./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--phy--dp83640.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/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--phy--dp83640.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC --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 09c104d62ffc45fecdd321fcd218065640bd0081501b6da04b741d2fcf55e306 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:38:31,586 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:38:31,676 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-23 18:38:31,682 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:38:31,683 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:38:31,727 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:38:31,728 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:38:31,729 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:38:31,729 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:38:31,730 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:38:31,730 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:38:31,730 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:38:31,731 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:38:31,731 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:38:31,731 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:38:31,731 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:38:31,731 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:38:31,731 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:38:31,731 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:38:31,731 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:38:31,731 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:38:31,732 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:38:31,732 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:38:31,734 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:38:31,734 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:38:31,734 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:38:31,734 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:38:31,734 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:38:31,734 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:38:31,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:38:31,735 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:38:31,735 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:38:31,735 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:38:31,736 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:38:31,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:38:31,736 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:38:31,736 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:38:31,736 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:38:31,736 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:38:31,736 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:38:31,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:38:31,737 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:38:31,737 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:38:31,737 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:38:31,737 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:38:31,738 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_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC 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 -> 09c104d62ffc45fecdd321fcd218065640bd0081501b6da04b741d2fcf55e306 [2024-11-23 18:38:32,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:38:32,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:38:32,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:38:32,093 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:38:32,094 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:38:32,097 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i [2024-11-23 18:38:35,233 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/data/60f1361c2/564b5ad308424e75a31db0749d7835c1/FLAG576eed98b [2024-11-23 18:38:35,979 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:38:35,980 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i [2024-11-23 18:38:36,028 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/data/60f1361c2/564b5ad308424e75a31db0749d7835c1/FLAG576eed98b [2024-11-23 18:38:36,051 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/data/60f1361c2/564b5ad308424e75a31db0749d7835c1 [2024-11-23 18:38:36,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:38:36,056 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:38:36,057 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:38:36,058 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:38:36,063 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:38:36,064 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:38:36" (1/1) ... [2024-11-23 18:38:36,065 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@378f7c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:36, skipping insertion in model container [2024-11-23 18:38:36,065 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:38:36" (1/1) ... [2024-11-23 18:38:36,216 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:38:37,255 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_fb63a471-2ec6-4434-8150-28329b801415/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i[161372,161385] [2024-11-23 18:38:37,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:38:37,810 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:38:38,030 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_fb63a471-2ec6-4434-8150-28329b801415/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i[161372,161385] [2024-11-23 18:38:38,159 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--drivers/net/--X--defaultlinux-3.16-rc1.tar.xz--X--205_9a--X--cpachecker/linux-3.16-rc1.tar.xz/csd_deg_dscv/998/dscv_tempdir/dscv/ri/205_9a/drivers/net/phy/dp83640.o.c.prepared"), "i" (952), "i" (12UL)); [6659-6660] [2024-11-23 18:38:38,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:38:38,346 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:38:38,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:38 WrapperNode [2024-11-23 18:38:38,347 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:38:38,348 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:38:38,349 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:38:38,349 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:38:38,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:38" (1/1) ... [2024-11-23 18:38:38,409 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:38" (1/1) ... [2024-11-23 18:38:38,576 INFO L138 Inliner]: procedures = 187, calls = 879, calls flagged for inlining = 75, calls inlined = 64, statements flattened = 2379 [2024-11-23 18:38:38,577 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:38:38,578 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:38:38,579 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:38:38,579 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:38:38,590 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:38" (1/1) ... [2024-11-23 18:38:38,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:38" (1/1) ... [2024-11-23 18:38:38,627 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:38" (1/1) ... [2024-11-23 18:38:39,113 INFO L175 MemorySlicer]: Split 387 memory accesses to 16 slices as follows [2, 2, 6, 41, 5, 2, 245, 2, 6, 6, 16, 3, 20, 14, 15, 2]. 63 percent of accesses are in the largest equivalence class. The 55 initializations are split as follows [2, 0, 6, 0, 0, 0, 2, 0, 0, 6, 16, 0, 15, 0, 8, 0]. The 172 writes are split as follows [0, 1, 0, 41, 0, 1, 107, 2, 2, 0, 0, 3, 2, 12, 0, 1]. [2024-11-23 18:38:39,117 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:38" (1/1) ... [2024-11-23 18:38:39,117 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:38" (1/1) ... [2024-11-23 18:38:39,223 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:38" (1/1) ... [2024-11-23 18:38:39,228 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:38" (1/1) ... [2024-11-23 18:38:39,250 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:38" (1/1) ... [2024-11-23 18:38:39,291 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:38" (1/1) ... [2024-11-23 18:38:39,301 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:38" (1/1) ... [2024-11-23 18:38:39,325 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:38:39,326 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:38:39,326 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:38:39,326 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:38:39,327 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:38" (1/1) ... [2024-11-23 18:38:39,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:38:39,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:38:39,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:38:39,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:38:39,406 INFO L130 BoogieDeclarations]: Found specification of procedure broadcast_write [2024-11-23 18:38:39,407 INFO L138 BoogieDeclarations]: Found implementation of procedure broadcast_write [2024-11-23 18:38:39,407 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-23 18:38:39,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-23 18:38:39,407 INFO L130 BoogieDeclarations]: Found specification of procedure genphy_config_aneg [2024-11-23 18:38:39,408 INFO L138 BoogieDeclarations]: Found implementation of procedure genphy_config_aneg [2024-11-23 18:38:39,408 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2024-11-23 18:38:39,408 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2024-11-23 18:38:39,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-23 18:38:39,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-23 18:38:39,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-23 18:38:39,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-23 18:38:39,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-23 18:38:39,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-23 18:38:39,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-23 18:38:39,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-23 18:38:39,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-23 18:38:39,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-23 18:38:39,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-23 18:38:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-23 18:38:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-23 18:38:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-23 18:38:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-11-23 18:38:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-11-23 18:38:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-23 18:38:39,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-23 18:38:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_clock_put [2024-11-23 18:38:39,411 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_clock_put [2024-11-23 18:38:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-23 18:38:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-23 18:38:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-23 18:38:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-23 18:38:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-23 18:38:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-23 18:38:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-23 18:38:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-23 18:38:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-23 18:38:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-23 18:38:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-23 18:38:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-23 18:38:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-23 18:38:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-23 18:38:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-11-23 18:38:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-11-23 18:38:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-23 18:38:39,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-23 18:38:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 18:38:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 18:38:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 18:38:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 18:38:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-23 18:38:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-23 18:38:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-23 18:38:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-23 18:38:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-23 18:38:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-23 18:38:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-23 18:38:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-23 18:38:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-23 18:38:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-23 18:38:39,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-23 18:38:39,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-23 18:38:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2024-11-23 18:38:39,416 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2024-11-23 18:38:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure phy2txts [2024-11-23 18:38:39,417 INFO L138 BoogieDeclarations]: Found implementation of procedure phy2txts [2024-11-23 