./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.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_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/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_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/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_0c2668b1-7d47-4123-b8ef-383c27882c5f/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 99f9870c0a11847528222b5446256dd4069d375e1dee3e428847b909838b4c1b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:44:23,174 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:44:23,246 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 04:44:23,252 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:44:23,252 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:44:23,284 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:44:23,284 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:44:23,285 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:44:23,285 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:44:23,285 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:44:23,285 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:44:23,285 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:44:23,286 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:44:23,286 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:44:23,286 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:44:23,286 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:44:23,286 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:44:23,287 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:44:23,287 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:44:23,287 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:44:23,287 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:44:23,287 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:44:23,287 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:44:23,287 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:44:23,287 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:44:23,288 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:44:23,288 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:44:23,288 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:44:23,288 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:44:23,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:44:23,288 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:44:23,289 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:44:23,289 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:44:23,289 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:44:23,289 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:44:23,289 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:44:23,289 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:44:23,289 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:44:23,290 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:44:23,290 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:44:23,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:44:23,290 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:44:23,290 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:44:23,290 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:44:23,290 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:44:23,290 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_0c2668b1-7d47-4123-b8ef-383c27882c5f/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 -> 99f9870c0a11847528222b5446256dd4069d375e1dee3e428847b909838b4c1b [2024-11-28 04:44:23,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:44:23,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:44:23,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:44:23,625 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:44:23,626 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:44:23,627 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2024-11-28 04:44:26,822 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/data/0d447ef05/7c299fc0271b4be5965d45c5a23e6632/FLAGaa54ae87f [2024-11-28 04:44:27,627 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:44:27,627 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2024-11-28 04:44:27,691 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/data/0d447ef05/7c299fc0271b4be5965d45c5a23e6632/FLAGaa54ae87f [2024-11-28 04:44:27,719 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/data/0d447ef05/7c299fc0271b4be5965d45c5a23e6632 [2024-11-28 04:44:27,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:44:27,724 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:44:27,728 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:44:27,729 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:44:27,736 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:44:27,737 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:27" (1/1) ... [2024-11-28 04:44:27,738 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eac9ad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:27, skipping insertion in model container [2024-11-28 04:44:27,740 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:27" (1/1) ... [2024-11-28 04:44:27,891 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:44:29,044 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_0c2668b1-7d47-4123-b8ef-383c27882c5f/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i[164521,164534] [2024-11-28 04:44:29,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:44:29,657 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:44:29,885 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5500-5501] [2024-11-28 04:44:29,906 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_0c2668b1-7d47-4123-b8ef-383c27882c5f/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i[164521,164534] [2024-11-28 04:44:30,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:44:30,280 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:44:30,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:30 WrapperNode [2024-11-28 04:44:30,281 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:44:30,282 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:44:30,283 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:44:30,283 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:44:30,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:30" (1/1) ... [2024-11-28 04:44:30,368 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:30" (1/1) ... [2024-11-28 04:44:30,468 INFO L138 Inliner]: procedures = 156, calls = 736, calls flagged for inlining = 61, calls inlined = 52, statements flattened = 1661 [2024-11-28 04:44:30,469 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:44:30,470 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:44:30,470 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:44:30,470 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:44:30,480 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:30" (1/1) ... [2024-11-28 04:44:30,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:30" (1/1) ... [2024-11-28 04:44:30,529 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:30" (1/1) ... [2024-11-28 04:44:30,881 INFO L175 MemorySlicer]: Split 256 memory accesses to 7 slices as follows [2, 3, 44, 17, 158, 6, 26]. 