./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/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_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB --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-d790fec [2024-11-28 03:18:08,916 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:18:09,027 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 03:18:09,047 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:18:09,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:18:09,094 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:18:09,096 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:18:09,096 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:18:09,097 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:18:09,097 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:18:09,098 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:18:09,099 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:18:09,099 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:18:09,099 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:18:09,099 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:18:09,099 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:18:09,100 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:18:09,100 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:18:09,100 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:18:09,100 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:18:09,100 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:18:09,101 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:18:09,101 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:18:09,101 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:18:09,101 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:18:09,101 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:18:09,101 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:18:09,102 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:18:09,102 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:18:09,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:18:09,102 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:18:09,102 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:18:09,102 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:18:09,102 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:18:09,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:18:09,103 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:18:09,103 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:18:09,103 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:18:09,103 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:18:09,103 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:18:09,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:18:09,103 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:18:09,104 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:18:09,104 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:18:09,104 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:18:09,104 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_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 [2024-11-28 03:18:09,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:18:09,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:18:09,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:18:09,476 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:18:09,477 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:18:09,478 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i [2024-11-28 03:18:12,880 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/data/355a8db53/c8a67ed5855b46d3a2936ea2d853abb6/FLAG2a52d0a60 [2024-11-28 03:18:13,775 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:18:13,775 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i [2024-11-28 03:18:13,835 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/data/355a8db53/c8a67ed5855b46d3a2936ea2d853abb6/FLAG2a52d0a60 [2024-11-28 03:18:13,858 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/data/355a8db53/c8a67ed5855b46d3a2936ea2d853abb6 [2024-11-28 03:18:13,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:18:13,865 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:18:13,867 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:18:13,867 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:18:13,876 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:18:13,877 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:13" (1/1) ... [2024-11-28 03:18:13,878 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70fc132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:13, skipping insertion in model container [2024-11-28 03:18:13,879 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:13" (1/1) ... [2024-11-28 03:18:14,022 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:18:15,269 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_aa74ddf0-e2e3-4006-8087-9b0992e8d662/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] [2024-11-28 03:18:15,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:18:15,912 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:18:16,083 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_aa74ddf0-e2e3-4006-8087-9b0992e8d662/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] [2024-11-28 03:18:16,193 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] [2024-11-28 03:18:16,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:18:16,416 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:18:16,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:16 WrapperNode [2024-11-28 03:18:16,417 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:18:16,418 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:18:16,418 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:18:16,418 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:18:16,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:16" (1/1) ... [2024-11-28 03:18:16,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:16" (1/1) ... [2024-11-28 03:18:16,632 INFO L138 Inliner]: procedures = 187, calls = 879, calls flagged for inlining = 75, calls inlined = 64, statements flattened = 2379 [2024-11-28 03:18:16,633 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:18:16,633 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:18:16,634 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:18:16,634 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:18:16,646 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:16" (1/1) ... [2024-11-28 03:18:16,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:16" (1/1) ... [2024-11-28 03:18:16,680 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:16" (1/1) ... [2024-11-28 03:18:17,160 INFO L175 MemorySlicer]: Split 387 memory accesses to 16 slices as follows [2, 6, 245, 2, 41, 5, 6, 2, 20, 16, 14, 6, 3, 2, 15, 2]. 63 percent of accesses are in the largest equivalence class. The 55 initializations are split as follows [2, 6, 2, 0, 0, 0, 6, 0, 15, 16, 0, 0, 0, 0, 8, 0]. The 172 writes are split as follows [0, 0, 107, 1, 41, 0, 0, 1, 2, 0, 12, 2, 3, 1, 0, 2]. [2024-11-28 03:18:17,167 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:16" (1/1) ... [2024-11-28 03:18:17,168 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:16" (1/1) ... [2024-11-28 03:18:17,266 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:16" (1/1) ... [2024-11-28 03:18:17,274 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:16" (1/1) ... [2024-11-28 03:18:17,301 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:16" (1/1) ... [2024-11-28 03:18:17,323 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:16" (1/1) ... [2024-11-28 03:18:17,339 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:16" (1/1) ... [2024-11-28 03:18:17,385 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:18:17,386 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:18:17,387 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:18:17,387 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:18:17,388 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:16" (1/1) ... [2024-11-28 03:18:17,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:18:17,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:17,438 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:18:17,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:18:17,488 INFO L130 BoogieDeclarations]: Found specification of procedure broadcast_write [2024-11-28 03:18:17,488 INFO L138 BoogieDeclarations]: Found implementation of procedure broadcast_write [2024-11-28 03:18:17,488 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-28 03:18:17,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-28 03:18:17,489 INFO L130 BoogieDeclarations]: Found specification of procedure genphy_config_aneg [2024-11-28 03:18:17,489 INFO L138 BoogieDeclarations]: Found implementation of procedure genphy_config_aneg [2024-11-28 03:18:17,489 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2024-11-28 03:18:17,490 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2024-11-28 03:18:17,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 03:18:17,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 03:18:17,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 03:18:17,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 03:18:17,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 03:18:17,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 03:18:17,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-28 03:18:17,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-28 03:18:17,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-28 03:18:17,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-28 03:18:17,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-28 03:18:17,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-28 03:18:17,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-28 03:18:17,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-28 03:18:17,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-11-28 03:18:17,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-11-28 03:18:17,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-28 03:18:17,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-28 03:18:17,493 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_clock_put [2024-11-28 03:18:17,494 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_clock_put [2024-11-28 03:18:17,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 03:18:17,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 03:18:17,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 03:18:17,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 03:18:17,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 03:18:17,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 03:18:17,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-28 03:18:17,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-28 03:18:17,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-28 03:18:17,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-28 03:18:17,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-28 03:18:17,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-28 03:18:17,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-28 03:18:17,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-28 03:18:17,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-11-28 03:18:17,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-11-28 03:18:17,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-28 03:18:17,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-28 03:18:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:18:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:18:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 03:18:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 03:18:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 03:18:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 03:18:17,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 03:18:17,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 03:18:17,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-28 03:18:17,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-28 03:18:17,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-28 03:18:17,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-28 03:18:17,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-28 03:18:17,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-28 03:18:17,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-28 03:18:17,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-28 