18:38:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2024-11-23 18:38:39,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2024-11-23 18:38:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_ts_info [2024-11-23 18:38:39,418 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_ts_info [2024-11-23 18:38:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-23 18:38:39,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-23 18:38:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2024-11-23 18:38:39,420 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2024-11-23 18:38:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_write [2024-11-23 18:38:39,420 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_write [2024-11-23 18:38:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_config_intr [2024-11-23 18:38:39,421 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_config_intr [2024-11-23 18:38:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure tdr_write [2024-11-23 18:38:39,422 INFO L138 BoogieDeclarations]: Found implementation of procedure tdr_write [2024-11-23 18:38:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2024-11-23 18:38:39,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2024-11-23 18:38:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-23 18:38:39,422 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-23 18:38:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure exts_chan_to_edata [2024-11-23 18:38:39,422 INFO L138 BoogieDeclarations]: Found implementation of procedure exts_chan_to_edata [2024-11-23 18:38:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure skb_complete_tx_timestamp [2024-11-23 18:38:39,422 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_complete_tx_timestamp [2024-11-23 18:38:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2024-11-23 18:38:39,422 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2024-11-23 18:38:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2024-11-23 18:38:39,423 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2024-11-23 18:38:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 18:38:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 18:38:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 18:38:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 18:38:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-23 18:38:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-23 18:38:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-23 18:38:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-23 18:38:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-23 18:38:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-23 18:38:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-23 18:38:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-23 18:38:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-23 18:38:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-23 18:38:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-23 18:38:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-23 18:38:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-23 18:38:39,426 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-23 18:38:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-23 18:38:39,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-23 18:38:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_rxtstamp [2024-11-23 18:38:39,426 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_rxtstamp [2024-11-23 18:38:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2024-11-23 18:38:39,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2024-11-23 18:38:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-23 18:38:39,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-23 18:38:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2024-11-23 18:38:39,426 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2024-11-23 18:38:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-23 18:38:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-23 18:38:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-23 18:38:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-23 18:38:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-23 18:38:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-23 18:38:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-23 18:38:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-23 18:38:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-23 18:38:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-11-23 18:38:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-11-23 18:38:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2024-11-23 18:38:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2024-11-23 18:38:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#13 [2024-11-23 18:38:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#14 [2024-11-23 18:38:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#15 [2024-11-23 18:38:39,427 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-23 18:38:39,427 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-23 18:38:39,427 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-23 18:38:39,427 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-23 18:38:39,428 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-23 18:38:39,428 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-23 18:38:39,428 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-23 18:38:39,431 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-23 18:38:39,432 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-23 18:38:39,432 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-11-23 18:38:39,432 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-11-23 18:38:39,432 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2024-11-23 18:38:39,432 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2024-11-23 18:38:39,432 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#13 [2024-11-23 18:38:39,433 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#14 [2024-11-23 18:38:39,433 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#15 [2024-11-23 18:38:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 18:38:39,433 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 18:38:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 18:38:39,434 INFO L130 BoogieDeclarations]: Found specification of procedure prune_rx_ts [2024-11-23 18:38:39,434 INFO L138 BoogieDeclarations]: Found implementation of procedure prune_rx_ts [2024-11-23 18:38:39,434 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-23 18:38:39,435 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-23 18:38:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2024-11-23 18:38:39,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2024-11-23 18:38:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:38:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_config_init [2024-11-23 18:38:39,436 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_config_init [2024-11-23 18:38:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 18:38:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-23 18:38:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-23 18:38:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-23 18:38:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-23 18:38:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-23 18:38:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-23 18:38:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-23 18:38:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-23 18:38:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-23 18:38:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-23 18:38:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-23 18:38:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-23 18:38:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-23 18:38:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-23 18:38:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-23 18:38:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-23 18:38:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-23 18:38:39,437 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-23 18:38:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_ktime [2024-11-23 18:38:39,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_ktime [2024-11-23 18:38:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2024-11-23 18:38:39,437 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2024-11-23 18:38:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-23 18:38:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-23 18:38:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-23 18:38:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-23 18:38:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-23 18:38:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-23 18:38:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-23 18:38:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-23 18:38:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-23 18:38:39,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-23 18:38:39,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-23 18:38:39,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-23 18:38:39,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-23 18:38:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-23 18:38:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-23 18:38:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-23 18:38:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2024-11-23 18:38:39,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2024-11-23 18:38:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2024-11-23 18:38:39,441 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2024-11-23 18:38:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-23 18:38:39,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-23 18:38:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-23 18:38:39,441 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-23 18:38:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure enable_status_frames [2024-11-23 18:38:39,441 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_status_frames [2024-11-23 18:38:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_hwtstamp [2024-11-23 18:38:39,441 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_hwtstamp [2024-11-23 18:38:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2024-11-23 18:38:39,441 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2024-11-23 18:38:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2024-11-23 18:38:39,441 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2024-11-23 18:38:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2024-11-23 18:38:39,442 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2024-11-23 18:38:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 18:38:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-23 18:38:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-23 18:38:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-23 18:38:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-23 18:38:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-23 18:38:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-23 18:38:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-23 18:38:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-23 18:38:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-23 18:38:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-23 18:38:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-23 18:38:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-23 18:38:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-23 18:38:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-23 18:38:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-23 18:38:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-23 18:38:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2024-11-23 18:38:39,442 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2024-11-23 18:38:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-23 18:38:39,442 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-23 18:38:39,443 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-23 18:38:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-23 18:38:39,443 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_clock_get [2024-11-23 18:38:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_clock_get [2024-11-23 18:38:39,443 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_ack_interrupt [2024-11-23 18:38:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_ack_interrupt [2024-11-23 18:38:39,443 INFO L130 BoogieDeclarations]: Found specification of procedure ext_read [2024-11-23 18:38:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ext_read [2024-11-23 18:38:39,443 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2024-11-23 18:38:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2024-11-23 18:38:39,443 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-23 18:38:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-23 18:38:39,443 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-11-23 18:38:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-11-23 18:38:39,443 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2024-11-23 18:38:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2024-11-23 18:38:39,443 INFO L130 