62 percent of accesses are in the largest equivalence class. The 34 initializations are split as follows [2, 0, 0, 0, 0, 6, 26]. The 114 writes are split as follows [0, 2, 44, 17, 51, 0, 0]. [2024-11-28 04:44:30,882 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:30" (1/1) ... [2024-11-28 04:44:30,882 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:30" (1/1) ... [2024-11-28 04:44:30,960 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:30" (1/1) ... [2024-11-28 04:44:30,965 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:30" (1/1) ... [2024-11-28 04:44:30,984 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:30" (1/1) ... [2024-11-28 04:44:31,014 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:30" (1/1) ... [2024-11-28 04:44:31,033 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:30" (1/1) ... [2024-11-28 04:44:31,061 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:44:31,062 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:44:31,063 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:44:31,063 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:44:31,064 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:30" (1/1) ... [2024-11-28 04:44:31,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:44:31,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:44:31,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:44:31,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:44:31,141 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2024-11-28 04:44:31,142 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2024-11-28 04:44:31,142 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2024-11-28 04:44:31,142 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2024-11-28 04:44:31,142 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2024-11-28 04:44:31,142 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2024-11-28 04:44:31,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 04:44:31,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 04:44:31,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 04:44:31,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 04:44:31,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 04:44:31,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 04:44:31,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-28 04:44:31,145 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2024-11-28 04:44:31,145 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2024-11-28 04:44:31,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2024-11-28 04:44:31,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2024-11-28 04:44:31,145 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2024-11-28 04:44:31,145 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2024-11-28 04:44:31,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-28 04:44:31,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-28 04:44:31,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-28 04:44:31,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-28 04:44:31,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-28 04:44:31,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-28 04:44:31,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-28 04:44:31,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 04:44:31,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 04:44:31,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 04:44:31,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 04:44:31,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 04:44:31,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 04:44:31,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-28 04:44:31,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-28 04:44:31,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-28 04:44:31,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:44:31,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:44:31,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 04:44:31,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 04:44:31,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 04:44:31,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 04:44:31,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 04:44:31,152 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_m10x_send_skb [2024-11-28 04:44:31,152 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_m10x_send_skb [2024-11-28 04:44:31,152 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2024-11-28 04:44:31,152 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2024-11-28 04:44:31,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2024-11-28 04:44:31,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2024-11-28 04:44:31,152 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2024-11-28 04:44:31,152 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2024-11-28 04:44:31,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-28 04:44:31,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-28 04:44:31,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-28 04:44:31,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-28 04:44:31,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-28 04:44:31,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-28 04:44:31,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-28 04:44:31,153 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-28 04:44:31,153 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-28 04:44:31,153 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-28 04:44:31,153 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-28 04:44:31,153 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-28 04:44:31,153 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-28 04:44:31,153 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-28 04:44:31,153 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-28 04:44:31,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-28 04:44:31,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-28 04:44:31,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-28 04:44:31,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2024-11-28 04:44:31,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2024-11-28 04:44:31,154 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2024-11-28 04:44:31,154 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2024-11-28 04:44:31,154 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2024-11-28 04:44:31,154 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2024-11-28 04:44:31,154 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2024-11-28 04:44:31,155 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2024-11-28 04:44:31,155 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2024-11-28 04:44:31,155 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2024-11-28 04:44:31,157 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2024-11-28 04:44:31,158 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2024-11-28 04:44:31,158 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-28 04:44:31,158 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-28 04:44:31,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:44:31,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:44:31,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 04:44:31,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 04:44:31,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 04:44:31,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 04:44:31,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 04:44:31,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-28 04:44:31,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-28 04:44:31,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-28 04:44:31,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-28 04:44:31,159 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2024-11-28 04:44:31,159 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2024-11-28 04:44:31,159 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2024-11-28 04:44:31,159 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2024-11-28 04:44:31,159 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:44:31,159 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:44:31,159 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2024-11-28 04:44:31,159 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2024-11-28 04:44:31,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:44:31,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-28 04:44:31,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-28 04:44:31,159 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2024-11-28 04:44:31,159 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2024-11-28 04:44:31,159 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-28 04:44:31,159 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-28 04:44:31,160 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2024-11-28 04:44:31,160 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2024-11-28 04:44:31,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:44:31,160 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2024-11-28 04:44:31,160 