03:18:17,501 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2024-11-28 03:18:17,501 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2024-11-28 03:18:17,503 INFO L130 BoogieDeclarations]: Found specification of procedure phy2txts [2024-11-28 03:18:17,503 INFO L138 BoogieDeclarations]: Found implementation of procedure phy2txts [2024-11-28 03:18:17,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2024-11-28 03:18:17,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2024-11-28 03:18:17,503 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_ts_info [2024-11-28 03:18:17,503 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_ts_info [2024-11-28 03:18:17,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-28 03:18:17,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-28 03:18:17,503 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2024-11-28 03:18:17,504 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2024-11-28 03:18:17,504 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_write [2024-11-28 03:18:17,504 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_write [2024-11-28 03:18:17,504 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_config_intr [2024-11-28 03:18:17,504 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_config_intr [2024-11-28 03:18:17,504 INFO L130 BoogieDeclarations]: Found specification of procedure tdr_write [2024-11-28 03:18:17,504 INFO L138 BoogieDeclarations]: Found implementation of procedure tdr_write [2024-11-28 03:18:17,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2024-11-28 03:18:17,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2024-11-28 03:18:17,504 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-28 03:18:17,505 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-28 03:18:17,505 INFO L130 BoogieDeclarations]: Found specification of procedure exts_chan_to_edata [2024-11-28 03:18:17,505 INFO L138 BoogieDeclarations]: Found implementation of procedure exts_chan_to_edata [2024-11-28 03:18:17,505 INFO L130 BoogieDeclarations]: Found specification of procedure skb_complete_tx_timestamp [2024-11-28 03:18:17,505 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_complete_tx_timestamp [2024-11-28 03:18:17,505 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2024-11-28 03:18:17,507 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2024-11-28 03:18:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2024-11-28 03:18:17,507 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2024-11-28 03:18:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:18:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:18:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 03:18:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 03:18:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 03:18:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 03:18:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 03:18:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 03:18:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-28 03:18:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-28 03:18:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-28 03:18:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-28 03:18:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-28 03:18:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-28 03:18:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-28 03:18:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-28 03:18:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-28 03:18:17,508 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-28 03:18:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-28 03:18:17,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-28 03:18:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_rxtstamp [2024-11-28 03:18:17,508 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_rxtstamp [2024-11-28 03:18:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2024-11-28 03:18:17,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2024-11-28 03:18:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-28 03:18:17,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-28 03:18:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2024-11-28 03:18:17,509 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2024-11-28 03:18:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 03:18:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 03:18:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 03:18:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-28 03:18:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-28 03:18:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-28 03:18:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-28 03:18:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-28 03:18:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-28 03:18:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-11-28 03:18:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-11-28 03:18:17,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2024-11-28 03:18:17,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2024-11-28 03:18:17,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#13 [2024-11-28 03:18:17,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#14 [2024-11-28 03:18:17,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#15 [2024-11-28 03:18:17,512 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 03:18:17,512 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 03:18:17,512 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 03:18:17,512 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-28 03:18:17,512 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-28 03:18:17,512 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-28 03:18:17,513 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-28 03:18:17,513 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-28 03:18:17,513 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-28 03:18:17,514 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-11-28 03:18:17,514 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-11-28 03:18:17,514 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2024-11-28 03:18:17,514 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2024-11-28 03:18:17,515 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#13 [2024-11-28 03:18:17,515 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#14 [2024-11-28 03:18:17,515 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#15 [2024-11-28 03:18:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:18:17,515 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:18:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:18:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure prune_rx_ts [2024-11-28 03:18:17,515 INFO L138 BoogieDeclarations]: Found implementation of procedure prune_rx_ts [2024-11-28 03:18:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-28 03:18:17,515 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-28 03:18:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2024-11-28 03:18:17,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2024-11-28 03:18:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:18:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_config_init [2024-11-28 03:18:17,515 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_config_init [2024-11-28 03:18:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:18:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 03:18:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 03:18:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 03:18:17,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 03:18:17,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 03:18:17,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 03:18:17,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 03:18:17,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-28 03:18:17,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-28 03:18:17,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-28 03:18:17,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-28 03:18:17,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-28 03:18:17,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-28 03:18:17,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-28 03:18:17,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-28 03:18:17,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-28 03:18:17,519 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-28 03:18:17,519 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-28 03:18:17,519 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_ktime [2024-11-28 03:18:17,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_ktime [2024-11-28 03:18:17,519 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2024-11-28 03:18:17,519 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2024-11-28 03:18:17,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 03:18:17,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 03:18:17,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 03:18:17,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 03:18:17,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 03:18:17,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 03:18:17,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 03:18:17,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-28 03:18:17,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-28 03:18:17,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-28 03:18:17,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-28 03:18:17,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-28 03:18:17,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-28 03:18:17,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-28 03:18:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-28 03:18:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-28 03:18:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2024-11-28 03:18:17,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2024-11-28 03:18:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2024-11-28 03:18:17,523 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2024-11-28 03:18:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-28 03:18:17,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-28 03:18:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-28 03:18:17,523 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-28 03:18:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure enable_status_frames [2024-11-28 03:18:17,523 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_status_frames [2024-11-28 03:18:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_hwtstamp [2024-11-28 03:18:17,523 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_hwtstamp [2024-11-28 03:18:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2024-11-28 03:18:17,523 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2024-11-28 03:18:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2024-11-28 03:18:17,523 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2024-11-28 03:18:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2024-11-28 03:18:17,523 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2024-11-28 03:18:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:18:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 03:18:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 03:18:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 03:18:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 03:18:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 03:18:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 03:18:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-28 03:18:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-28 03:18:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-28 03:18:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-28 03:18:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-28 03:18:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-28 03:18:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-28 03:18:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-28 03:18:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-28 03:18:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-28 03:18:17,526 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2024-11-28 03:18:17,526 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2024-11-28 03:18:17,527 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-28 