BoogieDeclarations]: Found specification of procedure skb_mac_header [2024-11-23 18:38:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_mac_header [2024-11-23 18:38:39,443 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_txtstamp [2024-11-23 18:38:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_txtstamp [2024-11-23 18:38:39,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 18:38:39,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 18:38:39,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 18:38:39,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 18:38:39,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 18:38:39,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-23 18:38:39,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-23 18:38:39,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-23 18:38:39,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-23 18:38:39,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-23 18:38:39,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-23 18:38:39,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-23 18:38:39,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-23 18:38:39,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-23 18:38:39,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-23 18:38:39,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-23 18:38:39,450 INFO L130 BoogieDeclarations]: Found specification of procedure enable_broadcast [2024-11-23 18:38:39,450 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_broadcast [2024-11-23 18:38:39,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-23 18:38:39,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-23 18:38:39,450 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-23 18:38:39,453 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-23 18:38:39,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:38:39,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:38:39,453 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_timespec [2024-11-23 18:38:39,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_timespec [2024-11-23 18:38:39,453 INFO L130 BoogieDeclarations]: Found specification of procedure ext_write [2024-11-23 18:38:39,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ext_write [2024-11-23 18:38:39,454 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-23 18:38:39,454 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-23 18:38:40,326 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:38:40,332 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:38:40,393 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-23 18:38:48,456 INFO L? ?]: Removed 987 outVars from TransFormulas that were not future-live. [2024-11-23 18:38:48,456 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:38:48,501 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:38:48,501 INFO L312 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-23 18:38:48,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:38:48 BoogieIcfgContainer [2024-11-23 18:38:48,502 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:38:48,504 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:38:48,504 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:38:48,509 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:38:48,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:38:36" (1/3) ... [2024-11-23 18:38:48,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2278d7c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:38:48, skipping insertion in model container [2024-11-23 18:38:48,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:38" (2/3) ... [2024-11-23 18:38:48,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2278d7c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:38:48, skipping insertion in model container [2024-11-23 18:38:48,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:38:48" (3/3) ... [2024-11-23 18:38:48,512 INFO L128 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i [2024-11-23 18:38:48,529 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:38:48,536 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i that has 80 procedures, 1031 locations, 1 initial locations, 21 loop locations, and 1 error locations. [2024-11-23 18:38:48,663 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:38:48,682 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;@22131f69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:38:48,682 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:38:48,693 INFO L276 IsEmpty]: Start isEmpty. Operand has 970 states, 697 states have (on average 1.338593974175036) internal successors, (933), 715 states have internal predecessors, (933), 208 states have call successors, (208), 64 states have call predecessors, (208), 63 states have return successors, (205), 203 states have call predecessors, (205), 205 states have call successors, (205) [2024-11-23 18:38:48,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-23 18:38:48,708 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:38:48,709 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:38:48,709 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:38:48,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:38:48,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1017676504, now seen corresponding path program 1 times [2024-11-23 18:38:48,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:38:48,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804804162] [2024-11-23 18:38:48,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:38:48,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:38:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:38:50,564 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 18:38:50,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:38:50,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804804162] [2024-11-23 18:38:50,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804804162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:38:50,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:38:50,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:38:50,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125506259] [2024-11-23 18:38:50,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:38:50,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:38:50,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:38:50,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:38:50,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:38:50,599 INFO L87 Difference]: Start difference. First operand has 970 states, 697 states have (on average 1.338593974175036) internal successors, (933), 715 states have internal predecessors, (933), 208 states have call successors, (208), 64 states have call predecessors, (208), 63 states have return successors, (205), 203 states have call predecessors, (205), 205 states have call successors, (205) Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-23 18:38:51,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:38:51,182 INFO L93 Difference]: Finished difference Result 2892 states and 4094 transitions. [2024-11-23 18:38:51,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:38:51,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-23 18:38:51,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:38:51,221 INFO L225 Difference]: With dead ends: 2892 [2024-11-23 18:38:51,221 INFO L226 Difference]: Without dead ends: 1875 [2024-11-23 18:38:51,232 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:38:51,236 INFO L435 NwaCegarLoop]: 1324 mSDtfsCounter, 1302 mSDsluCounter, 3953 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 5277 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:38:51,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1302 Valid, 5277 Invalid, 47 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 18:38:51,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1875 states. [2024-11-23 18:38:51,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1875 to 1872. [2024-11-23 18:38:51,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1872 states, 1350 states have (on average 1.305925925925926) internal successors, (1763), 1376 states have internal predecessors, (1763), 398 states have call successors, (398), 124 states have call predecessors, (398), 123 states have return successors, (405), 393 states have call predecessors, (405), 397 states have call successors, (405) [2024-11-23 18:38:51,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1872 states to 1872 states and 2566 transitions. [2024-11-23 18:38:51,489 INFO L78 Accepts]: Start accepts. Automaton has 1872 states and 2566 transitions. Word has length 32 [2024-11-23 18:38:51,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:38:51,490 INFO L471 AbstractCegarLoop]: Abstraction has 1872 states and 2566 transitions. [2024-11-23 18:38:51,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-23 18:38:51,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1872 states and 2566 transitions. [2024-11-23 18:38:51,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-23 18:38:51,511 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:38:51,511 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:38:51,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 18:38:51,511 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:38:51,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:38:51,512 INFO L85 PathProgramCache]: Analyzing trace with hash 222573450, now seen corresponding path program 1 times [2024-11-23 18:38:51,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:38:51,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339396309] [2024-11-23 18:38:51,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:38:51,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:38:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:38:52,384 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 18:38:52,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:38:52,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339396309] [2024-11-23 18:38:52,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339396309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:38:52,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:38:52,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:38:52,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863955435] [2024-11-23 18:38:52,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:38:52,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:38:52,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:38:52,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:38:52,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:38:52,390 INFO L87 Difference]: Start difference. First operand 1872 states and 2566 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-23 18:38:52,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:38:52,806 INFO L93 Difference]: Finished difference Result 3832 states and 5239 transitions. [2024-11-23 18:38:52,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:38:52,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 75 [2024-11-23 18:38:52,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:38:52,825 INFO L225 Difference]: With dead ends: 3832 [2024-11-23 18:38:52,826 INFO L226 Difference]: Without dead ends: 1968 [2024-11-23 18:38:52,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:38:52,836 INFO L435 NwaCegarLoop]: 1349 mSDtfsCounter, 96 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:38:52,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 2584 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 18:38:52,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2024-11-23 18:38:52,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1959. [2024-11-23 18:38:52,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1959 states, 1417 states have (on average 1.3041637261820749) internal successors, (1848), 1444 states have internal predecessors, (1848), 409 states have call successors, (409), 133 states have call predecessors, (409), 132 states have return successors, (416), 403 states have call predecessors, (416), 408 states have call successors, (416) [2024-11-23 18:38:53,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 2673 transitions. [2024-11-23 18:38:53,013 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 2673 transitions. Word has length 75 [2024-11-23 18:38:53,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:38:53,014 INFO L471 AbstractCegarLoop]: Abstraction has 1959 states and 2673 transitions. [2024-11-23 18:38:53,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-23 18:38:53,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 2673 transitions. [2024-11-23 18:38:53,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-23 18:38:53,029 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:38:53,031 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2024-11-23 18:38:53,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:38:53,031 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:38:53,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:38:53,036 INFO L85 PathProgramCache]: Analyzing trace with hash 471380771, now seen corresponding path program 1 times [2024-11-23 18:38:53,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:38:53,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376897506] [2024-11-23 