13:20:20,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5011 states, 3560 states have (on average 1.3227528089887641) internal successors, (4709), 3612 states have internal predecessors, (4709), 1076 states have call successors, (1076), 375 states have call predecessors, (1076), 374 states have return successors, (1111), 1071 states have call predecessors, (1111), 1075 states have call successors, (1111) [2024-12-01 13:20:20,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5011 states to 5011 states and 6896 transitions. [2024-12-01 13:20:20,474 INFO L78 Accepts]: Start accepts. Automaton has 5011 states and 6896 transitions. Word has length 242 [2024-12-01 13:20:20,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:20,475 INFO L471 AbstractCegarLoop]: Abstraction has 5011 states and 6896 transitions. [2024-12-01 13:20:20,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-01 13:20:20,475 INFO L276 IsEmpty]: Start isEmpty. Operand 5011 states and 6896 transitions. [2024-12-01 13:20:20,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-12-01 13:20:20,493 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:20,494 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:20,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-01 13:20:20,494 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:20,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:20,494 INFO L85 PathProgramCache]: Analyzing trace with hash 2069648018, now seen corresponding path program 1 times [2024-12-01 13:20:20,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:20,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62260628] [2024-12-01 13:20:20,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:20,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:20,966 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2024-12-01 13:20:20,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:20,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62260628] [2024-12-01 13:20:20,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62260628] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:20,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:20,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:20:20,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348176565] [2024-12-01 13:20:20,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:20,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:20:20,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:20,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:20:20,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:20,968 INFO L87 Difference]: Start difference. First operand 5011 states and 6896 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-01 13:20:21,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:21,437 INFO L93 Difference]: Finished difference Result 11870 states and 16253 transitions. [2024-12-01 13:20:21,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:20:21,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 224 [2024-12-01 13:20:21,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:21,469 INFO L225 Difference]: With dead ends: 11870 [2024-12-01 13:20:21,469 INFO L226 Difference]: Without dead ends: 6897 [2024-12-01 13:20:21,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:21,484 INFO L435 NwaCegarLoop]: 1315 mSDtfsCounter, 661 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 2280 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:21,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 2280 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 13:20:21,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6897 states. [2024-12-01 13:20:21,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6897 to 6884. [2024-12-01 13:20:21,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6884 states, 4926 states have (on average 1.3112058465286236) internal successors, (6459), 5010 states have internal predecessors, (6459), 1441 states have call successors, (1441), 517 states have call predecessors, (1441), 516 states have return successors, (1488), 1432 states have call predecessors, (1488), 1440 states have call successors, (1488) [2024-12-01 13:20:21,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6884 states to 6884 states and 9388 transitions. [2024-12-01 13:20:21,782 INFO L78 Accepts]: Start accepts. Automaton has 6884 states and 9388 transitions. Word has length 224 [2024-12-01 13:20:21,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:21,782 INFO L471 AbstractCegarLoop]: Abstraction has 6884 states and 9388 transitions. [2024-12-01 13:20:21,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-01 13:20:21,782 INFO L276 IsEmpty]: Start isEmpty. Operand 6884 states and 9388 transitions. [2024-12-01 13:20:21,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-12-01 13:20:21,796 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:21,796 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:21,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-01 13:20:21,796 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:21,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:21,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1250051130, now seen corresponding path program 1 times [2024-12-01 13:20:21,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:21,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294148765] [2024-12-01 13:20:21,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:21,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:22,307 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2024-12-01 13:20:22,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:22,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294148765] [2024-12-01 13:20:22,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294148765] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:22,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:22,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:20:22,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058733691] [2024-12-01 13:20:22,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:22,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:20:22,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:22,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:20:22,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:22,309 INFO L87 Difference]: Start difference. First operand 6884 states and 9388 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-01 13:20:26,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:20:26,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:26,659 INFO L93 Difference]: Finished difference Result 16362 states and 22248 transitions. [2024-12-01 13:20:26,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:20:26,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 254 [2024-12-01 13:20:26,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:26,715 INFO L225 Difference]: With dead ends: 16362 [2024-12-01 13:20:26,715 INFO L226 Difference]: Without dead ends: 9527 [2024-12-01 13:20:26,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:26,739 INFO L435 NwaCegarLoop]: 1150 mSDtfsCounter, 976 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 1976 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:26,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 1976 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-01 13:20:26,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9527 states. [2024-12-01 13:20:27,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9527 to 9512. [2024-12-01 13:20:27,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9512 states, 6810 states have (on average 1.3073421439060207) internal successors, (8903), 6918 states have internal predecessors, (8903), 1943 states have call successors, (1943), 759 states have call predecessors, (1943), 758 states have return successors, (2006), 1934 states have call predecessors, (2006), 1942 states have call successors, (2006) [2024-12-01 13:20:27,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9512 states to 9512 states and 12852 transitions. [2024-12-01 13:20:27,214 INFO L78 Accepts]: Start accepts. Automaton has 9512 states and 12852 transitions. Word has length 254 [2024-12-01 13:20:27,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:27,214 INFO L471 AbstractCegarLoop]: Abstraction has 9512 states and 12852 transitions. [2024-12-01 13:20:27,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-01 13:20:27,216 INFO L276 IsEmpty]: Start isEmpty. Operand 9512 states and 12852 transitions. [2024-12-01 13:20:27,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-12-01 13:20:27,235 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:27,236 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:27,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-01 13:20:27,236 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:27,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:27,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1823266341, now seen corresponding path program 1 times [2024-12-01 13:20:27,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:27,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84811010] [2024-12-01 13:20:27,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:27,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:27,676 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2024-12-01 13:20:27,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:27,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84811010] [2024-12-01 13:20:27,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84811010] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:27,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:27,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:20:27,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964317188] [2024-12-01 13:20:27,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:27,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:20:27,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:27,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:20:27,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:27,678 INFO L87 Difference]: Start difference. First operand 9512 states and 12852 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-01 13:20:31,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:20:32,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:32,513 INFO L93 Difference]: Finished difference Result 25056 states and 33856 transitions. [2024-12-01 13:20:32,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:20:32,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 234 [2024-12-01 13:20:32,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:32,590 INFO L225 Difference]: With dead ends: 25056 [2024-12-01 13:20:32,590 INFO L226 Difference]: Without dead ends: 15593 [2024-12-01 13:20:32,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:32,622 INFO L435 NwaCegarLoop]: 1653 mSDtfsCounter, 913 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 2645 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:32,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 2645 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 