03:18:17,527 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-28 03:18:17,527 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-28 03:18:17,527 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-28 03:18:17,527 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_clock_get [2024-11-28 03:18:17,527 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_clock_get [2024-11-28 03:18:17,527 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_ack_interrupt [2024-11-28 03:18:17,527 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_ack_interrupt [2024-11-28 03:18:17,527 INFO L130 BoogieDeclarations]: Found specification of procedure ext_read [2024-11-28 03:18:17,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ext_read [2024-11-28 03:18:17,527 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2024-11-28 03:18:17,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2024-11-28 03:18:17,527 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-28 03:18:17,527 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-28 03:18:17,527 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-11-28 03:18:17,528 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-11-28 03:18:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2024-11-28 03:18:17,528 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2024-11-28 03:18:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure skb_mac_header [2024-11-28 03:18:17,528 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_mac_header [2024-11-28 03:18:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_txtstamp [2024-11-28 03:18:17,528 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_txtstamp [2024-11-28 03:18:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:18:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:18:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 03:18:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 03:18:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 03:18:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 03:18:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 03:18:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 03:18:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-28 03:18:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-28 03:18:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-28 03:18:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-28 03:18:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-28 03:18:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-28 03:18:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-28 03:18:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-28 03:18:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure enable_broadcast [2024-11-28 03:18:17,529 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_broadcast [2024-11-28 03:18:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-28 03:18:17,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-28 03:18:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-28 03:18:17,529 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-28 03:18:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:18:17,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:18:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_timespec [2024-11-28 03:18:17,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_timespec [2024-11-28 03:18:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure ext_write [2024-11-28 03:18:17,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ext_write [2024-11-28 03:18:17,530 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-28 03:18:17,530 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-28 03:18:18,352 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:18:18,359 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:18:18,411 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-28 03:18:26,684 INFO L? ?]: Removed 987 outVars from TransFormulas that were not future-live. [2024-11-28 03:18:26,688 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:18:26,745 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:18:26,746 INFO L312 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-28 03:18:26,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:26 BoogieIcfgContainer [2024-11-28 03:18:26,747 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:18:26,749 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:18:26,749 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:18:26,755 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:18:26,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:18:13" (1/3) ... [2024-11-28 03:18:26,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197e60ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:26, skipping insertion in model container [2024-11-28 03:18:26,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:16" (2/3) ... [2024-11-28 03:18:26,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197e60ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:26, skipping insertion in model container [2024-11-28 03:18:26,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:26" (3/3) ... [2024-11-28 03:18:26,763 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 [2024-11-28 03:18:26,785 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:18:26,788 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. [2024-11-28 03:18:26,897 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:18:26,915 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;@2076d457, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:18:26,917 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:18:26,928 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) [2024-11-28 03:18:26,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 03:18:26,946 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:26,947 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] [2024-11-28 03:18:26,947 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:26,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:26,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1017676504, now seen corresponding path program 1 times [2024-11-28 03:18:26,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:26,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512118989] [2024-11-28 03:18:26,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:26,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:28,827 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:18:28,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:28,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512118989] [2024-11-28 03:18:28,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512118989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:28,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:28,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:18:28,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882280146] [2024-11-28 03:18:28,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:28,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:18:28,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:28,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:18:28,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:18:28,869 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) [2024-11-28 03:18:29,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:29,528 INFO L93 Difference]: Finished difference Result 2892 states and 4094 transitions. [2024-11-28 03:18:29,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:18:29,531 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 [2024-11-28 03:18:29,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:29,579 INFO L225 Difference]: With dead ends: 2892 [2024-11-28 03:18:29,579 INFO L226 Difference]: Without dead ends: 1875 [2024-11-28 03:18:29,598 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 [2024-11-28 03:18:29,604 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:29,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1302 Valid, 5277 Invalid, 47 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:29,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1875 states. [2024-11-28 03:18:29,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1875 to 1872. [2024-11-28 03:18:29,868 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) [2024-11-28 03:18:29,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1872 states to 1872 states and 2566 transitions. [2024-11-28 03:18:29,908 INFO L78 Accepts]: Start accepts. Automaton has 1872 states and 2566 transitions. Word has length 32 [2024-11-28 03:18:29,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:29,909 INFO L471 AbstractCegarLoop]: Abstraction has 1872 states and 2566 transitions. [2024-11-28 03:18:29,910 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) [2024-11-28 03:18:29,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1872 states and 2566 transitions. [2024-11-28 03:18:29,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 03:18:29,929 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:29,930 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] [2024-11-28 03:18:29,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:18:29,930 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:29,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:29,931 INFO L85 PathProgramCache]: Analyzing trace with hash 222573450, now seen corresponding path program 1 times [2024-11-28 03:18:29,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:29,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042174967] [2024-11-28 03:18:29,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:29,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:30,881 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:18:30,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:30,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042174967] [2024-11-28 03:18:30,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042174967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:30,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:30,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:30,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160069633] [2024-11-28 03:18:30,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:30,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:30,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:30,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:30,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:30,885 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) [2024-11-28 03:18:31,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:31,230 INFO L93 Difference]: Finished difference Result 3832 states and 5239 transitions. [2024-11-28 03:18:31,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:31,231 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 [2024-11-28 03:18:31,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:31,250 INFO L225 Difference]: With dead ends: 3832 [2024-11-28 03:18:31,251 INFO L226 Difference]: Without dead ends: 1968 [2024-11-28 03:18:31,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:31,262 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 [2024-11-28 03:18:31,263 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] [2024-11-28 03:18:31,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2024-11-28 03:18:31,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1959. [2024-11-28 03:18:31,375 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) [2024-11-28 03:18:31,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 2673 transitions. [2024-11-28 03:18:31,396 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 2673 transitions. Word has length 75 [2024-11-28 03:18:31,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:31,397 INFO L471 AbstractCegarLoop]: Abstraction has 1959 states and 2673 transitions. [2024-11-28 03:18:31,397 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) [2024-11-28 03:18:31,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 2673 transitions. [2024-11-28 03:18:31,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 03:18:31,404 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:31,404 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] [2024-11-28 03:18:31,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:18:31,404 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:31,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:31,405 INFO L85 PathProgramCache]: Analyzing trace with hash 471380771, now seen corresponding path