18:38:53,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:38:53,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:38:53,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:38:53,840 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-23 18:38:53,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:38:53,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376897506] [2024-11-23 18:38:53,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376897506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:38:53,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:38:53,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:38:53,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513273057] [2024-11-23 18:38:53,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:38:53,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:38:53,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:38:53,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:38:53,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:38:53,844 INFO L87 Difference]: Start difference. First operand 1959 states and 2673 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-23 18:38:57,866 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 [] [2024-11-23 18:38:58,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:38:58,318 INFO L93 Difference]: Finished difference Result 5383 states and 7323 transitions. [2024-11-23 18:38:58,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:38:58,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 99 [2024-11-23 18:38:58,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:38:58,348 INFO L225 Difference]: With dead ends: 5383 [2024-11-23 18:38:58,348 INFO L226 Difference]: Without dead ends: 3453 [2024-11-23 18:38:58,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:38:58,361 INFO L435 NwaCegarLoop]: 1446 mSDtfsCounter, 1180 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 2496 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:38:58,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 2496 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 62 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-11-23 18:38:58,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3453 states. [2024-11-23 18:38:58,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3453 to 3444. [2024-11-23 18:38:58,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3444 states, 2516 states have (on average 1.2957074721780604) internal successors, (3260), 2556 states have internal predecessors, (3260), 682 states have call successors, (682), 246 states have call predecessors, (682), 245 states have return successors, (692), 671 states have call predecessors, (692), 681 states have call successors, (692) [2024-11-23 18:38:58,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3444 states to 3444 states and 4634 transitions. [2024-11-23 18:38:58,705 INFO L78 Accepts]: Start accepts. Automaton has 3444 states and 4634 transitions. Word has length 99 [2024-11-23 18:38:58,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:38:58,706 INFO L471 AbstractCegarLoop]: Abstraction has 3444 states and 4634 transitions. [2024-11-23 18:38:58,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-23 18:38:58,706 INFO L276 IsEmpty]: Start isEmpty. Operand 3444 states and 4634 transitions. [2024-11-23 18:38:58,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-23 18:38:58,714 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:38:58,715 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2024-11-23 18:38:58,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:38:58,715 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:38:58,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:38:58,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1240789473, now seen corresponding path program 1 times [2024-11-23 18:38:58,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:38:58,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813033579] [2024-11-23 18:38:58,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:38:58,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:38:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:38:59,463 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-23 18:38:59,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:38:59,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813033579] [2024-11-23 18:38:59,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813033579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:38:59,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:38:59,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:38:59,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418062728] [2024-11-23 18:38:59,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:38:59,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:38:59,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:38:59,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:38:59,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:38:59,466 INFO L87 Difference]: Start difference. First operand 3444 states and 4634 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-23 18:38:59,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:38:59,637 INFO L93 Difference]: Finished difference Result 5199 states and 7008 transitions. [2024-11-23 18:38:59,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:38:59,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 99 [2024-11-23 18:38:59,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:38:59,673 INFO L225 Difference]: With dead ends: 5199 [2024-11-23 18:38:59,673 INFO L226 Difference]: Without dead ends: 3448 [2024-11-23 18:38:59,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:38:59,743 INFO L435 NwaCegarLoop]: 1304 mSDtfsCounter, 3 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2601 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 [2024-11-23 18:38:59,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2601 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:38:59,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3448 states. [2024-11-23 18:38:59,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3448 to 3448. [2024-11-23 18:38:59,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3448 states, 2520 states have (on average 1.2952380952380953) internal successors, (3264), 2560 states have internal predecessors, (3264), 682 states have call successors, (682), 246 states have call predecessors, (682), 245 states have return successors, (692), 671 states have call predecessors, (692), 681 states have call successors, (692) [2024-11-23 18:38:59,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 4638 transitions. [2024-11-23 18:38:59,950 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 4638 transitions. Word has length 99 [2024-11-23 18:38:59,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:38:59,950 INFO L471 AbstractCegarLoop]: Abstraction has 3448 states and 4638 transitions. [2024-11-23 18:38:59,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-23 18:38:59,951 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 4638 transitions. [2024-11-23 18:38:59,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-23 18:38:59,961 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:38:59,961 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2024-11-23 18:38:59,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 18:38:59,962 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:38:59,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:38:59,963 INFO L85 PathProgramCache]: Analyzing trace with hash -966997310, now seen corresponding path program 1 times [2024-11-23 18:38:59,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:38:59,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304535202] [2024-11-23 18:38:59,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:38:59,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:01,713 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-23 18:39:01,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:01,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304535202] [2024-11-23 18:39:01,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304535202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:01,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:01,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 18:39:01,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186936510] [2024-11-23 18:39:01,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:01,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 18:39:01,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:01,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 18:39:01,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:39:01,716 INFO L87 Difference]: Start difference. First operand 3448 states and 4638 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-23 18:39:05,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:39:09,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:39:21,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:21,766 INFO L93 Difference]: Finished difference Result 7663 states and 10355 transitions. [2024-11-23 18:39:21,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 18:39:21,767 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 101 [2024-11-23 18:39:21,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:21,804 INFO L225 Difference]: With dead ends: 7663 [2024-11-23 18:39:21,804 INFO L226 Difference]: Without dead ends: 4244 [2024-11-23 18:39:21,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-23 18:39:21,821 INFO L435 NwaCegarLoop]: 648 mSDtfsCounter, 4244 mSDsluCounter, 1698 mSDsCounter, 0 mSdLazyCounter, 4048 mSolverCounterSat, 1520 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4480 SdHoareTripleChecker+Valid, 2346 SdHoareTripleChecker+Invalid, 5570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1520 IncrementalHoareTripleChecker+Valid, 4048 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:21,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4480 Valid, 2346 Invalid, 5570 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1520 Valid, 4048 Invalid, 2 Unknown, 0 Unchecked, 19.4s Time] [2024-11-23 18:39:21,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4244 states. [2024-11-23 18:39:22,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4244 to 4198. [2024-11-23 18:39:22,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4198 states, 3084 states have (on average 1.298313878080415) internal successors, (4004), 3138 states have internal predecessors, (4004), 818 states have call successors, (818), 290 states have call predecessors, (818), 295 states have return successors, (843), 807 states have call predecessors, (843), 817 states have call successors, (843) [2024-11-23 18:39:22,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4198 states to 4198 states and 5665 transitions. [2024-11-23 18:39:22,089 INFO L78 Accepts]: Start accepts. Automaton has 4198 states and 5665 transitions. Word has length 101 [2024-11-23 18:39:22,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:22,090 INFO L471 AbstractCegarLoop]: Abstraction has 4198 states and 5665 transitions. [2024-11-23 18:39:22,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-23 18:39:22,090 INFO L276 IsEmpty]: Start isEmpty. Operand 4198 states and 5665 transitions. [2024-11-23 18:39:22,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-23 18:39:22,101 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:22,101 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 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] [2024-11-23 18:39:22,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 18:39:22,102 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:22,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:22,102 INFO L85 PathProgramCache]: Analyzing trace with hash -836088135, now seen corresponding path program 1 times [2024-11-23 18:39:22,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:22,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219018736] [2024-11-23 18:39:22,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:22,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:22,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:23,302 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-23 18:39:23,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:23,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219018736] [2024-11-23 18:39:23,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219018736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:23,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:23,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:39:23,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324950779] [2024-11-23 18:39:23,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:23,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:39:23,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:23,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:39:23,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:39:23,305 INFO L87 Difference]: Start difference. First operand 4198 states and 5665 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 18:39:23,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:23,499 INFO L93 Difference]: Finished difference Result 8393 states and 11379 transitions. [2024-11-23 18:39:23,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:39:23,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 