119 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-12-01 13:20:32,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15593 states. [2024-12-01 13:20:33,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15593 to 15580. [2024-12-01 13:20:33,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15580 states, 11270 states have (on average 1.288642413487134) internal successors, (14523), 11450 states have internal predecessors, (14523), 3007 states have call successors, (3007), 1303 states have call predecessors, (3007), 1302 states have return successors, (3104), 2994 states have call predecessors, (3104), 3006 states have call successors, (3104) [2024-12-01 13:20:33,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15580 states to 15580 states and 20634 transitions. [2024-12-01 13:20:33,389 INFO L78 Accepts]: Start accepts. Automaton has 15580 states and 20634 transitions. Word has length 234 [2024-12-01 13:20:33,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:33,390 INFO L471 AbstractCegarLoop]: Abstraction has 15580 states and 20634 transitions. [2024-12-01 13:20:33,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-01 13:20:33,390 INFO L276 IsEmpty]: Start isEmpty. Operand 15580 states and 20634 transitions. [2024-12-01 13:20:33,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-12-01 13:20:33,412 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:33,412 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:33,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-01 13:20:33,412 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:33,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:33,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1017663472, now seen corresponding path program 1 times [2024-12-01 13:20:33,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:33,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633268233] [2024-12-01 13:20:33,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:33,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:33,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:34,465 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-12-01 13:20:34,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:34,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633268233] [2024-12-01 13:20:34,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633268233] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:34,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:34,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:20:34,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217289941] [2024-12-01 13:20:34,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:34,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:20:34,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:34,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:20:34,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:20:34,468 INFO L87 Difference]: Start difference. First operand 15580 states and 20634 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-01 13:20:34,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:34,831 INFO L93 Difference]: Finished difference Result 31229 states and 41536 transitions. [2024-12-01 13:20:34,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:20:34,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 235 [2024-12-01 13:20:34,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:34,883 INFO L225 Difference]: With dead ends: 31229 [2024-12-01 13:20:34,883 INFO L226 Difference]: Without dead ends: 15698 [2024-12-01 13:20:34,914 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:20:34,914 INFO L435 NwaCegarLoop]: 1119 mSDtfsCounter, 0 mSDsluCounter, 3352 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4471 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:34,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4471 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:20:34,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15698 states. [2024-12-01 13:20:35,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15698 to 15692. [2024-12-01 13:20:35,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15692 states, 11354 states have (on average 1.2865069579002995) internal successors, (14607), 11534 states have internal predecessors, (14607), 3007 states have call successors, (3007), 1303 states have call predecessors, (3007), 1330 states have return successors, (3138), 3022 states have call predecessors, (3138), 3006 states have call successors, (3138) [2024-12-01 13:20:35,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15692 states to 15692 states and 20752 transitions. [2024-12-01 13:20:35,330 INFO L78 Accepts]: Start accepts. Automaton has 15692 states and 20752 transitions. Word has length 235 [2024-12-01 13:20:35,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:35,331 INFO L471 AbstractCegarLoop]: Abstraction has 15692 states and 20752 transitions. [2024-12-01 13:20:35,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-01 13:20:35,331 INFO L276 IsEmpty]: Start isEmpty. Operand 15692 states and 20752 transitions. [2024-12-01 13:20:35,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-12-01 13:20:35,344 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:35,344 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:35,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-01 13:20:35,344 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:35,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:35,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1623762147, now seen corresponding path program 1 times [2024-12-01 13:20:35,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:35,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377949807] [2024-12-01 13:20:35,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:35,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:35,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:35,869 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2024-12-01 13:20:35,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:35,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377949807] [2024-12-01 13:20:35,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377949807] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:35,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:35,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:20:35,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954024883] [2024-12-01 13:20:35,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:35,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:20:35,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:35,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:20:35,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:35,871 INFO L87 Difference]: Start difference. First operand 15692 states and 20752 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-01 13:20:36,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:36,362 INFO L93 Difference]: Finished difference Result 23567 states and 31317 transitions. [2024-12-01 13:20:36,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:20:36,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 234 [2024-12-01 13:20:36,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:36,406 INFO L225 Difference]: With dead ends: 23567 [2024-12-01 13:20:36,406 INFO L226 Difference]: Without dead ends: 15720 [2024-12-01 13:20:36,418 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:36,419 INFO L435 NwaCegarLoop]: 1120 mSDtfsCounter, 3 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:36,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2233 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:20:36,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15720 states. [2024-12-01 13:20:36,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15720 to 15720. [2024-12-01 13:20:36,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15720 states, 11382 states have (on average 1.285802143735723) internal successors, (14635), 11562 states have internal predecessors, (14635), 3007 states have call successors, (3007), 1303 states have call predecessors, (3007), 1330 states have return successors, (3138), 3022 states have call predecessors, (3138), 3006 states have call successors, (3138) [2024-12-01 13:20:36,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15720 states to 15720 states and 20780 transitions. [2024-12-01 13:20:36,887 INFO L78 Accepts]: Start accepts. Automaton has 15720 states and 20780 transitions. Word has length 234 [2024-12-01 13:20:36,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:36,887 INFO L471 AbstractCegarLoop]: Abstraction has 15720 states and 20780 transitions. [2024-12-01 13:20:36,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-01 13:20:36,888 INFO L276 IsEmpty]: Start isEmpty. Operand 15720 states and 20780 transitions. [2024-12-01 13:20:36,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-12-01 13:20:36,903 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:36,903 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:36,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-01 13:20:36,903 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:36,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:36,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1222529124, now seen corresponding path program 1 times [2024-12-01 13:20:36,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:36,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441744172] [2024-12-01 13:20:36,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:36,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:38,110 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2024-12-01 13:20:38,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:38,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441744172] [2024-12-01 13:20:38,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441744172] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:38,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:38,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 13:20:38,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931233596] [2024-12-01 13:20:38,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:38,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-01 13:20:38,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:38,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-01 13:20:38,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-12-01 13:20:38,113 INFO L87 Difference]: Start difference. First operand 15720 states and 20780 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 5 states have call successors, (32), 4 states have call predecessors, (32), 3 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) [2024-12-01 13:20:42,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:20:46,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:20:53,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:53,101 INFO L93 Difference]: Finished difference Result 34337 states and 45578 transitions. [2024-12-01 13:20:53,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-01 13:20:53,101 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 