program 1 times [2024-11-28 03:18:31,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:31,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401120550] [2024-11-28 03:18:31,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:31,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:32,272 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:18:32,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:32,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401120550] [2024-11-28 03:18:32,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401120550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:32,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:32,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:32,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41032275] [2024-11-28 03:18:32,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:32,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:32,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:32,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:32,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:32,274 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) [2024-11-28 03:18:36,304 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 [] [2024-11-28 03:18:36,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:36,789 INFO L93 Difference]: Finished difference Result 5383 states and 7323 transitions. [2024-11-28 03:18:36,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:36,790 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 [2024-11-28 03:18:36,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:36,821 INFO L225 Difference]: With dead ends: 5383 [2024-11-28 03:18:36,821 INFO L226 Difference]: Without dead ends: 3453 [2024-11-28 03:18:36,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:36,834 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 [2024-11-28 03:18:36,836 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] [2024-11-28 03:18:36,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3453 states. [2024-11-28 03:18:37,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3453 to 3444. [2024-11-28 03:18:37,055 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) [2024-11-28 03:18:37,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3444 states to 3444 states and 4634 transitions. [2024-11-28 03:18:37,092 INFO L78 Accepts]: Start accepts. Automaton has 3444 states and 4634 transitions. Word has length 99 [2024-11-28 03:18:37,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:37,094 INFO L471 AbstractCegarLoop]: Abstraction has 3444 states and 4634 transitions. [2024-11-28 03:18:37,095 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) [2024-11-28 03:18:37,095 INFO L276 IsEmpty]: Start isEmpty. Operand 3444 states and 4634 transitions. [2024-11-28 03:18:37,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 03:18:37,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:37,107 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] [2024-11-28 03:18:37,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:18:37,108 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:37,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:37,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1240789473, now seen corresponding path program 1 times [2024-11-28 03:18:37,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:37,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604551779] [2024-11-28 03:18:37,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:37,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:37,854 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-28 03:18:37,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:37,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604551779] [2024-11-28 03:18:37,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604551779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:37,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:37,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:37,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760080295] [2024-11-28 03:18:37,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:37,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:37,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:37,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:37,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:37,857 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) [2024-11-28 03:18:38,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:38,014 INFO L93 Difference]: Finished difference Result 5199 states and 7008 transitions. [2024-11-28 03:18:38,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:38,014 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 [2024-11-28 03:18:38,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:38,044 INFO L225 Difference]: With dead ends: 5199 [2024-11-28 03:18:38,044 INFO L226 Difference]: Without dead ends: 3448 [2024-11-28 03:18:38,052 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:38,054 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 [2024-11-28 03:18:38,056 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] [2024-11-28 03:18:38,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3448 states. [2024-11-28 03:18:38,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3448 to 3448. [2024-11-28 03:18:38,234 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) [2024-11-28 03:18:38,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 4638 transitions. [2024-11-28 03:18:38,259 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 4638 transitions. Word has length 99 [2024-11-28 03:18:38,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:38,260 INFO L471 AbstractCegarLoop]: Abstraction has 3448 states and 4638 transitions. [2024-11-28 03:18:38,260 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) [2024-11-28 03:18:38,261 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 4638 transitions. [2024-11-28 03:18:38,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 03:18:38,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:38,269 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] [2024-11-28 03:18:38,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:18:38,271 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:38,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:38,272 INFO L85 PathProgramCache]: Analyzing trace with hash -966997310, now seen corresponding path program 1 times [2024-11-28 03:18:38,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:38,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997917900] [2024-11-28 03:18:38,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:38,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:39,874 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-28 03:18:39,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:39,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997917900] [2024-11-28 03:18:39,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997917900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:39,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:39,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:18:39,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191068451] [2024-11-28 03:18:39,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:39,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:18:39,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:39,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:18:39,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:18:39,878 INFO L87 Difference]: Start difference. First operand 3448 states and 4638 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 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) [2024-11-28 03:18:43,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:18:47,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:18:51,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:18:55,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:19:10,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:10,502 INFO L93 Difference]: Finished difference Result 7669 states and 10365 transitions. [2024-11-28 03:19:10,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:19:10,503 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 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 [2024-11-28 03:19:10,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:10,535 INFO L225 Difference]: With dead ends: 7669 [2024-11-28 03:19:10,535 INFO L226 Difference]: Without dead ends: 4250 [2024-11-28 03:19:10,549 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:19:10,550 INFO L435 NwaCegarLoop]: 644 mSDtfsCounter, 4029 mSDsluCounter, 2401 mSDsCounter, 0 mSdLazyCounter, 5368 mSolverCounterSat, 1448 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4265 SdHoareTripleChecker+Valid, 3045 SdHoareTripleChecker+Invalid, 6820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1448 IncrementalHoareTripleChecker+Valid, 5368 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:10,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4265 Valid, 3045 Invalid, 6820 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1448 Valid, 5368 Invalid, 4 Unknown, 0 Unchecked, 29.9s Time] [2024-11-28 03:19:10,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4250 states. [2024-11-28 03:19:10,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4250 to 4198. [2024-11-28 03:19:10,785 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) [2024-11-28 03:19:10,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4198 states to 4198 states and 5665 transitions. [2024-11-28 03:19:10,812 INFO L78 Accepts]: Start accepts. Automaton has 4198 states and 5665 transitions. Word has length 101 [2024-11-28 03:19:10,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:10,816 INFO L471 AbstractCegarLoop]: Abstraction has 4198 states and 5665 transitions. [2024-11-28 03:19:10,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 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) [2024-11-28 03:19:10,817 INFO L276 IsEmpty]: Start isEmpty. Operand 4198 states and 5665 transitions. [2024-11-28 03:19:10,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 03:19:10,829 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:10,830 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] [2024-11-28 03:19:10,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:19:10,830 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:19:10,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:10,831 INFO L85 PathProgramCache]: Analyzing trace with hash -836088135, now seen corresponding path program 1 times [2024-11-28 03:19:10,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:10,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108952719] [2024-11-28 03:19:10,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:10,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:12,216 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-28 03:19:12,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:12,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108952719] [2024-11-28 03:19:12,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108952719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:12,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:12,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:19:12,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855083748] [2024-11-28 03:19:12,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:12,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:19:12,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:12,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:19:12,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:19:12,219 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) [2024-11-28 03:19:12,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:12,426 INFO L93 Difference]: Finished difference Result 8393 states and 11379 transitions. [2024-11-28 03:19:12,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:19:12,427 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 [2024-11-28 03:19:12,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:12,458 INFO L225 Difference]: With dead ends: 8393 [2024-11-28 03:19:12,458 INFO L226 Difference]: Without dead ends: 4224 [2024-11-28 03:19:12,477 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 [2024-11-28 03:19:12,478 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 [2024-11-28 03:19:12,479 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] [2024-11-28 