129 [2024-11-23 18:39:23,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:23,616 INFO L225 Difference]: With dead ends: 8393 [2024-11-23 18:39:23,616 INFO L226 Difference]: Without dead ends: 4224 [2024-11-23 18:39:23,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:39:23,633 INFO L435 NwaCegarLoop]: 1303 mSDtfsCounter, 0 mSDsluCounter, 3904 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5207 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 [2024-11-23 18:39:23,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5207 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:39:23,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4224 states. [2024-11-23 18:39:23,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4224 to 4222. [2024-11-23 18:39:23,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4222 states, 3102 states have (on average 1.2965828497743392) internal successors, (4022), 3156 states have internal predecessors, (4022), 818 states have call successors, (818), 290 states have call predecessors, (818), 301 states have return successors, (853), 813 states have call predecessors, (853), 817 states have call successors, (853) [2024-11-23 18:39:23,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4222 states to 4222 states and 5693 transitions. [2024-11-23 18:39:23,866 INFO L78 Accepts]: Start accepts. Automaton has 4222 states and 5693 transitions. Word has length 129 [2024-11-23 18:39:23,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:23,866 INFO L471 AbstractCegarLoop]: Abstraction has 4222 states and 5693 transitions. [2024-11-23 18:39:23,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 18:39:23,867 INFO L276 IsEmpty]: Start isEmpty. Operand 4222 states and 5693 transitions. [2024-11-23 18:39:23,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-23 18:39:23,876 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:23,876 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 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] [2024-11-23 18:39:23,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 18:39:23,876 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:23,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:23,877 INFO L85 PathProgramCache]: Analyzing trace with hash -473456997, now seen corresponding path program 1 times [2024-11-23 18:39:23,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:23,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125266826] [2024-11-23 18:39:23,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:23,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:24,756 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-23 18:39:24,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:24,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125266826] [2024-11-23 18:39:24,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125266826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:24,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:24,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:39:24,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540444653] [2024-11-23 18:39:24,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:24,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:39:24,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:24,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:39:24,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:24,758 INFO L87 Difference]: Start difference. First operand 4222 states and 5693 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (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) [2024-11-23 18:39:28,785 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 [] [2024-11-23 18:39:29,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:29,022 INFO L93 Difference]: Finished difference Result 8404 states and 11337 transitions. [2024-11-23 18:39:29,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:39:29,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (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 150 [2024-11-23 18:39:29,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:29,053 INFO L225 Difference]: With dead ends: 8404 [2024-11-23 18:39:29,053 INFO L226 Difference]: Without dead ends: 4198 [2024-11-23 18:39:29,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:29,071 INFO L435 NwaCegarLoop]: 1340 mSDtfsCounter, 1257 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:29,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1257 Valid, 1393 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 18:39:29,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4198 states. [2024-11-23 18:39:29,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4198 to 4198. [2024-11-23 18:39:29,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4198 states, 3080 states have (on average 1.2925324675324674) internal successors, (3981), 3134 states have internal predecessors, (3981), 816 states have call successors, (816), 290 states have call predecessors, (816), 301 states have return successors, (849), 811 states have call predecessors, (849), 815 states have call successors, (849) [2024-11-23 18:39:29,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4198 states to 4198 states and 5646 transitions. [2024-11-23 18:39:29,323 INFO L78 Accepts]: Start accepts. Automaton has 4198 states and 5646 transitions. Word has length 150 [2024-11-23 18:39:29,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:29,323 INFO L471 AbstractCegarLoop]: Abstraction has 4198 states and 5646 transitions. [2024-11-23 18:39:29,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (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) [2024-11-23 18:39:29,325 INFO L276 IsEmpty]: Start isEmpty. Operand 4198 states and 5646 transitions. [2024-11-23 18:39:29,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-23 18:39:29,336 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:29,337 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 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] [2024-11-23 18:39:29,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 18:39:29,337 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:29,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:29,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1030792918, now seen corresponding path program 1 times [2024-11-23 18:39:29,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:29,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033037788] [2024-11-23 18:39:29,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:29,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:31,031 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-23 18:39:31,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:31,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033037788] [2024-11-23 18:39:31,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033037788] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:39:31,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122026375] [2024-11-23 18:39:31,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:31,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:39:31,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:39:31,038 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:39:31,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 18:39:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:32,457 INFO L256 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 18:39:32,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:39:33,201 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 24 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 18:39:33,201 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:39:35,378 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-23 18:39:35,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122026375] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 18:39:35,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 18:39:35,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 8] total 21 [2024-11-23 18:39:35,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922574832] [2024-11-23 18:39:35,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:35,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 18:39:35,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:35,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 18:39:35,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-23 18:39:35,381 INFO L87 Difference]: Start difference. First operand 4198 states and 5646 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 6 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-23 18:39:39,408 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 [] [2024-11-23 18:39:43,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:39:47,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:40:01,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:40:01,143 INFO L93 Difference]: Finished difference Result 9656 states and 13260 transitions. [2024-11-23 18:40:01,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 18:40:01,143 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 6 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) Word has length 158 [2024-11-23 18:40:01,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:40:01,186 INFO L225 Difference]: With dead ends: 9656 [2024-11-23 18:40:01,186 INFO L226 Difference]: Without dead ends: 7148 [2024-11-23 18:40:01,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 309 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=198, Invalid=614, Unknown=0, NotChecked=0, Total=812 [2024-11-23 18:40:01,201 INFO L435 NwaCegarLoop]: 1121 mSDtfsCounter, 4867 mSDsluCounter, 2514 mSDsCounter, 0 mSdLazyCounter, 5463 mSolverCounterSat, 1815 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5003 SdHoareTripleChecker+Valid, 3635 SdHoareTripleChecker+Invalid, 7281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1815 IncrementalHoareTripleChecker+Valid, 5463 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2024-11-23 18:40:01,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5003 Valid, 3635 Invalid, 7281 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1815 Valid, 5463 Invalid, 3 Unknown, 0 Unchecked, 24.8s Time] [2024-11-23 18:40:01,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7148 states. [2024-11-23 18:40:01,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7148 to 6118. [2024-11-23 18:40:01,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6118 states, 4478 states have (on average 1.2932112550245645) internal successors, (5791), 4567 states have internal predecessors, (5791), 1197 states have call successors, (1197), 409 states have call predecessors, (1197), 442 states have return successors, (1289), 1196 states have call predecessors, (1289), 1196 states have call successors, (1289) [2024-11-23 18:40:01,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6118 states to 6118 states and 8277 transitions. [2024-11-23 18:40:01,693 INFO L78 Accepts]: Start accepts. Automaton has 6118 states and 8277 transitions. Word has length 158 [2024-11-23 18:40:01,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:40:01,694 INFO L471 AbstractCegarLoop]: Abstraction has 6118 states and 8277 transitions. [2024-11-23 18:40:01,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 6 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-23 18:40:01,694 INFO L276 IsEmpty]: Start isEmpty. Operand 6118 states and 8277 transitions. [2024-11-23 18:40:01,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-23 18:40:01,709 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:40:01,709 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 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] [2024-11-23 18:40:01,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 18:40:01,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:40:01,914 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:40:01,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:01,915 INFO L85 PathProgramCache]: Analyzing trace with hash -998226165, now seen corresponding path program 1 times [2024-11-23 18:40:01,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:01,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363870766] [2024-11-23 18:40:01,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:01,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:02,961 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-23 18:40:02,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:02,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363870766] [2024-11-23 18:40:02,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363870766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:02,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:02,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:40:02,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223802436] [2024-11-23 18:40:02,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:02,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:40:02,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:02,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:40:02,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:40:02,964 INFO L87 Difference]: Start difference. First operand 6118 states and 8277 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-23 18:40:03,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:40:03,433 