5 states have call successors, (32), 4 states have call predecessors, (32), 3 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) Word has length 236 [2024-12-01 13:20:53,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:53,170 INFO L225 Difference]: With dead ends: 34337 [2024-12-01 13:20:53,170 INFO L226 Difference]: Without dead ends: 18666 [2024-12-01 13:20:53,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-12-01 13:20:53,207 INFO L435 NwaCegarLoop]: 677 mSDtfsCounter, 1730 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 3283 mSolverCounterSat, 594 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1928 SdHoareTripleChecker+Valid, 3238 SdHoareTripleChecker+Invalid, 3879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 594 IncrementalHoareTripleChecker+Valid, 3283 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:53,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1928 Valid, 3238 Invalid, 3879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [594 Valid, 3283 Invalid, 2 Unknown, 0 Unchecked, 14.1s Time] [2024-12-01 13:20:53,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18666 states. [2024-12-01 13:20:53,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18666 to 18326. [2024-12-01 13:20:53,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18326 states, 12982 states have (on average 1.269835156370359) internal successors, (16485), 13274 states have internal predecessors, (16485), 3651 states have call successors, (3651), 1569 states have call predecessors, (3651), 1692 states have return successors, (4006), 3692 states have call predecessors, (4006), 3650 states have call successors, (4006) [2024-12-01 13:20:53,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18326 states to 18326 states and 24142 transitions. [2024-12-01 13:20:53,981 INFO L78 Accepts]: Start accepts. Automaton has 18326 states and 24142 transitions. Word has length 236 [2024-12-01 13:20:53,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:53,982 INFO L471 AbstractCegarLoop]: Abstraction has 18326 states and 24142 transitions. [2024-12-01 13:20:53,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 5 states have call successors, (32), 4 states have call predecessors, (32), 3 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) [2024-12-01 13:20:53,982 INFO L276 IsEmpty]: Start isEmpty. Operand 18326 states and 24142 transitions. [2024-12-01 13:20:53,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-12-01 13:20:53,994 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:53,994 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:53,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-01 13:20:53,995 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:53,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:53,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1365306766, now seen corresponding path program 1 times [2024-12-01 13:20:53,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:53,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112332360] [2024-12-01 13:20:53,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:53,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:54,573 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2024-12-01 13:20:54,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:54,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112332360] [2024-12-01 13:20:54,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112332360] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:54,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:54,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:20:54,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648558643] [2024-12-01 13:20:54,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:54,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:20:54,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:54,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:20:54,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:54,576 INFO L87 Difference]: Start difference. First operand 18326 states and 24142 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) [2024-12-01 13:20:55,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:55,066 INFO L93 Difference]: Finished difference Result 36675 states and 48402 transitions. [2024-12-01 13:20:55,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:20:55,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) Word has length 242 [2024-12-01 13:20:55,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:55,134 INFO L225 Difference]: With dead ends: 36675 [2024-12-01 13:20:55,134 INFO L226 Difference]: Without dead ends: 18398 [2024-12-01 13:20:55,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:55,175 INFO L435 NwaCegarLoop]: 1119 mSDtfsCounter, 1 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2234 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:55,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2234 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:20:55,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18398 states. [2024-12-01 13:20:55,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18398 to 18362. [2024-12-01 13:20:55,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18362 states, 13018 states have (on average 1.2690889537563375) internal successors, (16521), 13310 states have internal predecessors, (16521), 3651 states have call successors, (3651), 1569 states have call predecessors, (3651), 1692 states have return successors, (4006), 3692 states have call predecessors, (4006), 3650 states have call successors, (4006) [2024-12-01 13:20:55,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18362 states to 18362 states and 24178 transitions. [2024-12-01 13:20:55,861 INFO L78 Accepts]: Start accepts. Automaton has 18362 states and 24178 transitions. Word has length 242 [2024-12-01 13:20:55,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:55,861 INFO L471 AbstractCegarLoop]: Abstraction has 18362 states and 24178 transitions. [2024-12-01 13:20:55,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) [2024-12-01 13:20:55,862 INFO L276 IsEmpty]: Start isEmpty. Operand 18362 states and 24178 transitions. [2024-12-01 13:20:55,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-12-01 13:20:55,872 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:55,873 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:55,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-01 13:20:55,873 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:55,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:55,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1367216658, now seen corresponding path program 1 times [2024-12-01 13:20:55,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:55,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617201290] [2024-12-01 13:20:55,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:55,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:56,760 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2024-12-01 13:20:56,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:56,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617201290] [2024-12-01 13:20:56,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617201290] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:20:56,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70623593] [2024-12-01 13:20:56,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:56,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:20:56,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:20:56,763 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:20:56,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-01 13:20:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:58,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 2370 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-01 13:20:58,276 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:58,840 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 106 proven. 8 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-12-01 13:20:58,841 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:21:00,891 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-01 13:21:00,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70623593] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:21:00,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-01 13:21:00,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 9] total 17 [2024-12-01 13:21:00,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695184376] [2024-12-01 13:21:00,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:21:00,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-01 13:21:00,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:21:00,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-01 13:21:00,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-12-01 13:21:00,894 INFO L87 Difference]: Start difference. First operand 18362 states and 24178 transitions. Second operand has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 7 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (32), 7 states have call predecessors, (32), 6 states have call successors, (32) [2024-12-01 13:21:04,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:21:08,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:21:12,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:21:22,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:21:22,812 INFO L93 Difference]: Finished difference Result 46908 states and 64608 transitions. [2024-12-01 13:21:22,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-01 13:21:22,813 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 7 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (32), 7 states have call predecessors, (32), 6 states have call successors, (32) Word has length 244 [2024-12-01 13:21:22,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:21:22,946 INFO L225 Difference]: With dead ends: 46908 [2024-12-01 13:21:22,946 INFO L226 Difference]: Without dead ends: 36375 [2024-12-01 13:21:22,991 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 476 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2024-12-01 13:21:22,992 INFO L435 NwaCegarLoop]: 1577 mSDtfsCounter, 4990 mSDsluCounter, 2827 mSDsCounter, 0 mSdLazyCounter, 3496 mSolverCounterSat, 1833 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5191 SdHoareTripleChecker+Valid, 4404 SdHoareTripleChecker+Invalid, 5332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1833 IncrementalHoareTripleChecker+Valid, 3496 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:21:22,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5191 Valid, 4404 Invalid, 5332 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1833 Valid, 3496 Invalid, 3 Unknown, 0 Unchecked, 20.0s Time] [2024-12-01 13:21:23,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36375 states. [2024-12-01 13:21:24,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36375 to 27696. [2024-12-01 13:21:24,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27696 states, 19627 states have (on average 1.268303867121822) internal successors, (24893), 20135 states have internal