03:19:12,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4224 states. [2024-11-28 03:19:12,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4224 to 4222. [2024-11-28 03:19:12,698 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) [2024-11-28 03:19:12,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4222 states to 4222 states and 5693 transitions. [2024-11-28 03:19:12,725 INFO L78 Accepts]: Start accepts. Automaton has 4222 states and 5693 transitions. Word has length 129 [2024-11-28 03:19:12,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:12,726 INFO L471 AbstractCegarLoop]: Abstraction has 4222 states and 5693 transitions. [2024-11-28 03:19:12,726 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) [2024-11-28 03:19:12,727 INFO L276 IsEmpty]: Start isEmpty. Operand 4222 states and 5693 transitions. [2024-11-28 03:19:12,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 03:19:12,736 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:12,736 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] [2024-11-28 03:19:12,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:19:12,737 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:19:12,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:12,737 INFO L85 PathProgramCache]: Analyzing trace with hash -473456997, now seen corresponding path program 1 times [2024-11-28 03:19:12,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:12,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275621269] [2024-11-28 03:19:12,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:12,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:13,727 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-28 03:19:13,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:13,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275621269] [2024-11-28 03:19:13,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275621269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:13,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:13,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:19:13,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476309141] [2024-11-28 03:19:13,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:13,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:19:13,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:13,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:19:13,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:19:13,731 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) [2024-11-28 03:19:17,754 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 [] [2024-11-28 03:19:18,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:18,039 INFO L93 Difference]: Finished difference Result 8404 states and 11337 transitions. [2024-11-28 03:19:18,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:19:18,039 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 [2024-11-28 03:19:18,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:18,070 INFO L225 Difference]: With dead ends: 8404 [2024-11-28 03:19:18,071 INFO L226 Difference]: Without dead ends: 4198 [2024-11-28 03:19:18,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:19:18,086 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 [2024-11-28 03:19:18,086 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] [2024-11-28 03:19:18,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4198 states. [2024-11-28 03:19:18,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4198 to 4198. [2024-11-28 03:19:18,297 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) [2024-11-28 03:19:18,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4198 states to 4198 states and 5646 transitions. [2024-11-28 03:19:18,322 INFO L78 Accepts]: Start accepts. Automaton has 4198 states and 5646 transitions. Word has length 150 [2024-11-28 03:19:18,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:18,323 INFO L471 AbstractCegarLoop]: Abstraction has 4198 states and 5646 transitions. [2024-11-28 03:19:18,323 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) [2024-11-28 03:19:18,324 INFO L276 IsEmpty]: Start isEmpty. Operand 4198 states and 5646 transitions. [2024-11-28 03:19:18,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-28 03:19:18,336 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:18,336 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] [2024-11-28 03:19:18,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:19:18,336 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:19:18,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:18,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1030792918, now seen corresponding path program 1 times [2024-11-28 03:19:18,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:18,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437700649] [2024-11-28 03:19:18,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:18,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:20,057 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-28 03:19:20,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:20,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437700649] [2024-11-28 03:19:20,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437700649] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:20,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43992120] [2024-11-28 03:19:20,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:20,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:20,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:20,064 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:20,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:19:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:21,656 INFO L256 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:19:21,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:22,610 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 24 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 03:19:22,611 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:19:24,428 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-28 03:19:24,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43992120] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:24,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:19:24,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 8] total 21 [2024-11-28 03:19:24,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319582397] [2024-11-28 03:19:24,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:24,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:19:24,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:24,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:19:24,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:19:24,435 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) [2024-11-28 03:19:28,460 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 [] [2024-11-28 03:19:32,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:19:36,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:19:48,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:48,511 INFO L93 Difference]: Finished difference Result 9656 states and 13260 transitions. [2024-11-28 03:19:48,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:19:48,511 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 [2024-11-28 03:19:48,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:48,554 INFO L225 Difference]: With dead ends: 9656 [2024-11-28 03:19:48,554 INFO L226 Difference]: Without dead ends: 7148 [2024-11-28 03:19:48,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 309 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=198, Invalid=614, Unknown=0, NotChecked=0, Total=812 [2024-11-28 03:19:48,565 INFO L435 NwaCegarLoop]: 1123 mSDtfsCounter, 4632 mSDsluCounter, 2748 mSDsCounter, 0 mSdLazyCounter, 5537 mSolverCounterSat, 1904 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4769 SdHoareTripleChecker+Valid, 3871 SdHoareTripleChecker+Invalid, 7444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1904 IncrementalHoareTripleChecker+Valid, 5537 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:48,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4769 Valid, 3871 Invalid, 7444 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1904 Valid, 5537 Invalid, 3 Unknown, 0 Unchecked, 23.2s Time] [2024-11-28 03:19:48,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7148 states. [2024-11-28 03:19:48,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7148 to 6118. [2024-11-28 03:19:48,998 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) [2024-11-28 03:19:49,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6118 states to 6118 states and 8277 transitions. [2024-11-28 03:19:49,100 INFO L78 Accepts]: Start accepts. Automaton has 6118 states and 8277 transitions. Word has length 158 [2024-11-28 03:19:49,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:49,101 INFO L471 AbstractCegarLoop]: Abstraction has 6118 states and 8277 transitions. [2024-11-28 03:19:49,102 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) [2024-11-28 03:19:49,102 INFO L276 IsEmpty]: Start isEmpty. Operand 6118 states and 8277 transitions. [2024-11-28 03:19:49,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-28 03:19:49,127 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:49,128 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] [2024-11-28 03:19:49,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:19:49,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:49,330 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:19:49,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:49,330 INFO L85 PathProgramCache]: Analyzing trace with hash -998226165, now seen corresponding path program 1 times [2024-11-28 03:19:49,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:49,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346609902] [2024-11-28 03:19:49,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:49,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:49,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:50,228 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-28 03:19:50,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:50,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346609902] [2024-11-28 03:19:50,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346609902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:50,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:50,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:19:50,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937746067] [2024-11-28 03:19:50,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:50,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:19:50,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:50,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:19:50,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:19:50,231 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) [2024-11-28 03:19:50,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:50,645 INFO L93 Difference]: Finished difference Result 10560 states and 14343 transitions. [2024-11-28 03:19:50,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:19:50,646 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 [2024-11-28 03:19:50,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:50,698 INFO L225 Difference]: With dead ends: 10560 [2024-11-28 03:19:50,699 INFO L226 Difference]: Without dead ends: 6132 [2024-11-28 03:19:50,713 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:19:50,714 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 [2024-11-28 03:19:50,715 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] [2024-11-28 03:19:50,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6132 states. [2024-11-28 03:19:51,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6132 to 6130. [2024-11-28 03:19:51,110 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) [2024-11-28 03:19:51,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6130 states to 6130 states and 8295 transitions. [2024-11-28 03:19:51,147 INFO L78 Accepts]: Start accepts. Automaton has 6130 states and 8295 transitions. Word has length 160 [2024-11-28 03:19:51,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:51,147 INFO L471 AbstractCegarLoop]: Abstraction has 6130 states and 8295 transitions. [2024-11-28 03:19:51,148 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) [2024-11-28 03:19:51,148 INFO L276 IsEmpty]: Start isEmpty. Operand 6130 states and 8295 transitions. [2024-11-28 03:19:51,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-28 03:19:51,162 