INFO L93 Difference]: Finished difference Result 10560 states and 14343 transitions. [2024-11-23 18:40:03,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:40:03,434 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 160 [2024-11-23 18:40:03,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:40:03,490 INFO L225 Difference]: With dead ends: 10560 [2024-11-23 18:40:03,490 INFO L226 Difference]: Without dead ends: 6132 [2024-11-23 18:40:03,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:40:03,509 INFO L435 NwaCegarLoop]: 1298 mSDtfsCounter, 0 mSDsluCounter, 2590 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3888 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:40:03,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3888 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:40:03,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6132 states. [2024-11-23 18:40:04,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6132 to 6130. [2024-11-23 18:40:04,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6130 states, 4490 states have (on average 1.2937639198218263) internal successors, (5809), 4579 states have internal predecessors, (5809), 1197 states have call successors, (1197), 409 states have call predecessors, (1197), 442 states have return successors, (1289), 1196 states have call predecessors, (1289), 1196 states have call successors, (1289) [2024-11-23 18:40:04,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6130 states to 6130 states and 8295 transitions. [2024-11-23 18:40:04,104 INFO L78 Accepts]: Start accepts. Automaton has 6130 states and 8295 transitions. Word has length 160 [2024-11-23 18:40:04,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:40:04,105 INFO L471 AbstractCegarLoop]: Abstraction has 6130 states and 8295 transitions. [2024-11-23 18:40:04,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-23 18:40:04,105 INFO L276 IsEmpty]: Start isEmpty. Operand 6130 states and 8295 transitions. [2024-11-23 18:40:04,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-23 18:40:04,115 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:40:04,116 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 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] [2024-11-23 18:40:04,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 18:40:04,116 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:40:04,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:04,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1590768814, now seen corresponding path program 1 times [2024-11-23 18:40:04,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:04,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375751044] [2024-11-23 18:40:04,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:04,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:05,357 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-23 18:40:05,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:05,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375751044] [2024-11-23 18:40:05,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375751044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:05,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:05,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:40:05,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954421212] [2024-11-23 18:40:05,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:05,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:40:05,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:05,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:40:05,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:40:05,360 INFO L87 Difference]: Start difference. First operand 6130 states and 8295 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-23 18:40:05,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:40:05,983 INFO L93 Difference]: Finished difference Result 12264 states and 16650 transitions. [2024-11-23 18:40:05,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:40:05,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 161 [2024-11-23 18:40:05,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:40:06,034 INFO L225 Difference]: With dead ends: 12264 [2024-11-23 18:40:06,034 INFO L226 Difference]: Without dead ends: 6186 [2024-11-23 18:40:06,067 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:40:06,068 INFO L435 NwaCegarLoop]: 1300 mSDtfsCounter, 1 mSDsluCounter, 2584 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3884 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:40:06,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3884 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:40:06,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6186 states. [2024-11-23 18:40:06,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6186 to 6178. [2024-11-23 18:40:06,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6178 states, 4538 states have (on average 1.2906566769501984) internal successors, (5857), 4627 states have internal predecessors, (5857), 1197 states have call successors, (1197), 409 states have call predecessors, (1197), 442 states have return successors, (1289), 1196 states have call predecessors, (1289), 1196 states have call successors, (1289) [2024-11-23 18:40:06,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6178 states to 6178 states and 8343 transitions. [2024-11-23 18:40:06,720 INFO L78 Accepts]: Start accepts. Automaton has 6178 states and 8343 transitions. Word has length 161 [2024-11-23 18:40:06,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:40:06,721 INFO L471 AbstractCegarLoop]: Abstraction has 6178 states and 8343 transitions. [2024-11-23 18:40:06,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-23 18:40:06,721 INFO L276 IsEmpty]: Start isEmpty. Operand 6178 states and 8343 transitions. [2024-11-23 18:40:06,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-23 18:40:06,732 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:40:06,733 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 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] [2024-11-23 18:40:06,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 18:40:06,733 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:40:06,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:06,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1115915128, now seen corresponding path program 1 times [2024-11-23 18:40:06,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:06,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131428277] [2024-11-23 18:40:06,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:06,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:07,553 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-23 18:40:07,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:07,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131428277] [2024-11-23 18:40:07,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131428277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:07,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:07,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:40:07,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741757036] [2024-11-23 18:40:07,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:07,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:40:07,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:07,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:40:07,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:40:07,556 INFO L87 Difference]: Start difference. First operand 6178 states and 8343 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-23 18:40:07,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:40:07,981 INFO L93 Difference]: Finished difference Result 12360 states and 16746 transitions. [2024-11-23 18:40:07,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:40:07,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 162 [2024-11-23 18:40:07,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:40:08,019 INFO L225 Difference]: With dead ends: 12360 [2024-11-23 18:40:08,019 INFO L226 Difference]: Without dead ends: 6234 [2024-11-23 18:40:08,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:40:08,041 INFO L435 NwaCegarLoop]: 1304 mSDtfsCounter, 1 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3891 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:40:08,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3891 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:40:08,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6234 states. [2024-11-23 18:40:08,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6234 to 6178. [2024-11-23 18:40:08,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6178 states, 4538 states have (on average 1.2906566769501984) internal successors, (5857), 4627 states have internal predecessors, (5857), 1197 states have call successors, (1197), 409 states have call predecessors, (1197), 442 states have return successors, (1289), 1196 states have call predecessors, (1289), 1196 states have call successors, (1289) [2024-11-23 18:40:08,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6178 states to 6178 states and 8343 transitions. [2024-11-23 18:40:08,541 INFO L78 Accepts]: Start accepts. Automaton has 6178 states and 8343 transitions. Word has length 162 [2024-11-23 18:40:08,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:40:08,543 INFO L471 AbstractCegarLoop]: Abstraction has 6178 states and 8343 transitions. [2024-11-23 18:40:08,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-23 18:40:08,544 INFO L276 IsEmpty]: Start isEmpty. Operand 6178 states and 8343 transitions. [2024-11-23 18:40:08,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-23 18:40:08,556 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:40:08,556 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 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] [2024-11-23 18:40:08,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 18:40:08,556 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:40:08,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:08,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1548242219, now seen corresponding path program 1 times [2024-11-23 18:40:08,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:08,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323138989] [2024-11-23 18:40:08,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:08,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:09,805 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-23 18:40:09,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:09,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323138989] [2024-11-23 18:40:09,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323138989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:09,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:09,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:40:09,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792801524] [2024-11-23 18:40:09,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:09,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:40:09,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:09,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:40:09,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:40:09,808 INFO L87 Difference]: Start difference. First operand 6178 states and 8343 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-23 18:40:10,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:40:10,187 INFO L93 Difference]: Finished difference Result 12316 states and 16666 transitions. [2024-11-23 18:40:10,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:40:10,188 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 163 [2024-11-23 18:40:10,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:40:10,227 INFO L225 Difference]: With dead ends: 12316 [2024-11-23 18:40:10,227 INFO L226 Difference]: Without dead ends: 6190 [2024-11-23 18:40:10,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:40:10,247 INFO L435 NwaCegarLoop]: 1302 mSDtfsCounter, 0 mSDsluCounter, 2598 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3900 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:40:10,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3900 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:40:10,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6190 states. [2024-11-23 18:40:10,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6190 to 6190. [2024-11-23 18:40:10,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6190 states, 4550 states have (on average 1.2898901098901099) internal successors, (5869), 4639 states have internal predecessors, (5869), 1197 states have call successors, (1197), 409 states have call predecessors, (1197), 442 states have return successors, (1289), 1196 states have call predecessors, (1289), 1196 states have call successors, (1289) [2024-11-23 18:40:10,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6190 states to 6190 states and 8355 transitions. [2024-11-23 18:40:10,645 INFO L78 Accepts]: Start accepts. Automaton has 6190 states and 8355 transitions. Word has length 163 [2024-11-23 18:40:10,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:40:10,646 INFO L471 AbstractCegarLoop]: Abstraction has 6190 states and 8355 transitions. [2024-11-23 18:40:10,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-23 18:40:10,646 INFO L276 IsEmpty]: Start