predecessors, (24893), 5441 states have call successors, (5441), 2274 states have call predecessors, (5441), 2627 states have return successors, (6457), 5622 states have call predecessors, (6457), 5440 states have call successors, (6457) [2024-12-01 13:21:24,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27696 states to 27696 states and 36791 transitions. [2024-12-01 13:21:24,250 INFO L78 Accepts]: Start accepts. Automaton has 27696 states and 36791 transitions. Word has length 244 [2024-12-01 13:21:24,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:21:24,251 INFO L471 AbstractCegarLoop]: Abstraction has 27696 states and 36791 transitions. [2024-12-01 13:21:24,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 7 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (32), 7 states have call predecessors, (32), 6 states have call successors, (32) [2024-12-01 13:21:24,251 INFO L276 IsEmpty]: Start isEmpty. Operand 27696 states and 36791 transitions. [2024-12-01 13:21:24,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-12-01 13:21:24,260 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:21:24,260 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:21:24,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-01 13:21:24,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-01 13:21:24,461 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:21:24,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:21:24,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1336679953, now seen corresponding path program 1 times [2024-12-01 13:21:24,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:21:24,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388816260] [2024-12-01 13:21:24,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:24,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:21:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:24,890 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-01 13:21:24,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:21:24,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388816260] [2024-12-01 13:21:24,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388816260] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:21:24,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:21:24,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 13:21:24,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665246433] [2024-12-01 13:21:24,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:21:24,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 13:21:24,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:21:24,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 13:21:24,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 13:21:24,892 INFO L87 Difference]: Start difference. First operand 27696 states and 36791 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-12-01 13:21:25,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:21:25,763 INFO L93 Difference]: Finished difference Result 47647 states and 63831 transitions. [2024-12-01 13:21:25,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 13:21:25,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 246 [2024-12-01 13:21:25,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:21:25,836 INFO L225 Difference]: With dead ends: 47647 [2024-12-01 13:21:25,836 INFO L226 Difference]: Without dead ends: 27780 [2024-12-01 13:21:25,872 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 13:21:25,873 INFO L435 NwaCegarLoop]: 1115 mSDtfsCounter, 0 mSDsluCounter, 2224 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3339 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:21:25,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3339 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:21:25,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27780 states. [2024-12-01 13:21:26,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27780 to 27766. [2024-12-01 13:21:26,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27766 states, 19697 states have (on average 1.2687718941970858) internal successors, (24991), 20205 states have internal predecessors, (24991), 5441 states have call successors, (5441), 2274 states have call predecessors, (5441), 2627 states have return successors, (6457), 5622 states have call predecessors, (6457), 5440 states have call successors, (6457) [2024-12-01 13:21:26,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27766 states to 27766 states and 36889 transitions. [2024-12-01 13:21:27,019 INFO L78 Accepts]: Start accepts. Automaton has 27766 states and 36889 transitions. Word has length 246 [2024-12-01 13:21:27,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:21:27,019 INFO L471 AbstractCegarLoop]: Abstraction has 27766 states and 36889 transitions. [2024-12-01 13:21:27,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-12-01 13:21:27,019 INFO L276 IsEmpty]: Start isEmpty. Operand 27766 states and 36889 transitions. [2024-12-01 13:21:27,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-12-01 13:21:27,031 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:21:27,031 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:21:27,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-01 13:21:27,031 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:21:27,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:21:27,031 INFO L85 PathProgramCache]: Analyzing trace with hash 868115490, now seen corresponding path program 1 times [2024-12-01 13:21:27,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:21:27,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983871174] [2024-12-01 13:21:27,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:27,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:21:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:27,486 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-01 13:21:27,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:21:27,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983871174] [2024-12-01 13:21:27,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983871174] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:21:27,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785605508] [2024-12-01 13:21:27,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:27,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:21:27,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:21:27,488 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:21:27,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-01 13:21:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:28,554 INFO L256 TraceCheckSpWp]: Trace formula consists of 2378 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-01 13:21:28,560 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:21:28,594 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-01 13:21:28,595 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:21:29,090 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-01 13:21:29,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785605508] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 13:21:29,090 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 13:21:29,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-12-01 13:21:29,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707458999] [2024-12-01 13:21:29,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 13:21:29,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-01 13:21:29,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:21:29,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-01 13:21:29,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-01 13:21:29,092 INFO L87 Difference]: Start difference. First operand 27766 states and 36889 transitions. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) [2024-12-01 13:21:30,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:21:30,462 INFO L93 Difference]: Finished difference Result 56059 states and 74832 transitions. [2024-12-01 13:21:30,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:21:30,463 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) Word has length 247 [2024-12-01 13:21:30,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:21:30,574 INFO L225 Difference]: With dead ends: 56059 [2024-12-01 13:21:30,574 INFO L226 Difference]: Without dead ends: 28342 [2024-12-01 13:21:30,644 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-01 13:21:30,644 INFO L435 NwaCegarLoop]: 1119 mSDtfsCounter, 2 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2234 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:21:30,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2234 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:21:30,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28342 states. [2024-12-01 13:21:32,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28342 to 28342. [2024-12-01 13:21:32,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28342 states, 20273 states have (on average 1.2611355004192768) internal successors, (25567), 20781 states have internal predecessors, (25567), 5441 states have call successors, (5441), 2274 states have call predecessors, (5441), 2627 states have return successors, (6457), 5622 states have call predecessors, (6457), 5440 states have call successors, (6457) [2024-12-01 13:21:32,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28342 states to 28342 states and 37465 transitions. [2024-12-01 13:21:32,243 INFO L78 Accepts]: Start accepts. Automaton has 28342 states and 37465 transitions. Word has length 247 [2024-12-01 13:21:32,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:21:32,244 INFO L471 AbstractCegarLoop]: Abstraction has 28342 states and 37465 transitions. [2024-12-01 13:21:32,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) [2024-12-01 13:21:32,244 INFO L276 IsEmpty]: Start isEmpty. Operand 28342 states and 37465 transitions. [2024-12-01 13:21:32,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-12-01 13:21:32,255 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:21:32,255 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:21:32,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-01 13:21:32,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-01 13:21:32,455 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:21:32,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:21:32,456 INFO L85 PathProgramCache]: Analyzing trace with hash 135962542, now seen corresponding path program 2 times [2024-12-01 13:21:32,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:21:32,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000018608] [2024-12-01 13:21:32,456 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-01 13:21:32,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:21:32,864 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-01 13:21:32,864 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:21:34,777 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-12-01 13:21:34,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:21:34,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000018608] [2024-12-01 