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:51,163 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] [2024-11-28 03:19:51,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:19:51,163 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:19:51,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:51,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1590768814, now seen corresponding path program 1 times [2024-11-28 03:19:51,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:51,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827240003] [2024-11-28 03:19:51,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:51,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:51,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:52,349 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-28 03:19:52,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:52,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827240003] [2024-11-28 03:19:52,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827240003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:52,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:52,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:19:52,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807741754] [2024-11-28 03:19:52,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:52,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:19:52,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:52,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:19:52,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:19:52,352 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) [2024-11-28 03:19:52,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:52,928 INFO L93 Difference]: Finished difference Result 12264 states and 16650 transitions. [2024-11-28 03:19:52,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:19:52,929 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 [2024-11-28 03:19:52,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:52,975 INFO L225 Difference]: With dead ends: 12264 [2024-11-28 03:19:52,975 INFO L226 Difference]: Without dead ends: 6186 [2024-11-28 03:19:52,998 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:19:52,998 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 [2024-11-28 03:19:52,999 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] [2024-11-28 03:19:53,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6186 states. [2024-11-28 03:19:53,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6186 to 6178. [2024-11-28 03:19:53,404 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) [2024-11-28 03:19:53,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6178 states to 6178 states and 8343 transitions. [2024-11-28 03:19:53,436 INFO L78 Accepts]: Start accepts. Automaton has 6178 states and 8343 transitions. Word has length 161 [2024-11-28 03:19:53,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:53,437 INFO L471 AbstractCegarLoop]: Abstraction has 6178 states and 8343 transitions. [2024-11-28 03:19:53,437 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) [2024-11-28 03:19:53,438 INFO L276 IsEmpty]: Start isEmpty. Operand 6178 states and 8343 transitions. [2024-11-28 03:19:53,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 03:19:53,449 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:53,449 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] [2024-11-28 03:19:53,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:19:53,449 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:19:53,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:53,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1115915128, now seen corresponding path program 1 times [2024-11-28 03:19:53,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:53,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019305952] [2024-11-28 03:19:53,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:53,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:54,275 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-28 03:19:54,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:54,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019305952] [2024-11-28 03:19:54,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019305952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:54,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:54,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:19:54,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334665802] [2024-11-28 03:19:54,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:54,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:19:54,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:54,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:19:54,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:19:54,277 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) [2024-11-28 03:19:54,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:54,636 INFO L93 Difference]: Finished difference Result 12360 states and 16746 transitions. [2024-11-28 03:19:54,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:19:54,637 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 [2024-11-28 03:19:54,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:54,671 INFO L225 Difference]: With dead ends: 12360 [2024-11-28 03:19:54,671 INFO L226 Difference]: Without dead ends: 6234 [2024-11-28 03:19:54,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:19:54,689 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 [2024-11-28 03:19:54,689 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] [2024-11-28 03:19:54,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6234 states. [2024-11-28 03:19:55,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6234 to 6178. [2024-11-28 03:19:55,086 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) [2024-11-28 03:19:55,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6178 states to 6178 states and 8343 transitions. [2024-11-28 03:19:55,113 INFO L78 Accepts]: Start accepts. Automaton has 6178 states and 8343 transitions. Word has length 162 [2024-11-28 03:19:55,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:55,115 INFO L471 AbstractCegarLoop]: Abstraction has 6178 states and 8343 transitions. [2024-11-28 03:19:55,115 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) [2024-11-28 03:19:55,116 INFO L276 IsEmpty]: Start isEmpty. Operand 6178 states and 8343 transitions. [2024-11-28 03:19:55,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-28 03:19:55,125 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:55,125 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] [2024-11-28 03:19:55,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:19:55,125 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:19:55,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:55,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1548242219, now seen corresponding path program 1 times [2024-11-28 03:19:55,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:55,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089048106] [2024-11-28 03:19:55,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:55,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:56,195 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:19:56,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:56,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089048106] [2024-11-28 03:19:56,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089048106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:56,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:56,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:19:56,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620565538] [2024-11-28 03:19:56,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:56,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:19:56,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:56,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:19:56,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:19:56,198 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) [2024-11-28 03:19:56,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:56,573 INFO L93 Difference]: Finished difference Result 12316 states and 16666 transitions. [2024-11-28 03:19:56,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:19:56,574 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 [2024-11-28 03:19:56,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:56,610 INFO L225 Difference]: With dead ends: 12316 [2024-11-28 03:19:56,611 INFO L226 Difference]: Without dead ends: 6190 [2024-11-28 03:19:56,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:19:56,630 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 [2024-11-28 03:19:56,630 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] [2024-11-28 03:19:56,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6190 states. [2024-11-28 03:19:57,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6190 to 6190. [2024-11-28 03:19:57,107 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) [2024-11-28 03:19:57,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6190 states to 6190 states and 8355 transitions. [2024-11-28 03:19:57,148 INFO L78 Accepts]: Start accepts. Automaton has 6190 states and 8355 transitions. Word has length 163 [2024-11-28 03:19:57,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:57,149 INFO L471 AbstractCegarLoop]: Abstraction has 6190 states and 8355 transitions. [2024-11-28 03:19:57,149 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) [2024-11-28 03:19:57,149 INFO L276 IsEmpty]: Start isEmpty. Operand 6190 states and 8355 transitions. [2024-11-28 03:19:57,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-28 03:19:57,162 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:57,162 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] [2024-11-28 03:19:57,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:19:57,163 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:19:57,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:57,164 INFO L85 PathProgramCache]: Analyzing trace with hash 2080299991, now seen corresponding path program 1 times [2024-11-28 03:19:57,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:57,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558652365] [2024-11-28 03:19:57,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:57,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:58,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:00,513 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 03:20:00,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:00,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558652365] [2024-11-28 03:20:00,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558652365] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:00,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927413991] [2024-11-28 03:20:00,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:00,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:00,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:00,516 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:00,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:20:01,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:01,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 1791 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-28 03:20:01,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:02,353 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 03:20:02,356 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:04,366 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 03:20:04,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927413991] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:20:04,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:20:04,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 12] total 24 [2024-11-28 03:20:04,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327927338] [2024-11-28 03:20:04,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:04,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 03:20:04,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:04,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 03:20:04,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:20:04,370 INFO L87 Difference]: Start difference. First operand 6190 states and 8355 transitions. Second operand has 24 states, 22 states have (on average 6.7727272727272725) internal successors, (149), 18 states have internal predecessors, (149), 6 states have call successors, (27), 