isEmpty. Operand 6190 states and 8355 transitions. [2024-11-23 18:40:10,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-23 18:40:10,657 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:40:10,658 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 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] [2024-11-23 18:40:10,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 18:40:10,658 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:40:10,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:10,659 INFO L85 PathProgramCache]: Analyzing trace with hash 2080299991, now seen corresponding path program 1 times [2024-11-23 18:40:10,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:10,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959417057] [2024-11-23 18:40:10,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:10,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:15,462 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-23 18:40:15,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:15,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959417057] [2024-11-23 18:40:15,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959417057] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:40:15,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823472514] [2024-11-23 18:40:15,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:15,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:40:15,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:40:15,467 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:40:15,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 18:40:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:17,147 INFO L256 TraceCheckSpWp]: Trace formula consists of 1791 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-23 18:40:17,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:40:17,587 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-23 18:40:17,587 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:40:19,666 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-23 18:40:19,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823472514] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:40:19,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:40:19,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 12] total 25 [2024-11-23 18:40:19,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907644170] [2024-11-23 18:40:19,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:40:19,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-23 18:40:19,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:19,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-23 18:40:19,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2024-11-23 18:40:19,669 INFO L87 Difference]: Start difference. First operand 6190 states and 8355 transitions. Second operand has 25 states, 23 states have (on average 7.782608695652174) internal successors, (179), 19 states have internal predecessors, (179), 7 states have call successors, (32), 2 states have call predecessors, (32), 7 states have return successors, (33), 9 states have call predecessors, (33), 7 states have call successors, (33) [2024-11-23 18:40:22,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:40:22,255 INFO L93 Difference]: Finished difference Result 12528 states and 16975 transitions. [2024-11-23 18:40:22,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 18:40:22,256 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 7.782608695652174) internal successors, (179), 19 states have internal predecessors, (179), 7 states have call successors, (32), 2 states have call predecessors, (32), 7 states have return successors, (33), 9 states have call predecessors, (33), 7 states have call successors, (33) Word has length 164 [2024-11-23 18:40:22,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:40:22,292 INFO L225 Difference]: With dead ends: 12528 [2024-11-23 18:40:22,293 INFO L226 Difference]: Without dead ends: 6390 [2024-11-23 18:40:22,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 321 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=127, Invalid=1355, Unknown=0, NotChecked=0, Total=1482 [2024-11-23 18:40:22,313 INFO L435 NwaCegarLoop]: 1305 mSDtfsCounter, 1271 mSDsluCounter, 23402 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1275 SdHoareTripleChecker+Valid, 24707 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:40:22,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1275 Valid, 24707 Invalid, 550 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-23 18:40:22,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6390 states. [2024-11-23 18:40:22,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6390 to 6248. [2024-11-23 18:40:22,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6248 states, 4600 states have (on average 1.285) internal successors, (5911), 4683 states have internal predecessors, (5911), 1197 states have call successors, (1197), 409 states have call predecessors, (1197), 450 states have return successors, (1309), 1210 states have call predecessors, (1309), 1196 states have call successors, (1309) [2024-11-23 18:40:22,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6248 states to 6248 states and 8417 transitions. [2024-11-23 18:40:22,736 INFO L78 Accepts]: Start accepts. Automaton has 6248 states and 8417 transitions. Word has length 164 [2024-11-23 18:40:22,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:40:22,736 INFO L471 AbstractCegarLoop]: Abstraction has 6248 states and 8417 transitions. [2024-11-23 18:40:22,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 7.782608695652174) internal successors, (179), 19 states have internal predecessors, (179), 7 states have call successors, (32), 2 states have call predecessors, (32), 7 states have return successors, (33), 9 states have call predecessors, (33), 7 states have call successors, (33) [2024-11-23 18:40:22,737 INFO L276 IsEmpty]: Start isEmpty. Operand 6248 states and 8417 transitions. [2024-11-23 18:40:22,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-23 18:40:22,747 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:40:22,747 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 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] [2024-11-23 18:40:22,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 18:40:22,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:40:22,948 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:40:22,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:22,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1135175747, now seen corresponding path program 1 times [2024-11-23 18:40:22,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:22,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871633282] [2024-11-23 18:40:22,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:22,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:23,894 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-23 18:40:23,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:23,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871633282] [2024-11-23 18:40:23,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871633282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:23,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:23,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:40:23,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21508377] [2024-11-23 18:40:23,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:23,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:40:23,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:23,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:40:23,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:40:23,896 INFO L87 Difference]: Start difference. First operand 6248 states and 8417 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-23 18:40:24,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:40:24,308 INFO L93 Difference]: Finished difference Result 12468 states and 16834 transitions. [2024-11-23 18:40:24,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:40:24,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 182 [2024-11-23 18:40:24,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:40:24,348 INFO L225 Difference]: With dead ends: 12468 [2024-11-23 18:40:24,349 INFO L226 Difference]: Without dead ends: 6256 [2024-11-23 18:40:24,369 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:40:24,369 INFO L435 NwaCegarLoop]: 1302 mSDtfsCounter, 0 mSDsluCounter, 2602 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3904 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 [2024-11-23 18:40:24,370 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3904 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:40:24,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6256 states. [2024-11-23 18:40:24,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6256 to 6256. [2024-11-23 18:40:24,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6256 states, 4608 states have (on average 1.2845052083333333) internal successors, (5919), 4691 states have internal predecessors, (5919), 1197 states have call successors, (1197), 409 states have call predecessors, (1197), 450 states have return successors, (1309), 1210 states have call predecessors, (1309), 1196 states have call successors, (1309) [2024-11-23 18:40:24,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6256 states to 6256 states and 8425 transitions. [2024-11-23 18:40:24,874 INFO L78 Accepts]: Start accepts. Automaton has 6256 states and 8425 transitions. Word has length 182 [2024-11-23 18:40:24,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:40:24,875 INFO L471 AbstractCegarLoop]: Abstraction has 6256 states and 8425 transitions. [2024-11-23 18:40:24,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-23 18:40:24,875 INFO L276 IsEmpty]: Start isEmpty. Operand 6256 states and 8425 transitions. [2024-11-23 18:40:24,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-23 18:40:24,885 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:40:24,886 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 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] [2024-11-23 18:40:24,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 18:40:24,886 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:40:24,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:24,887 INFO L85 PathProgramCache]: Analyzing trace with hash 971326224, now seen corresponding path program 1 times [2024-11-23 18:40:24,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:24,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213869745] [2024-11-23 18:40:24,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:24,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:26,055 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-23 18:40:26,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:26,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213869745] [2024-11-23 18:40:26,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213869745] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:40:26,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314538105] [2024-11-23 18:40:26,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:26,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:40:26,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:40:26,058 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:40:26,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 18:40:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:28,287 INFO L256 TraceCheckSpWp]: Trace formula consists of 1887 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 18:40:28,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:40:28,349 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-23 18:40:28,349 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:40:28,805 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-23 18:40:28,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314538105] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:40:28,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:40:28,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-23 18:40:28,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400751702] [2024-11-23 18:40:28,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:40:28,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 18:40:28,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:28,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 18:40:28,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:40:28,808 INFO L87 Difference]: Start difference. First operand 6256 states and 8425 transitions. Second operand has 9 states, 9 states have (on average 16.666666666666668) internal successors, (150), 9 states have internal predecessors, (150), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 18:40:29,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:40:29,229 INFO L93 Difference]: Finished difference Result 12516 states and 16904 transitions. [2024-11-23 18:40:29,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 18:40:29,229 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.666666666666668) internal successors, (150), 9 states have internal predecessors, (150), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 183 [2024-11-23 18:40:29,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:40:29,272 INFO L225 Difference]: With dead ends: 12516 [2024-11-23 18:40:29,272 