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2024-11-28 04:44:31,160 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2024-11-28 04:44:31,160 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2024-11-28 04:44:31,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-28 04:44:31,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-28 04:44:31,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:44:31,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:44:31,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:44:31,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 04:44:31,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 04:44:31,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 04:44:31,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 04:44:31,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 04:44:31,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2024-11-28 04:44:31,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2024-11-28 04:44:31,161 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-28 04:44:31,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-28 04:44:31,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_8 [2024-11-28 04:44:31,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_8 [2024-11-28 04:44:31,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:44:31,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:44:31,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 04:44:31,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 04:44:31,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 04:44:31,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 04:44:31,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 04:44:31,166 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2024-11-28 04:44:31,166 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2024-11-28 04:44:31,166 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2024-11-28 04:44:31,166 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2024-11-28 04:44:31,166 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2024-11-28 04:44:31,167 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2024-11-28 04:44:31,167 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2024-11-28 04:44:31,167 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2024-11-28 04:44:31,167 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2024-11-28 04:44:31,167 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2024-11-28 04:44:31,167 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2024-11-28 04:44:31,167 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2024-11-28 04:44:31,168 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-28 04:44:31,168 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-28 04:44:31,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:44:31,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_17 [2024-11-28 04:44:31,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_17 [2024-11-28 04:44:31,169 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-28 04:44:31,169 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-28 04:44:31,169 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_m10x_input [2024-11-28 04:44:31,169 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_m10x_input [2024-11-28 04:44:31,169 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-28 04:44:31,169 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-28 04:44:31,170 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-28 04:44:31,170 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-28 04:44:31,170 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-11-28 04:44:31,171 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-11-28 04:44:31,171 INFO L130 BoogieDeclarations]: Found specification of procedure set_value [2024-11-28 04:44:31,171 INFO L138 BoogieDeclarations]: Found implementation of procedure set_value [2024-11-28 04:44:31,171 INFO L130 BoogieDeclarations]: Found specification of procedure tiocm_to_gigaset [2024-11-28 04:44:31,171 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocm_to_gigaset [2024-11-28 04:44:31,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-28 04:44:31,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-28 04:44:31,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:44:31,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:44:31,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:44:31,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:44:31,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 04:44:31,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 04:44:31,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 04:44:31,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-28 04:44:31,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-28 04:44:31,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-28 04:44:31,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-28 04:44:31,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-28 04:44:31,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-28 04:44:31,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-28 04:44:31,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-28 04:44:31,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-28 04:44:31,172 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2024-11-28 04:44:31,172 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2024-11-28 04:44:31,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:44:31,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:44:31,172 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_read_int_callback [2024-11-28 04:44:31,172 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_read_int_callback [2024-11-28 04:44:31,172 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2024-11-28 04:44:31,172 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2024-11-28 04:44:31,922 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:44:31,925 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:44:32,131 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-28 04:44:33,288 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-28 04:44:39,517 INFO L? ?]: Removed 865 outVars from TransFormulas that were not future-live. [2024-11-28 04:44:39,517 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:44:39,550 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:44:39,550 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:44:39,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:39 BoogieIcfgContainer [2024-11-28 04:44:39,550 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:44:39,557 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:44:39,557 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:44:39,564 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:44:39,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:44:27" (1/3) ... [2024-11-28 04:44:39,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9ec285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:44:39, skipping insertion in model container [2024-11-28 04:44:39,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:30" (2/3) ... [2024-11-28 04:44:39,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9ec285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:44:39, skipping insertion in model container [2024-11-28 04:44:39,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:39" (3/3) ... [2024-11-28 04:44:39,566 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2024-11-28 04:44:39,602 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:44:39,607 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i that has 64 procedures, 923 locations, 1 initial locations, 15 loop locations, and 1 error locations. [2024-11-28 04:44:39,702 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:44:39,719 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;@50fb2b82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:44:39,723 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:44:39,732 INFO L276 IsEmpty]: Start isEmpty. Operand has 891 states, 634 states have (on average 1.3738170347003154) internal successors, (871), 658 states have internal predecessors, (871), 200 states have call successors, (200), 57 states have call predecessors, (200), 