2 states have call predecessors, (27), 7 states have return successors, (28), 8 states have call predecessors, (28), 6 states have call successors, (28) [2024-11-28 03:20:05,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:05,653 INFO L93 Difference]: Finished difference Result 12528 states and 16975 transitions. [2024-11-28 03:20:05,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:20:05,654 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 6.7727272727272725) internal successors, (149), 18 states have internal predecessors, (149), 6 states have call successors, (27), 2 states have call predecessors, (27), 7 states have return successors, (28), 8 states have call predecessors, (28), 6 states have call successors, (28) Word has length 164 [2024-11-28 03:20:05,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:05,692 INFO L225 Difference]: With dead ends: 12528 [2024-11-28 03:20:05,692 INFO L226 Difference]: Without dead ends: 6390 [2024-11-28 03:20:05,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 319 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:20:05,714 INFO L435 NwaCegarLoop]: 1316 mSDtfsCounter, 21 mSDsluCounter, 26217 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 27533 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:05,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 27533 Invalid, 369 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:20:05,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6390 states. [2024-11-28 03:20:06,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6390 to 6248. [2024-11-28 03:20:06,104 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) [2024-11-28 03:20:06,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6248 states to 6248 states and 8417 transitions. [2024-11-28 03:20:06,137 INFO L78 Accepts]: Start accepts. Automaton has 6248 states and 8417 transitions. Word has length 164 [2024-11-28 03:20:06,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:06,138 INFO L471 AbstractCegarLoop]: Abstraction has 6248 states and 8417 transitions. [2024-11-28 03:20:06,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 6.7727272727272725) internal successors, (149), 18 states have internal predecessors, (149), 6 states have call successors, (27), 2 states have call predecessors, (27), 7 states have return successors, (28), 8 states have call predecessors, (28), 6 states have call successors, (28) [2024-11-28 03:20:06,138 INFO L276 IsEmpty]: Start isEmpty. Operand 6248 states and 8417 transitions. [2024-11-28 03:20:06,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-28 03:20:06,149 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:06,149 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] [2024-11-28 03:20:06,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:20:06,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:06,354 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:20:06,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:06,355 INFO L85 PathProgramCache]: Analyzing trace with hash 425275180, now seen corresponding path program 1 times [2024-11-28 03:20:06,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:06,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013917505] [2024-11-28 03:20:06,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:06,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:07,344 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-28 03:20:07,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:07,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013917505] [2024-11-28 03:20:07,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013917505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:07,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:07,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:20:07,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271067440] [2024-11-28 03:20:07,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:07,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:20:07,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:07,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:20:07,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:20:07,345 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) [2024-11-28 03:20:07,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:07,692 INFO L93 Difference]: Finished difference Result 12468 states and 16834 transitions. [2024-11-28 03:20:07,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:20:07,692 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 [2024-11-28 03:20:07,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:07,731 INFO L225 Difference]: With dead ends: 12468 [2024-11-28 03:20:07,731 INFO L226 Difference]: Without dead ends: 6256 [2024-11-28 03:20:07,750 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:20:07,750 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 [2024-11-28 03:20:07,751 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] [2024-11-28 03:20:07,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6256 states. [2024-11-28 03:20:08,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6256 to 6256. [2024-11-28 03:20:08,171 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) [2024-11-28 03:20:08,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6256 states to 6256 states and 8425 transitions. [2024-11-28 03:20:08,203 INFO L78 Accepts]: Start accepts. Automaton has 6256 states and 8425 transitions. Word has length 182 [2024-11-28 03:20:08,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:08,203 INFO L471 AbstractCegarLoop]: Abstraction has 6256 states and 8425 transitions. [2024-11-28 03:20:08,204 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) [2024-11-28 03:20:08,204 INFO L276 IsEmpty]: Start isEmpty. Operand 6256 states and 8425 transitions. [2024-11-28 03:20:08,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-28 03:20:08,214 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:08,214 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] [2024-11-28 03:20:08,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:20:08,215 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:20:08,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:08,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1814921904, now seen corresponding path program 1 times [2024-11-28 03:20:08,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:08,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878448904] [2024-11-28 03:20:08,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:08,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:09,235 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-28 03:20:09,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:09,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878448904] [2024-11-28 03:20:09,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878448904] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:09,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331441302] [2024-11-28 03:20:09,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:09,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:09,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:09,241 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:09,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:20:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:13,038 INFO L256 TraceCheckSpWp]: Trace formula consists of 1887 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:20:13,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:13,133 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-28 03:20:13,133 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:13,630 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-28 03:20:13,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1331441302] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:20:13,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:20:13,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-28 03:20:13,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568424868] [2024-11-28 03:20:13,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:13,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:20:13,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:13,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:20:13,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:20:13,634 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) [2024-11-28 03:20:14,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:14,230 INFO L93 Difference]: Finished difference Result 12516 states and 16904 transitions. [2024-11-28 03:20:14,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:20:14,231 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 [2024-11-28 03:20:14,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:14,268 INFO L225 Difference]: With dead ends: 12516 [2024-11-28 03:20:14,268 INFO L226 Difference]: Without dead ends: 6280 [2024-11-28 03:20:14,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:20:14,289 INFO L435 NwaCegarLoop]: 1302 mSDtfsCounter, 0 mSDsluCounter, 5204 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6506 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:14,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6506 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:20:14,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6280 states. [2024-11-28 03:20:14,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6280 to 6280. [2024-11-28 03:20:14,624 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) [2024-11-28 03:20:14,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6280 states to 6280 states and 8449 transitions. [2024-11-28 03:20:14,658 INFO L78 Accepts]: Start accepts. Automaton has 6280 states and 8449 transitions. Word has length 183 [2024-11-28 03:20:14,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:14,659 INFO L471 AbstractCegarLoop]: Abstraction has 6280 states and 8449 transitions. [2024-11-28 03:20:14,659 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) [2024-11-28 03:20:14,659 INFO L276 IsEmpty]: Start isEmpty. Operand 6280 states and 8449 transitions. [2024-11-28 03:20:14,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-28 03:20:14,670 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:14,671 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] [2024-11-28 03:20:14,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:20:14,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:14,872 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:20:14,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:14,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1179599002, now seen corresponding path program 1 times [2024-11-28 03:20:14,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:14,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248223923] [2024-11-28 03:20:14,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:14,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:15,495 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-28 03:20:15,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:15,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248223923] [2024-11-28 03:20:15,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248223923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:15,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:15,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:20:15,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939134551] [2024-11-28 03:20:15,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:15,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:20:15,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:15,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:20:15,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:20:15,499 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) [2024-11-28 03:20:15,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:15,818 INFO L93 Difference]: Finished difference Result 12568 states and 16940 transitions. [2024-11-28 03:20:15,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:20:15,819 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 [2024-11-28 03:20:15,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:15,860 INFO L225 Difference]: With dead ends: 12568 [2024-11-28 03:20:15,860 INFO L226 Difference]: Without dead ends: 6340 [2024-11-28 03:20:15,878 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:20:15,879 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 [2024-11-28 03:20:15,879 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] [2024-11-28 