13:21:34,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000018608] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:21:34,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:21:34,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-01 13:21:34,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873507410] [2024-12-01 13:21:34,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:21:34,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-01 13:21:34,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:21:34,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-01 13:21:34,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-12-01 13:21:34,779 INFO L87 Difference]: Start difference. First operand 28342 states and 37465 transitions. Second operand has 14 states, 13 states have (on average 10.461538461538462) internal successors, (136), 11 states have internal predecessors, (136), 3 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (32), 5 states have call predecessors, (32), 3 states have call successors, (32) [2024-12-01 13:21:36,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:21:36,527 INFO L93 Difference]: Finished difference Result 57049 states and 76118 transitions. [2024-12-01 13:21:36,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-01 13:21:36,528 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.461538461538462) internal successors, (136), 11 states have internal predecessors, (136), 3 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (32), 5 states have call predecessors, (32), 3 states have call successors, (32) Word has length 253 [2024-12-01 13:21:36,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:21:36,636 INFO L225 Difference]: With dead ends: 57049 [2024-12-01 13:21:36,636 INFO L226 Difference]: Without dead ends: 28756 [2024-12-01 13:21:36,705 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-12-01 13:21:36,706 INFO L435 NwaCegarLoop]: 1131 mSDtfsCounter, 5 mSDsluCounter, 12406 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 13537 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:21:36,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 13537 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 13:21:36,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28756 states. [2024-12-01 13:21:37,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28756 to 28748. [2024-12-01 13:21:37,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28748 states, 20623 states have (on average 1.2539882655287786) internal successors, (25861), 21089 states have internal predecessors, (25861), 5441 states have call successors, (5441), 2274 states have call predecessors, (5441), 2683 states have return successors, (6555), 5720 states have call predecessors, (6555), 5440 states have call successors, (6555) [2024-12-01 13:21:37,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28748 states to 28748 states and 37857 transitions. [2024-12-01 13:21:37,852 INFO L78 Accepts]: Start accepts. Automaton has 28748 states and 37857 transitions. Word has length 253 [2024-12-01 13:21:37,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:21:37,852 INFO L471 AbstractCegarLoop]: Abstraction has 28748 states and 37857 transitions. [2024-12-01 13:21:37,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.461538461538462) internal successors, (136), 11 states have internal predecessors, (136), 3 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (32), 5 states have call predecessors, (32), 3 states have call successors, (32) [2024-12-01 13:21:37,852 INFO L276 IsEmpty]: Start isEmpty. Operand 28748 states and 37857 transitions. [2024-12-01 13:21:37,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-12-01 13:21:37,866 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:21:37,866 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:21:37,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-01 13:21:37,866 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:21:37,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:21:37,867 INFO L85 PathProgramCache]: Analyzing trace with hash -486119362, now seen corresponding path program 1 times [2024-12-01 13:21:37,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:21:37,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751754558] [2024-12-01 13:21:37,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:37,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:21:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:38,681 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2024-12-01 13:21:38,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:21:38,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751754558] [2024-12-01 13:21:38,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751754558] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:21:38,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:21:38,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 13:21:38,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066970559] [2024-12-01 13:21:38,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:21:38,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 13:21:38,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:21:38,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 13:21:38,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:21:38,683 INFO L87 Difference]: Start difference. First operand 28748 states and 37857 transitions. Second operand has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 5 states have internal predecessors, (143), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2024-12-01 13:21:39,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:21:39,770 INFO L93 Difference]: Finished difference Result 57953 states and 77014 transitions. [2024-12-01 13:21:39,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:21:39,770 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 5 states have internal predecessors, (143), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 265 [2024-12-01 13:21:39,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:21:39,883 INFO L225 Difference]: With dead ends: 57953 [2024-12-01 13:21:39,884 INFO L226 Difference]: Without dead ends: 29254 [2024-12-01 13:21:39,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:21:39,951 INFO L435 NwaCegarLoop]: 1124 mSDtfsCounter, 0 mSDsluCounter, 4475 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5599 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:21:39,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5599 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:21:39,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29254 states. [2024-12-01 13:21:40,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29254 to 29168. [2024-12-01 13:21:40,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29168 states, 20931 states have (on average 1.2502508241364483) internal successors, (26169), 21383 states have internal predecessors, (26169), 5497 states have call successors, (5497), 2274 states have call predecessors, (5497), 2739 states have return successors, (6775), 5846 states have call predecessors, (6775), 5496 states have call successors, (6775) [2024-12-01 13:21:40,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29168 states to 29168 states and 38441 transitions. [2024-12-01 13:21:41,013 INFO L78 Accepts]: Start accepts. Automaton has 29168 states and 38441 transitions. Word has length 265 [2024-12-01 13:21:41,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:21:41,014 INFO L471 AbstractCegarLoop]: Abstraction has 29168 states and 38441 transitions. [2024-12-01 13:21:41,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 5 states have internal predecessors, (143), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2024-12-01 13:21:41,014 INFO L276 IsEmpty]: Start isEmpty. Operand 29168 states and 38441 transitions. [2024-12-01 13:21:41,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-12-01 13:21:41,033 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:21:41,033 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:21:41,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-01 13:21:41,033 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:21:41,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:21:41,034 INFO L85 PathProgramCache]: Analyzing trace with hash 375314554, now seen corresponding path program 1 times [2024-12-01 13:21:41,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:21:41,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773436472] [2024-12-01 13:21:41,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:41,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:21:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:41,946 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2024-12-01 13:21:41,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:21:41,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773436472] [2024-12-01 13:21:41,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773436472] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:21:41,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:21:41,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 13:21:41,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980593351] [2024-12-01 13:21:41,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:21:41,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 13:21:41,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:21:41,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 13:21:41,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 13:21:41,948 INFO L87 Difference]: Start difference. First operand 29168 states and 38441 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-12-01 13:21:42,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:21:42,901 INFO L93 Difference]: Finished difference Result 58297 states and 76832 transitions. [2024-12-01 13:21:42,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 13:21:42,902 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 266 [2024-12-01 13:21:42,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:21:43,016 INFO L225 Difference]: With dead ends: 58297 [2024-12-01 13:21:43,016 INFO L226 Difference]: Without dead ends: 29169 [2024-12-01 13:21:43,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 13:21:43,085 INFO L435 NwaCegarLoop]: 1119 mSDtfsCounter, 0 mSDsluCounter, 2236 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3355 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:21:43,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3355 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:21:43,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29169 states. [2024-12-01 13:21:44,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29169 to 29169. [2024-12-01 13:21:44,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29169 states, 20932 states have (on average 1.2502388687177528) internal successors, (26170), 21384 states have internal predecessors, (26170), 5497 states have call successors, (5497), 2274 states have call predecessors, (5497), 2739 states have return successors, (6775), 5846 states have call predecessors, (6775), 5496 states have call successors, (6775) [2024-12-01 13:21:44,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29169 states to 29169 states