55 states have return successors, (194), 189 states have call predecessors, (194), 194 states have call successors, (194) [2024-11-28 04:44:39,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 04:44:39,752 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:39,752 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:39,753 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:39,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:39,759 INFO L85 PathProgramCache]: Analyzing trace with hash 340341705, now seen corresponding path program 1 times [2024-11-28 04:44:39,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:39,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127265279] [2024-11-28 04:44:39,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:39,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:41,182 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:44:41,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:41,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127265279] [2024-11-28 04:44:41,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127265279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:41,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:41,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:44:41,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989041474] [2024-11-28 04:44:41,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:41,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:44:41,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:41,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:44:41,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:44:41,223 INFO L87 Difference]: Start difference. First operand has 891 states, 634 states have (on average 1.3738170347003154) internal successors, (871), 658 states have internal predecessors, (871), 200 states have call successors, (200), 57 states have call predecessors, (200), 55 states have return successors, (194), 189 states have call predecessors, (194), 194 states have call successors, (194) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 04:44:45,267 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 04:44:45,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:45,598 INFO L93 Difference]: Finished difference Result 2600 states and 3748 transitions. [2024-11-28 04:44:45,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:44:45,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 56 [2024-11-28 04:44:45,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:45,641 INFO L225 Difference]: With dead ends: 2600 [2024-11-28 04:44:45,642 INFO L226 Difference]: Without dead ends: 1692 [2024-11-28 04:44:45,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:44:45,659 INFO L435 NwaCegarLoop]: 1258 mSDtfsCounter, 1180 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 2470 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:45,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 2470 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 04:44:45,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2024-11-28 04:44:45,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1692. [2024-11-28 04:44:45,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 1213 states have (on average 1.3536685902720527) internal successors, (1642), 1240 states have internal predecessors, (1642), 370 states have call successors, (370), 109 states have call predecessors, (370), 108 states have return successors, (365), 355 states have call predecessors, (365), 365 states have call successors, (365) [2024-11-28 04:44:45,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 2377 transitions. [2024-11-28 04:44:45,923 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 2377 transitions. Word has length 56 [2024-11-28 04:44:45,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:45,924 INFO L471 AbstractCegarLoop]: Abstraction has 1692 states and 2377 transitions. [2024-11-28 04:44:45,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 04:44:45,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 2377 transitions. [2024-11-28 04:44:45,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-28 04:44:45,965 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:45,965 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:45,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:44:45,965 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:45,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:45,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1766038879, now seen corresponding path program 1 times [2024-11-28 04:44:45,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:45,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914870716] [2024-11-28 04:44:45,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:45,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:47,308 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:44:47,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:47,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914870716] [2024-11-28 04:44:47,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914870716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:47,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:47,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:44:47,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483815370] [2024-11-28 04:44:47,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:47,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:44:47,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:47,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:44:47,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:44:47,317 INFO L87 Difference]: Start difference. First operand 1692 states and 2377 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 04:44:47,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:47,672 INFO L93 Difference]: Finished difference Result 5045 states and 7180 transitions. [2024-11-28 04:44:47,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:44:47,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 59 [2024-11-28 04:44:47,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:47,706 INFO L225 Difference]: With dead ends: 5045 [2024-11-28 04:44:47,706 INFO L226 Difference]: Without dead ends: 3368 [2024-11-28 04:44:47,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:44:47,717 INFO L435 NwaCegarLoop]: 1292 mSDtfsCounter, 1211 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 2492 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:47,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1211 Valid, 2492 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:44:47,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3368 states. [2024-11-28 04:44:47,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3368 to 3358. [2024-11-28 04:44:47,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3358 states, 2411 states have (on average 1.3529655744504354) internal successors, (3262), 2461 states have internal predecessors, (3262), 730 states have call successors, (730), 217 states have call predecessors, (730), 216 states have return successors, (761), 705 states have call predecessors, (761), 725 states have call successors, (761) [2024-11-28 04:44:47,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3358 states to 3358 states and 4753 transitions. [2024-11-28 04:44:47,980 INFO L78 Accepts]: Start accepts. Automaton has 3358 states and 4753 transitions. Word has length 59 [2024-11-28 04:44:47,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:47,981 INFO L471 AbstractCegarLoop]: Abstraction has 3358 states and 4753 transitions. [2024-11-28 04:44:47,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 04:44:47,981 INFO L276 IsEmpty]: Start isEmpty. Operand 3358 states and 4753 transitions. [2024-11-28 04:44:47,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-28 04:44:47,983 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:47,984 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:47,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:44:47,984 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:47,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:47,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1087850661, now