03:20:15,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6340 states. [2024-11-28 03:20:16,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6340 to 6316. [2024-11-28 03:20:16,206 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) [2024-11-28 03:20:16,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6316 states to 6316 states and 8503 transitions. [2024-11-28 03:20:16,245 INFO L78 Accepts]: Start accepts. Automaton has 6316 states and 8503 transitions. Word has length 210 [2024-11-28 03:20:16,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:16,246 INFO L471 AbstractCegarLoop]: Abstraction has 6316 states and 8503 transitions. [2024-11-28 03:20:16,246 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) [2024-11-28 03:20:16,247 INFO L276 IsEmpty]: Start isEmpty. Operand 6316 states and 8503 transitions. [2024-11-28 03:20:16,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-28 03:20:16,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:16,257 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] [2024-11-28 03:20:16,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:20:16,257 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:20:16,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:16,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1815702746, now seen corresponding path program 1 times [2024-11-28 03:20:16,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:16,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711115027] [2024-11-28 03:20:16,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:16,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:16,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:17,127 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-28 03:20:17,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:17,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711115027] [2024-11-28 03:20:17,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711115027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:17,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:17,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:20:17,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643474138] [2024-11-28 03:20:17,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:17,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:20:17,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:17,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:20:17,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:20:17,131 INFO L87 Difference]: Start difference. First operand 6316 states and 8503 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 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) [2024-11-28 03:20:17,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:17,633 INFO L93 Difference]: Finished difference Result 12646 states and 17033 transitions. [2024-11-28 03:20:17,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:20:17,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 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 [2024-11-28 03:20:17,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:17,679 INFO L225 Difference]: With dead ends: 12646 [2024-11-28 03:20:17,679 INFO L226 Difference]: Without dead ends: 6382 [2024-11-28 03:20:17,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:20:17,699 INFO L435 NwaCegarLoop]: 1311 mSDtfsCounter, 23 mSDsluCounter, 2584 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 3895 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:17,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 3895 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:20:17,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6382 states. [2024-11-28 03:20:18,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6382 to 6364. [2024-11-28 03:20:18,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6364 states, 4689 states have (on average 1.2834293026231607) internal successors, (6018), 4772 states have internal predecessors, (6018), 1221 states have call successors, (1221), 412 states have call predecessors, (1221), 453 states have return successors, (1333), 1234 states have call predecessors, (1333), 1220 states have call successors, (1333) [2024-11-28 03:20:18,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6364 states to 6364 states and 8572 transitions. [2024-11-28 03:20:18,105 INFO L78 Accepts]: Start accepts. Automaton has 6364 states and 8572 transitions. Word has length 210 [2024-11-28 03:20:18,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:18,108 INFO L471 AbstractCegarLoop]: Abstraction has 6364 states and 8572 transitions. [2024-11-28 03:20:18,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 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) [2024-11-28 03:20:18,108 INFO L276 IsEmpty]: Start isEmpty. Operand 6364 states and 8572 transitions. [2024-11-28 03:20:18,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-28 03:20:18,119 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:18,119 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] [2024-11-28 03:20:18,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:20:18,119 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:20:18,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:18,120 INFO L85 PathProgramCache]: Analyzing trace with hash -753044504, now seen corresponding path program 1 times [2024-11-28 03:20:18,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:18,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078678126] [2024-11-28 03:20:18,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:18,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:21,005 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 23 proven. 3 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-28 03:20:21,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:21,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078678126] [2024-11-28 03:20:21,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078678126] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:21,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258585663] [2024-11-28 03:20:21,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:21,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:21,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:21,007 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:21,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:20:22,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:22,368 INFO L256 TraceCheckSpWp]: Trace formula consists of 1954 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-11-28 03:20:22,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:22,740 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 23 proven. 3 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-28 03:20:22,740 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:24,046 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 23 proven. 3 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-28 03:20:24,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258585663] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:20:24,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:20:24,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 12] total 24 [2024-11-28 03:20:24,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195223133] [2024-11-28 03:20:24,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:24,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 03:20:24,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:24,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 03:20:24,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:20:24,049 INFO L87 Difference]: Start difference. First operand 6364 states and 8572 transitions. Second operand has 24 states, 22 states have (on average 7.090909090909091) internal successors, (156), 18 states have internal predecessors, (156), 6 states have call successors, (33), 2 states have call predecessors, (33), 7 states have return successors, (35), 8 states have call predecessors, (35), 6 states have call successors, (35) [2024-11-28 03:20:25,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:25,167 INFO L93 Difference]: Finished difference Result 12726 states and 17157 transitions. [2024-11-28 03:20:25,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 03:20:25,167 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 7.090909090909091) internal successors, (156), 18 states have internal predecessors, (156), 6 states have call successors, (33), 2 states have call predecessors, (33), 7 states have return successors, (35), 8 states have call predecessors, (35), 6 states have call successors, (35) Word has length 210 [2024-11-28 03:20:25,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:25,202 INFO L225 Difference]: With dead ends: 12726 [2024-11-28 03:20:25,202 INFO L226 Difference]: Without dead ends: 6414 [2024-11-28 03:20:25,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 407 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-28 03:20:25,220 INFO L435 NwaCegarLoop]: 1315 mSDtfsCounter, 12 mSDsluCounter, 22260 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 23575 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:25,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 23575 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:20:25,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6414 states. [2024-11-28 03:20:25,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6414 to 6373. [2024-11-28 03:20:25,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6373 states, 4698 states have (on average 1.2828863346104726) internal successors, (6027), 4778 states have internal predecessors, (6027), 1221 states have call successors, (1221), 412 states have call predecessors, (1221), 453 states have return successors, (1333), 1237 states have call predecessors, (1333), 1220 states have call successors, (1333) [2024-11-28 03:20:25,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6373 states to 6373 states and 8581 transitions. [2024-11-28 03:20:25,595 INFO L78 Accepts]: Start accepts. Automaton has 6373 states and 8581 transitions. Word has length 210 [2024-11-28 03:20:25,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:25,597 INFO L471 AbstractCegarLoop]: Abstraction has 6373 states and 8581 transitions. [2024-11-28 03:20:25,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 7.090909090909091) internal successors, (156), 18 states have internal predecessors, (156), 6 states have call successors, (33), 2 states have call predecessors, (33), 7 states have return successors, (35), 8 states have call predecessors, (35), 6 states have call successors, (35) [2024-11-28 03:20:25,598 INFO L276 IsEmpty]: Start isEmpty. Operand 6373 states and 8581 transitions. [2024-11-28 03:20:25,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-28 03:20:25,607 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:25,607 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] [2024-11-28 03:20:25,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:20:25,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 03:20:25,809 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:20:25,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:25,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1806854100, now seen corresponding path program 2 times [2024-11-28 03:20:25,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:25,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089452874] [2024-11-28 03:20:25,811 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:20:25,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:26,374 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:20:26,375 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:27,121 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-28 03:20:27,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:27,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089452874] [2024-11-28 03:20:27,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089452874] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:27,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45481076] [2024-11-28 03:20:27,122 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:20:27,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:27,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:27,124 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:27,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa74ddf0-e2e3-4006-8087-9b0992e8d662/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process