and 38442 transitions. [2024-12-01 13:21:44,263 INFO L78 Accepts]: Start accepts. Automaton has 29169 states and 38442 transitions. Word has length 266 [2024-12-01 13:21:44,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:21:44,263 INFO L471 AbstractCegarLoop]: Abstraction has 29169 states and 38442 transitions. [2024-12-01 13:21:44,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-12-01 13:21:44,264 INFO L276 IsEmpty]: Start isEmpty. Operand 29169 states and 38442 transitions. [2024-12-01 13:21:44,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-12-01 13:21:44,276 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:21:44,276 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:21:44,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-01 13:21:44,276 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:21:44,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:21:44,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1695309973, now seen corresponding path program 1 times [2024-12-01 13:21:44,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:21:44,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972501089] [2024-12-01 13:21:44,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:44,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:21:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:44,997 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2024-12-01 13:21:44,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:21:44,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972501089] [2024-12-01 13:21:44,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972501089] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:21:44,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997087035] [2024-12-01 13:21:44,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:44,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:21:44,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:21:45,000 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:21:45,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-01 13:21:46,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:46,185 INFO L256 TraceCheckSpWp]: Trace formula consists of 2519 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-01 13:21:46,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:21:46,269 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 132 proven. 1 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2024-12-01 13:21:46,269 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:21:46,777 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2024-12-01 13:21:46,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997087035] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:21:46,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-01 13:21:46,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 6] total 10 [2024-12-01 13:21:46,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811141846] [2024-12-01 13:21:46,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:21:46,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 13:21:46,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:21:46,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 13:21:46,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:21:46,779 INFO L87 Difference]: Start difference. First operand 29169 states and 38442 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-12-01 13:21:47,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:21:47,785 INFO L93 Difference]: Finished difference Result 58292 states and 76826 transitions. [2024-12-01 13:21:47,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 13:21:47,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 267 [2024-12-01 13:21:47,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:21:47,906 INFO L225 Difference]: With dead ends: 58292 [2024-12-01 13:21:47,906 INFO L226 Difference]: Without dead ends: 29170 [2024-12-01 13:21:47,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 529 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:21:47,976 INFO L435 NwaCegarLoop]: 1119 mSDtfsCounter, 0 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3354 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:21:47,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3354 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:21:47,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29170 states. [2024-12-01 13:21:48,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29170 to 29170. [2024-12-01 13:21:48,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29170 states, 20933 states have (on average 1.2502269144413127) internal successors, (26171), 21385 states have internal predecessors, (26171), 5497 states have call successors, (5497), 2274 states have call predecessors, (5497), 2739 states have return successors, (6775), 5846 states have call predecessors, (6775), 5496 states have call successors, (6775) [2024-12-01 13:21:49,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29170 states to 29170 states and 38443 transitions. [2024-12-01 13:21:49,089 INFO L78 Accepts]: Start accepts. Automaton has 29170 states and 38443 transitions. Word has length 267 [2024-12-01 13:21:49,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:21:49,090 INFO L471 AbstractCegarLoop]: Abstraction has 29170 states and 38443 transitions. [2024-12-01 13:21:49,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-12-01 13:21:49,090 INFO L276 IsEmpty]: Start isEmpty. Operand 29170 states and 38443 transitions. [2024-12-01 13:21:49,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-12-01 13:21:49,102 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:21:49,102 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:21:49,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-01 13:21:49,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-01 13:21:49,303 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:21:49,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:21:49,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1546914826, now seen corresponding path program 1 times [2024-12-01 13:21:49,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:21:49,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021238861] [2024-12-01 13:21:49,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:49,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:21:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:50,093 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2024-12-01 13:21:50,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:21:50,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021238861] [2024-12-01 13:21:50,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021238861] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:21:50,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894285366] [2024-12-01 13:21:50,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:50,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:21:50,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:21:50,095 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:21:50,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-01 13:21:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:51,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 2534 conjuncts, 129 conjuncts are in the unsatisfiable core [2024-12-01 13:21:51,345 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:21:51,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-12-01 13:21:51,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-12-01 13:21:51,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-12-01 13:21:51,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2024-12-01 13:21:52,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-12-01 13:21:52,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2024-12-01 13:21:53,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2024-12-01 13:21:53,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 59 [2024-12-01 13:21:53,654 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-01 13:21:53,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 34 [2024-12-01 13:21:53,667 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-12-01 13:21:53,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 54 [2024-12-01 13:21:53,791 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 118 proven. 9 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-12-01 13:21:53,791 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:21:54,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2024-12-01 13:21:54,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 46 [2024-12-01 13:21:54,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2024-12-01 13:21:54,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2024-12-01 13:21:55,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2024-12-01 13:21:55,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 46 [2024-12-01 13:21:55,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2024-12-01 13:21:55,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2024-12-01 13:21:56,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2024-12-01 13:21:56,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 75 [2024-12-01 13:21:56,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 67 [2024-12-01 13:21:57,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 51 [2024-12-01 13:21:57,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 43 [2024-12-01 13:21:58,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2024-12-01 13:21:58,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 46 [2024-12-01 13:21:58,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2024-12-01 13:21:58,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2024-12-01 13:21:58,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2024-12-01 13:21:58,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2024-12-01 13:21:58,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 50 [2024-12-01 13:21:58,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 119 [2024-12-01 13:21:59,166 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2024-12-01 13:21:59,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894285366] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:21:59,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-01 13:21:59,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [5, 26] total 46 [2024-12-01 13:21:59,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282668250] [2024-12-01 13:21:59,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:21:59,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-01 13:21:59,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:21:59,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-01 13:21:59,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=1909, Unknown=0, NotChecked=0, Total=2070 [2024-12-01 13:21:59,168 INFO L87 Difference]: Start difference. First operand 29170 states and 38443 transitions. Second operand has 21 states, 19 states have (on average 7.684210526315789) internal successors, (146), 17 states have internal predecessors, (146), 8 states have call successors, (35), 6 states have call predecessors, (35), 6 states have return