seen corresponding path program 1 times [2024-11-28 04:44:47,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:47,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29386907] [2024-11-28 04:44:47,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:47,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:49,149 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:44:49,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:49,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29386907] [2024-11-28 04:44:49,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29386907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:49,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:49,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:44:49,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059540369] [2024-11-28 04:44:49,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:49,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:44:49,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:49,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:44:49,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:44:49,152 INFO L87 Difference]: Start difference. First operand 3358 states and 4753 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 04:44:49,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:49,845 INFO L93 Difference]: Finished difference Result 10035 states and 14414 transitions. [2024-11-28 04:44:49,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:44:49,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 60 [2024-11-28 04:44:49,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:49,910 INFO L225 Difference]: With dead ends: 10035 [2024-11-28 04:44:49,911 INFO L226 Difference]: Without dead ends: 6692 [2024-11-28 04:44:49,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:44:49,953 INFO L435 NwaCegarLoop]: 1348 mSDtfsCounter, 1203 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 2548 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:49,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 2548 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:44:49,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6692 states. [2024-11-28 04:44:50,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6692 to 6683. [2024-11-28 04:44:50,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6683 states, 4800 states have (on average 1.3504166666666666) internal successors, (6482), 4896 states have internal predecessors, (6482), 1450 states have call successors, (1450), 433 states have call predecessors, (1450), 432 states have return successors, (1597), 1405 states have call predecessors, (1597), 1445 states have call successors, (1597) [2024-11-28 04:44:50,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6683 states to 6683 states and 9529 transitions. [2024-11-28 04:44:50,718 INFO L78 Accepts]: Start accepts. Automaton has 6683 states and 9529 transitions. Word has length 60 [2024-11-28 04:44:50,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:50,720 INFO L471 AbstractCegarLoop]: Abstraction has 6683 states and 9529 transitions. [2024-11-28 04:44:50,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 04:44:50,720 INFO L276 IsEmpty]: Start isEmpty. Operand 6683 states and 9529 transitions. [2024-11-28 04:44:50,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-28 04:44:50,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:50,725 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:50,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:44:50,725 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:50,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:50,727 INFO L85 PathProgramCache]: Analyzing trace with hash 635891682, now seen corresponding path program 1 times [2024-11-28 04:44:50,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:50,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779235522] [2024-11-28 04:44:50,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:50,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:51,364 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:44:51,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:51,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779235522] [2024-11-28 04:44:51,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779235522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:51,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:51,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:44:51,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679248639] [2024-11-28 04:44:51,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:51,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:44:51,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:51,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:44:51,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:44:51,367 INFO L87 Difference]: Start difference. First operand 6683 states and 9529 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 04:44:51,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:51,800 INFO L93 Difference]: Finished difference Result 6690 states and 9535 transitions. [2024-11-28 04:44:51,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:44:51,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 61 [2024-11-28 04:44:51,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:51,853 INFO L225 Difference]: With dead ends: 6690 [2024-11-28 04:44:51,854 INFO L226 Difference]: Without dead ends: 6687 [2024-11-28 04:44:51,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:44:51,860 INFO L435 NwaCegarLoop]: 1350 mSDtfsCounter, 1200 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 2549 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:51,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1200 Valid, 2549 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:44:51,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6687 states. [2024-11-28 04:44:52,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6687 to 6684. [2024-11-28 04:44:52,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6684 states, 4801 states have (on average 1.3503436784003333) internal successors, (6483), 4897 states have internal predecessors, (6483), 1450 states have call successors, (1450), 433 states have call predecessors, (1450), 432 states have return successors, (1597), 1405 states have call predecessors, (1597), 1445 states have call successors, (1597) [2024-11-28 04:44:52,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6684 states to 6684 states and 9530 transitions. [2024-11-28 04:44:52,497 INFO L78 Accepts]: Start accepts. Automaton has 6684 states and 9530 transitions. Word has length 61 [2024-11-28 04:44:52,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:52,498 INFO L471 AbstractCegarLoop]: Abstraction has 6684 states and 9530 transitions. [2024-11-28 04:44:52,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 04:44:52,498 INFO L276 IsEmpty]: Start isEmpty. Operand 6684 states and 9530 transitions. [2024-11-28 04:44:52,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 04:44:52,505 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:52,505 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:52,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:44:52,505 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:52,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:52,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1762665666, now seen corresponding path program 1 times [2024-11-28 04:44:52,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:52,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678819336] [2024-11-28 04:44:52,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:52,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:53,166 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:44:53,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:53,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678819336] [2024-11-28 04:44:53,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678819336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:53,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:53,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:44:53,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493920685] [2024-11-28 