INFO L226 Difference]: Without dead ends: 6280 [2024-11-23 18:40:29,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:40:29,296 INFO L435 NwaCegarLoop]: 1302 mSDtfsCounter, 0 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3906 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:40:29,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3906 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:40:29,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6280 states. [2024-11-23 18:40:29,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6280 to 6280. [2024-11-23 18:40:29,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6280 states, 4632 states have (on average 1.2830310880829014) internal successors, (5943), 4715 states have internal predecessors, (5943), 1197 states have call successors, (1197), 409 states have call predecessors, (1197), 450 states have return successors, (1309), 1210 states have call predecessors, (1309), 1196 states have call successors, (1309) [2024-11-23 18:40:29,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6280 states to 6280 states and 8449 transitions. [2024-11-23 18:40:29,718 INFO L78 Accepts]: Start accepts. Automaton has 6280 states and 8449 transitions. Word has length 183 [2024-11-23 18:40:29,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:40:29,719 INFO L471 AbstractCegarLoop]: Abstraction has 6280 states and 8449 transitions. [2024-11-23 18:40:29,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.666666666666668) internal successors, (150), 9 states have internal predecessors, (150), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 18:40:29,719 INFO L276 IsEmpty]: Start isEmpty. Operand 6280 states and 8449 transitions. [2024-11-23 18:40:29,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-23 18:40:29,728 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:40:29,729 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:29,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 18:40:29,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-23 18:40:29,930 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:40:29,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:29,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1179599002, now seen corresponding path program 1 times [2024-11-23 18:40:29,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:29,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741687336] [2024-11-23 18:40:29,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:29,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:30,430 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-23 18:40:30,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:30,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741687336] [2024-11-23 18:40:30,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741687336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:30,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:30,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:40:30,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445214535] [2024-11-23 18:40:30,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:30,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:40:30,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:30,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:40:30,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:40:30,433 INFO L87 Difference]: Start difference. First operand 6280 states and 8449 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-23 18:40:30,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:40:30,883 INFO L93 Difference]: Finished difference Result 12568 states and 16940 transitions. [2024-11-23 18:40:30,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:40:30,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 210 [2024-11-23 18:40:30,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:40:30,923 INFO L225 Difference]: With dead ends: 12568 [2024-11-23 18:40:30,923 INFO L226 Difference]: Without dead ends: 6340 [2024-11-23 18:40:30,940 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:40:30,941 INFO L435 NwaCegarLoop]: 1309 mSDtfsCounter, 3 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2610 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:40:30,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2610 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:40:30,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6340 states. [2024-11-23 18:40:31,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6340 to 6316. [2024-11-23 18:40:31,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6316 states, 4656 states have (on average 1.2828608247422681) internal successors, (5973), 4739 states have internal predecessors, (5973), 1209 states have call successors, (1209), 409 states have call predecessors, (1209), 450 states have return successors, (1321), 1222 states have call predecessors, (1321), 1208 states have call successors, (1321) [2024-11-23 18:40:31,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6316 states to 6316 states and 8503 transitions. [2024-11-23 18:40:31,370 INFO L78 Accepts]: Start accepts. Automaton has 6316 states and 8503 transitions. Word has length 210 [2024-11-23 18:40:31,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:40:31,371 INFO L471 AbstractCegarLoop]: Abstraction has 6316 states and 8503 transitions. [2024-11-23 18:40:31,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-23 18:40:31,371 INFO L276 IsEmpty]: Start isEmpty. Operand 6316 states and 8503 transitions. [2024-11-23 18:40:31,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-23 18:40:31,381 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:40:31,382 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:31,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 18:40:31,382 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:40:31,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:31,383 INFO L85 PathProgramCache]: Analyzing trace with hash -753044504, now seen corresponding path program 1 times [2024-11-23 18:40:31,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:31,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771347217] [2024-11-23 18:40:31,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:31,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:34,307 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 23 proven. 3 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-23 18:40:34,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:34,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771347217] [2024-11-23 18:40:34,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771347217] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:40:34,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060181113] [2024-11-23 18:40:34,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:34,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:40:34,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:40:34,310 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:40:34,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 18:40:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:35,825 INFO L256 TraceCheckSpWp]: Trace formula consists of 1954 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-11-23 18:40:35,830 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:40:36,272 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 23 proven. 3 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-23 18:40:36,273 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:40:37,721 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 23 proven. 3 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-23 18:40:37,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060181113] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:40:37,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:40:37,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 12] total 25 [2024-11-23 18:40:37,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813471539] [2024-11-23 18:40:37,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:40:37,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-23 18:40:37,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:37,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-23 18:40:37,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2024-11-23 18:40:37,727 INFO L87 Difference]: Start difference. First operand 6316 states and 8503 transitions. Second operand has 25 states, 22 states have (on average 7.136363636363637) internal successors, (157), 19 states have internal predecessors, (157), 7 states have call successors, (34), 2 states have call predecessors, (34), 7 states have return successors, (36), 8 states have call predecessors, (36), 7 states have call successors, (36) [2024-11-23 18:40:39,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:40:39,010 INFO L93 Difference]: Finished difference Result 12630 states and 17019 transitions. [2024-11-23 18:40:39,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 18:40:39,011 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 22 states have (on average 7.136363636363637) internal successors, (157), 19 states have internal predecessors, (157), 7 states have call successors, (34), 2 states have call predecessors, (34), 7 states have return successors, (36), 8 states have call predecessors, (36), 7 states have call successors, (36) Word has length 210 [2024-11-23 18:40:39,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:40:39,059 INFO L225 Difference]: With dead ends: 12630 [2024-11-23 18:40:39,059 INFO L226 Difference]: Without dead ends: 6366 [2024-11-23 18:40:39,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 406 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2024-11-23 18:40:39,079 INFO L435 NwaCegarLoop]: 1315 mSDtfsCounter, 12 mSDsluCounter, 22242 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 23557 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 18:40:39,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 23557 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 18:40:39,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6366 states. [2024-11-23 18:40:39,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6366 to 6325. [2024-11-23 18:40:39,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6325 states, 4665 states have (on average 1.282315112540193) internal successors, (5982), 4745 states have internal predecessors, (5982), 1209 states have call successors, (1209), 409 states have call predecessors, (1209), 450 states have return successors, (1321), 1225 states have call predecessors, (1321), 1208 states have call successors, (1321) [2024-11-23 18:40:39,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6325 states to 6325 states and 8512 transitions. [2024-11-23 18:40:39,513 INFO L78 Accepts]: Start accepts. Automaton has 6325 states and 8512 transitions. Word has length 210 [2024-11-23 18:40:39,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:40:39,513 INFO L471 AbstractCegarLoop]: Abstraction has 6325 states and 8512 transitions. [2024-11-23 18:40:39,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 22 states have (on average 7.136363636363637) internal successors, (157), 19 states have internal predecessors, (157), 7 states have call successors, (34), 2 states have call predecessors, (34), 7 states have return successors, (36), 8 states have call predecessors, (36), 7 states have call successors, (36) [2024-11-23 18:40:39,514 INFO L276 IsEmpty]: Start isEmpty. Operand 6325 states and 8512 transitions. [2024-11-23 18:40:39,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-23 18:40:39,524 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:40:39,524 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 3, 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] [2024-11-23 18:40:39,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 18:40:39,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-23 18:40:39,725 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:40:39,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:39,725 INFO L85 PathProgramCache]: Analyzing trace with hash -516934781, now seen corresponding path program 2 times [2024-11-23 18:40:39,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:39,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226883356] [2024-11-23 18:40:39,726 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 18:40:39,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:40,368 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 18:40:40,368 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 18:40:41,131 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-23 18:40:41,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:41,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226883356] [2024-11-23 18:40:41,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226883356] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:40:41,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102004689] [2024-11-23 18:40:41,131 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 18:40:41,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:40:41,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:40:41,134 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:40:41,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb63a471-2ec6-4434-8150-28329b801415/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process