successors, (34), 9 states have call predecessors, (34), 7 states have call successors, (34) [2024-12-01 13:22:03,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:22:07,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:22:11,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:22:15,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:22:19,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:22:23,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:22:27,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:22:31,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:22:35,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:22:39,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:22:43,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:22:47,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:22:51,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:22:55,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:22:59,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:23:03,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:23:38,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:23:38,437 INFO L93 Difference]: Finished difference Result 53427 states and 71131 transitions. [2024-12-01 13:23:38,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-12-01 13:23:38,438 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 7.684210526315789) internal successors, (146), 17 states have internal predecessors, (146), 8 states have call successors, (35), 6 states have call predecessors, (35), 6 states have return successors, (34), 9 states have call predecessors, (34), 7 states have call successors, (34) Word has length 268 [2024-12-01 13:23:38,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:23:38,575 INFO L225 Difference]: With dead ends: 53427 [2024-12-01 13:23:38,575 INFO L226 Difference]: Without dead ends: 32328 [2024-12-01 13:23:38,626 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 498 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1072 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=423, Invalid=4689, Unknown=0, NotChecked=0, Total=5112 [2024-12-01 13:23:38,626 INFO L435 NwaCegarLoop]: 754 mSDtfsCounter, 3070 mSDsluCounter, 7107 mSDsCounter, 0 mSdLazyCounter, 10429 mSolverCounterSat, 1866 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3203 SdHoareTripleChecker+Valid, 7861 SdHoareTripleChecker+Invalid, 12311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1866 IncrementalHoareTripleChecker+Valid, 10429 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 91.4s IncrementalHoareTripleChecker+Time [2024-12-01 13:23:38,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3203 Valid, 7861 Invalid, 12311 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1866 Valid, 10429 Invalid, 16 Unknown, 0 Unchecked, 91.4s Time] [2024-12-01 13:23:38,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32328 states. [2024-12-01 13:23:42,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32328 to 29534. [2024-12-01 13:23:42,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29534 states, 21185 states have (on average 1.2492329478404531) internal successors, (26465), 21651 states have internal predecessors, (26465), 5567 states have call successors, (5567), 2274 states have call predecessors, (5567), 2781 states have return successors, (7069), 5944 states have call predecessors, (7069), 5566 states have call successors, (7069) [2024-12-01 13:23:42,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29534 states to 29534 states and 39101 transitions. [2024-12-01 13:23:42,237 INFO L78 Accepts]: Start accepts. Automaton has 29534 states and 39101 transitions. Word has length 268 [2024-12-01 13:23:42,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:23:42,237 INFO L471 AbstractCegarLoop]: Abstraction has 29534 states and 39101 transitions. [2024-12-01 13:23:42,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 7.684210526315789) internal successors, (146), 17 states have internal predecessors, (146), 8 states have call successors, (35), 6 states have call predecessors, (35), 6 states have return successors, (34), 9 states have call predecessors, (34), 7 states have call successors, (34) [2024-12-01 13:23:42,237 INFO L276 IsEmpty]: Start isEmpty. Operand 29534 states and 39101 transitions. [2024-12-01 13:23:42,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-12-01 13:23:42,251 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:23:42,251 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:23:42,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-01 13:23:42,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:23:42,452 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:23:42,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:23:42,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1205103823, now seen corresponding path program 1 times [2024-12-01 13:23:42,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:23:42,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640020971] [2024-12-01 13:23:42,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:23:42,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:23:42,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:23:43,381 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2024-12-01 13:23:43,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:23:43,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640020971] [2024-12-01 13:23:43,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640020971] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:23:43,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:23:43,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-01 13:23:43,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086888492] [2024-12-01 13:23:43,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:23:43,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-01 13:23:43,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:23:43,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-01 13:23:43,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-01 13:23:43,383 INFO L87 Difference]: Start difference. First operand 29534 states and 39101 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (41), 4 states have call predecessors, (41), 2 states have call successors, (41) [2024-12-01 13:23:46,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:23:46,821 INFO L93 Difference]: Finished difference Result 59561 states and 79610 transitions. [2024-12-01 13:23:46,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-01 13:23:46,822 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (41), 4 states have call predecessors, (41), 2 states have call successors, (41) Word has length 300 [2024-12-01 13:23:46,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:23:46,994 INFO L225 Difference]: With dead ends: 59561 [2024-12-01 13:23:46,994 INFO L226 Difference]: Without dead ends: 30078 [2024-12-01 13:23:47,055 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-01 13:23:47,055 INFO L435 NwaCegarLoop]: 1120 mSDtfsCounter, 0 mSDsluCounter, 5596 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6716 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:23:47,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6716 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:23:47,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30078 states. [2024-12-01 13:23:50,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30078 to 30066. [2024-12-01 13:23:50,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30066 states, 21605 states have (on average 1.244387873177505) internal successors, (26885), 22001 states have internal predecessors, (26885), 5567 states have call successors, (5567), 2274 states have call predecessors, (5567), 2893 states have return successors, (7383), 6126 states have call predecessors, (7383), 5566 states have call successors, (7383) [2024-12-01 13:23:50,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30066 states to 30066 states and 39835 transitions. [2024-12-01 13:23:50,869 INFO L78 Accepts]: Start accepts. Automaton has 30066 states and 39835 transitions. Word has length 300 [2024-12-01 13:23:50,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:23:50,870 INFO L471 AbstractCegarLoop]: Abstraction has 30066 states and 39835 transitions. [2024-12-01 13:23:50,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (41), 4 states have call predecessors, (41), 2 states have call successors, (41) [2024-12-01 13:23:50,870 INFO L276 IsEmpty]: Start isEmpty. Operand 30066 states and 39835 transitions. [2024-12-01 13:23:50,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-12-01 13:23:50,884 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:23:50,884 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:23:50,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-01 13:23:50,884 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:23:50,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:23:50,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1877918426, now seen corresponding path program 1 times [2024-12-01 13:23:50,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:23:50,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906001508] [2024-12-01 13:23:50,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:23:50,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:23:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:23:51,671 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2024-12-01 13:23:51,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:23:51,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906001508] [2024-12-01 13:23:51,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906001508] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:23:51,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332609969] [2024-12-01 13:23:51,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:23:51,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:23:51,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:23:51,673 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:23:51,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-01 13:23:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:23:52,963 INFO L256 TraceCheckSpWp]: Trace formula consists of 2538 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-01 13:23:52,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:23:53,414 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 88 proven. 