04:44:53,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:53,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:44:53,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:53,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:44:53,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:44:53,170 INFO L87 Difference]: Start difference. First operand 6684 states and 9530 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 04:44:53,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:53,678 INFO L93 Difference]: Finished difference Result 6686 states and 9531 transitions. [2024-11-28 04:44:53,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:44:53,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 62 [2024-11-28 04:44:53,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:53,746 INFO L225 Difference]: With dead ends: 6686 [2024-11-28 04:44:53,746 INFO L226 Difference]: Without dead ends: 6683 [2024-11-28 04:44:53,756 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:44:53,757 INFO L435 NwaCegarLoop]: 1229 mSDtfsCounter, 1195 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:53,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1195 Valid, 1229 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:44:53,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6683 states. [2024-11-28 04:44:54,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6683 to 6683. [2024-11-28 04:44:54,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6683 states, 4801 states have (on average 1.3501353884607374) internal successors, (6482), 4896 states have internal predecessors, (6482), 1449 states have call successors, (1449), 433 states have call predecessors, (1449), 432 states have return successors, (1597), 1405 states have call predecessors, (1597), 1445 states have call successors, (1597) [2024-11-28 04:44:54,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6683 states to 6683 states and 9528 transitions. [2024-11-28 04:44:54,359 INFO L78 Accepts]: Start accepts. Automaton has 6683 states and 9528 transitions. Word has length 62 [2024-11-28 04:44:54,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:54,359 INFO L471 AbstractCegarLoop]: Abstraction has 6683 states and 9528 transitions. [2024-11-28 04:44:54,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 04:44:54,363 INFO L276 IsEmpty]: Start isEmpty. Operand 6683 states and 9528 transitions. [2024-11-28 04:44:54,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 04:44:54,366 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:54,366 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:54,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:44:54,370 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:54,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:54,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1191472741, now seen corresponding path program 1 times [2024-11-28 04:44:54,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:54,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962218113] [2024-11-28 04:44:54,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:54,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:54,901 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:44:54,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:54,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962218113] [2024-11-28 04:44:54,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962218113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:54,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:54,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:44:54,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462888952] [2024-11-28 04:44:54,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:54,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:44:54,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:54,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:44:54,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:44:54,904 INFO L87 Difference]: Start difference. First operand 6683 states and 9528 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 04:44:55,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:55,277 INFO L93 Difference]: Finished difference Result 6685 states and 9529 transitions. [2024-11-28 04:44:55,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:44:55,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 63 [2024-11-28 04:44:55,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:55,323 INFO L225 Difference]: With dead ends: 6685 [2024-11-28 04:44:55,323 INFO L226 Difference]: Without dead ends: 6663 [2024-11-28 04:44:55,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:44:55,329 INFO L435 NwaCegarLoop]: 1228 mSDtfsCounter, 1192 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1192 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:55,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1192 Valid, 1228 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:44:55,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6663 states. [2024-11-28 04:44:55,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6663 to 6663. [2024-11-28 04:44:55,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6663 states, 4784 states have (on average 1.3501254180602007) internal successors, (6459), 4878 states have internal predecessors, (6459), 1447 states have call successors, (1447), 432 states have call predecessors, (1447), 431 states have return successors, (1596), 1404 states have call predecessors, (1596), 1444 states have call successors, (1596) [2024-11-28 04:44:55,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6663 states to 6663 states and 9502 transitions. [2024-11-28 04:44:55,779 INFO L78 Accepts]: Start accepts. Automaton has 6663 states and 9502 transitions. Word has length 63 [2024-11-28 04:44:55,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:55,780 INFO L471 AbstractCegarLoop]: Abstraction has 6663 states and 9502 transitions. [2024-11-28 04:44:55,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 04:44:55,781 INFO L276 IsEmpty]: Start isEmpty. Operand 6663 states and 9502 transitions. [2024-11-28 04:44:55,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-28 04:44:55,799 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:55,800 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:55,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:44:55,800 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:55,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:55,800 INFO L85 PathProgramCache]: Analyzing trace with hash -635082376, now seen corresponding path program 1 times [2024-11-28 04:44:55,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:55,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949367336] [2024-11-28 04:44:55,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:55,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:56,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:56,429 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-28 04:44:56,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:56,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949367336] [2024-11-28 04:44:56,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949367336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:56,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:56,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:44:56,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071928447] [2024-11-28 04:44:56,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:56,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:44:56,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:56,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:44:56,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:44:56,433 INFO L87 Difference]: Start difference. First operand 6663 states and 9502 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-28 04:44:57,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:57,261 INFO L93 Difference]: Finished difference Result 17066 states and 24171 transitions. [2024-11-28 04:44:57,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:44:57,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 183 [2024-11-28 04:44:57,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:57,346 INFO L225 Difference]: With dead ends: 17066 [2024-11-28 04:44:57,347 INFO L226 Difference]: Without dead ends: 10418 [2024-11-28 04:44:57,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:44:57,382 INFO L435 NwaCegarLoop]: 1287 mSDtfsCounter, 696 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 2465 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:57,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 2465 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:44:57,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10418 states. [2024-11-28 04:44:58,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10418 to 10383. [2024-11-28 04:44:58,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10383 states, 7564 states have (on average 1.3611845584346907) internal successors, (10296), 7678 states have internal predecessors, (10296), 2099 states have call successors, (2099), 720 states have call predecessors, (2099), 719 states have return successors, (2248), 2056 states have call predecessors, (2248), 2096 states have call successors, (2248) [2024-11-28 04:44:58,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10383 states to 10383 states and 14643 transitions. [2024-11-28 04:44:58,367 INFO L78 Accepts]: Start accepts. Automaton has 10383 states and 14643 transitions. Word has length 183 [2024-11-28 04:44:58,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:58,367 INFO L471 AbstractCegarLoop]: Abstraction has 10383 states and 14643 transitions. [2024-11-28 04:44:58,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-28 04:44:58,369 INFO L276 IsEmpty]: Start isEmpty. Operand 10383 states and 14643 transitions. [2024-11-28 04:44:58,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-28 04:44:58,390 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:58,390 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:58,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:44:58,390 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:58,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:58,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1084829672, now seen corresponding path program 1 times [2024-11-28 04:44:58,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:58,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792350602] [2024-11-28 04:44:58,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:58,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:59,323 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-28 04:44:59,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:59,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792350602] [2024-11-28 04:44:59,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792350602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:59,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:59,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:44:59,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3736473] [2024-11-28 04:44:59,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:59,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:44:59,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:59,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:44:59,326 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:44:59,326 INFO L87 Difference]: Start difference. First operand 10383 states and 14643 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-28 04:45:00,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:00,001 INFO L93 Difference]: Finished difference Result 20772 states and 29291 transitions. [2024-11-28 04:45:00,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:45:00,002 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 216 [2024-11-28 04:45:00,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:00,072 INFO L225 Difference]: With dead ends: 20772 [2024-11-28 04:45:00,072 INFO L226 Difference]: Without dead ends: 10404 [2024-11-28 04:45:00,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:45:00,115 INFO L435 NwaCegarLoop]: 1236 mSDtfsCounter, 1220 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 2478 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:00,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 2478 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:45:00,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10404 states. [2024-11-28 04:45:00,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10404 to 10391. [2024-11-28 04:45:00,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10391 states, 7572 states have (on average 1.3600105652403591) internal successors, (10298), 7686 states have internal predecessors, (10298), 2099 states have call successors, (2099), 720 states have call predecessors, (2099), 719 states have return successors, (2248), 2056 states have call predecessors, (2248), 2096 states have call successors, (2248) [2024-11-28 04:45:00,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10391 states to 10391 states and 14645 transitions. [2024-11-28 04:45:00,870 INFO L78 Accepts]: Start accepts. Automaton has 10391 states and 14645 transitions. Word has length 216 [2024-11-28 04:45:00,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:00,870 INFO L471 AbstractCegarLoop]: Abstraction has 10391 states and 14645 transitions. [2024-11-28 04:45:00,870 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-28 04:45:00,870 INFO L276 IsEmpty]: Start isEmpty. Operand 10391 states and 14645 transitions. [2024-11-28 04:45:00,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-28 04:45:00,890 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:00,891 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:00,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:45:00,891 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:45:00,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:00,892 INFO L85 PathProgramCache]: Analyzing trace with hash -803610266, now seen corresponding path program 1 times [2024-11-28 04:45:00,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:00,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299156777] [2024-11-28 04:45:00,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:00,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:01,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:01,588 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 04:45:01,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:01,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299156777] [2024-11-28 04:45:01,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299156777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:01,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:01,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:45:01,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954218547] [2024-11-28 04:45:01,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:01,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:45:01,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:01,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:45:01,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:45:01,590 INFO L87 Difference]: Start difference. First operand 10391 states and 14645 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-28 04:45:05,610 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 04:45:06,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:06,746 INFO L93 Difference]: Finished difference Result 26003 states and 36620 transitions. [2024-11-28 04:45:06,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:45:06,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 218 [2024-11-28 04:45:06,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:06,853 INFO L225 Difference]: With dead ends: 26003 [2024-11-28 04:45:06,853 INFO L226 Difference]: Without dead ends: 15627 [2024-11-28 04:45:06,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:45:06,898 INFO L435 NwaCegarLoop]: 2348 mSDtfsCounter, 1177 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 3545 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:06,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 3545 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 04:45:06,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15627 