8 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2024-12-01 13:23:53,414 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:23:54,839 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2024-12-01 13:23:54,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332609969] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:23:54,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-01 13:23:54,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5, 8] total 15 [2024-12-01 13:23:54,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284865888] [2024-12-01 13:23:54,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:23:54,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-01 13:23:54,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:23:54,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-01 13:23:54,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-12-01 13:23:54,841 INFO L87 Difference]: Start difference. First operand 30066 states and 39835 transitions. Second operand has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 9 states have internal predecessors, (143), 7 states have call successors, (35), 4 states have call predecessors, (35), 4 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) [2024-12-01 13:23:58,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:24:02,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 13:24:17,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:24:17,917 INFO L93 Difference]: Finished difference Result 81633 states and 114146 transitions. [2024-12-01 13:24:17,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-01 13:24:17,918 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 9 states have internal predecessors, (143), 7 states have call successors, (35), 4 states have call predecessors, (35), 4 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) Word has length 269 [2024-12-01 13:24:17,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:24:18,140 INFO L225 Difference]: With dead ends: 81633 [2024-12-01 13:24:18,140 INFO L226 Difference]: Without dead ends: 59170 [2024-12-01 13:24:18,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 528 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=109, Invalid=541, Unknown=0, NotChecked=0, Total=650 [2024-12-01 13:24:18,207 INFO L435 NwaCegarLoop]: 1632 mSDtfsCounter, 3522 mSDsluCounter, 6501 mSDsCounter, 0 mSdLazyCounter, 5417 mSolverCounterSat, 1738 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3622 SdHoareTripleChecker+Valid, 8133 SdHoareTripleChecker+Invalid, 7157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1738 IncrementalHoareTripleChecker+Valid, 5417 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2024-12-01 13:24:18,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3622 Valid, 8133 Invalid, 7157 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1738 Valid, 5417 Invalid, 2 Unknown, 0 Unchecked, 17.1s Time] [2024-12-01 13:24:18,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59170 states. [2024-12-01 13:24:23,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59170 to 41202. [2024-12-01 13:24:23,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41202 states, 29568 states have (on average 1.2429991883116882) internal successors, (36753), 30096 states have internal predecessors, (36753), 7763 states have call successors, (7763), 2979 states have call predecessors, (7763), 3870 states have return successors, (10236), 8616 states have call predecessors, (10236), 7762 states have call successors, (10236) [2024-12-01 13:24:23,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41202 states to 41202 states and 54752 transitions. [2024-12-01 13:24:23,471 INFO L78 Accepts]: Start accepts. Automaton has 41202 states and 54752 transitions. Word has length 269 [2024-12-01 13:24:23,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:24:23,472 INFO L471 AbstractCegarLoop]: Abstraction has 41202 states and 54752 transitions. [2024-12-01 13:24:23,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 9 states have internal predecessors, (143), 7 states have call successors, (35), 4 states have call predecessors, (35), 4 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) [2024-12-01 13:24:23,472 INFO L276 IsEmpty]: Start isEmpty. Operand 41202 states and 54752 transitions. [2024-12-01 13:24:23,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-12-01 13:24:23,485 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:24:23,485 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:23,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-01 13:24:23,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:24:23,686 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:24:23,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:24:23,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1510729296, now seen corresponding path program 1 times [2024-12-01 13:24:23,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:24:23,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337066798] [2024-12-01 13:24:23,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:24:23,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:24:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:24:24,418 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2024-12-01 13:24:24,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:24:24,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337066798] [2024-12-01 13:24:24,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337066798] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:24:24,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287889026] [2024-12-01 13:24:24,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:24:24,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:24:24,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:24:24,420 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:24:24,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-01 13:24:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:24:26,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 2800 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-01 13:24:26,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:24:26,088 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-12-01 13:24:26,088 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:24:26,861 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2024-12-01 13:24:26,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287889026] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 13:24:26,862 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 13:24:26,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 5] total 11 [2024-12-01 13:24:26,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890488593] [2024-12-01 13:24:26,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 13:24:26,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-01 13:24:26,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:24:26,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-01 13:24:26,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-12-01 13:24:26,864 INFO L87 Difference]: Start difference. First operand 41202 states and 54752 transitions. Second operand has 11 states, 11 states have (on average 24.272727272727273) internal successors, (267), 11 states have internal predecessors, (267), 2 states have call successors, (73), 2 states have call predecessors, (73), 5 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2024-12-01 13:24:31,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:24:31,714 INFO L93 Difference]: Finished difference Result 82371 states and 109463 transitions. [2024-12-01 13:24:31,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-01 13:24:31,714 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 24.272727272727273) internal successors, (267), 11 states have internal predecessors, (267), 2 states have call successors, (73), 2 states have call predecessors, (73), 5 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) Word has length 306 [2024-12-01 13:24:31,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:24:31,862 INFO L225 Difference]: With dead ends: 82371 [2024-12-01 13:24:31,862 INFO L226 Difference]: Without dead ends: 41206 [2024-12-01 13:24:31,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 606 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-12-01 13:24:31,940 INFO L435 NwaCegarLoop]: 1117 mSDtfsCounter, 0 mSDsluCounter, 4466 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5583 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 13:24:31,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5583 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 13:24:31,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41206 states. [2024-12-01 13:24:37,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41206 to 41206. [2024-12-01 13:24:37,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41206 states, 29572 states have (on average 1.242966319491411) internal successors, (36757), 30100 states have internal predecessors, (36757), 7763 states have call successors, (7763), 2979 states have call predecessors, (7763), 3870 states have return successors, (10236), 8616 states have call predecessors, (10236), 7762 states have call successors, (10236) [2024-12-01 13:24:37,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41206 states to 41206 states and 54756 transitions. [2024-12-01 13:24:37,240 INFO L78 Accepts]: Start accepts. Automaton has 41206 states and 54756 transitions. Word has length 306 [2024-12-01 13:24:37,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:24:37,241 INFO L471 AbstractCegarLoop]: Abstraction has 41206 states and 54756 transitions. [2024-12-01 13:24:37,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 24.272727272727273) internal successors, (267), 11 states have internal predecessors, (267), 2 states have call successors, (73), 2 states have call predecessors, (73), 5 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2024-12-01 13:24:37,241 INFO L276 IsEmpty]: Start isEmpty. Operand 41206 states and 54756 transitions. [2024-12-01 13:24:37,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-12-01 13:24:37,253 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:24:37,254 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:37,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-01 13:24:37,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:24:37,454 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:24:37,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:24:37,455 INFO L85 PathProgramCache]: Analyzing trace with hash 944609524, now seen corresponding path program 2 times [2024-12-01 13:24:37,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:24:37,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136002400] [2024-12-01 13:24:37,455 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-01 13:24:37,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:24:38,077 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-01 13:24:38,077 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:24:38,515 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2024-12-01 13:24:38,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:24:38,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136002400] [2024-12-01 13:24:38,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136002400] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:24:38,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422013350] [2024-12-01 13:24:38,515 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-01 13:24:38,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:24:38,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:24:38,517 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:24:38,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09562da5-3e89-48c8-8db9-822bb99be774/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process