states. [2024-11-28 04:45:08,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15627 to 15567. [2024-11-28 04:45:08,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15567 states, 11332 states have (on average 1.360571831980233) internal successors, (15418), 11506 states have internal predecessors, (15418), 3143 states have call successors, (3143), 1092 states have call predecessors, (3143), 1091 states have return successors, (3368), 3072 states have call predecessors, (3368), 3140 states have call successors, (3368) [2024-11-28 04:45:08,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15567 states to 15567 states and 21929 transitions. [2024-11-28 04:45:08,370 INFO L78 Accepts]: Start accepts. Automaton has 15567 states and 21929 transitions. Word has length 218 [2024-11-28 04:45:08,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:08,371 INFO L471 AbstractCegarLoop]: Abstraction has 15567 states and 21929 transitions. [2024-11-28 04:45:08,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-28 04:45:08,371 INFO L276 IsEmpty]: Start isEmpty. Operand 15567 states and 21929 transitions. [2024-11-28 04:45:08,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-28 04:45:08,399 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:08,400 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:08,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:45:08,400 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:45:08,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:08,401 INFO L85 PathProgramCache]: Analyzing trace with hash 2053910915, now seen corresponding path program 1 times [2024-11-28 04:45:08,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:08,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854429689] [2024-11-28 04:45:08,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:08,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:09,059 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-28 04:45:09,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:09,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854429689] [2024-11-28 04:45:09,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854429689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:09,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:09,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:45:09,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323771289] [2024-11-28 04:45:09,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:09,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:45:09,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:09,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:45:09,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:45:09,062 INFO L87 Difference]: Start difference. First operand 15567 states and 21929 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 04:45:13,086 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 04:45:13,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:13,812 INFO L93 Difference]: Finished difference Result 26634 states and 37455 transitions. [2024-11-28 04:45:13,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:45:13,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 222 [2024-11-28 04:45:13,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:13,887 INFO L225 Difference]: With dead ends: 26634 [2024-11-28 04:45:13,887 INFO L226 Difference]: Without dead ends: 11080 [2024-11-28 04:45:13,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:45:13,934 INFO L435 NwaCegarLoop]: 1235 mSDtfsCounter, 11 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2455 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:13,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2455 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-11-28 04:45:13,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11080 states. [2024-11-28 04:45:14,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11080 to 11031. [2024-11-28 04:45:14,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11031 states, 8037 states have (on average 1.3588403633196466) internal successors, (10921), 8158 states have internal predecessors, (10921), 2207 states have call successors, (2207), 787 states have call predecessors, (2207), 786 states have return successors, (2356), 2159 states have call predecessors, (2356), 2204 states have call successors, (2356) [2024-11-28 04:45:14,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11031 states to 11031 states and 15484 transitions. [2024-11-28 04:45:14,828 INFO L78 Accepts]: Start accepts. Automaton has 11031 states and 15484 transitions. Word has length 222 [2024-11-28 04:45:14,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:14,828 INFO L471 AbstractCegarLoop]: Abstraction has 11031 states and 15484 transitions. [2024-11-28 04:45:14,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 04:45:14,829 INFO L276 IsEmpty]: Start isEmpty. Operand 11031 states and 15484 transitions. [2024-11-28 04:45:14,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-28 04:45:14,849 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:14,849 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:14,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:45:14,851 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:45:14,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:14,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1242958873, now seen corresponding path program 1 times [2024-11-28 04:45:14,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:14,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935127657] [2024-11-28 04:45:14,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:14,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:15,649 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-28 04:45:15,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:15,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935127657] [2024-11-28 04:45:15,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935127657] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:45:15,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690715586] [2024-11-28 04:45:15,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:15,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:45:15,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:15,657 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:45:15,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:45:17,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:17,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 2261 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:45:17,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:17,417 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-28 04:45:17,417 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:45:17,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690715586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:17,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:45:17,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2024-11-28 04:45:17,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445013129] [2024-11-28 04:45:17,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:17,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:45:17,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:17,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:45:17,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:45:17,420 INFO L87 Difference]: Start difference. First operand 11031 states and 15484 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-11-28 04:45:21,441 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 04:45:23,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:23,632 INFO L93 Difference]: Finished difference Result 32467 states and 45622 transitions. [2024-11-28 04:45:23,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:45:23,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 226 [2024-11-28 04:45:23,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:23,765 INFO L225 Difference]: With dead ends: 32467 [2024-11-28 04:45:23,765 INFO L226 Difference]: Without dead ends: 21893 [2024-11-28 04:45:23,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:45:23,801 INFO L435 NwaCegarLoop]: 2369 mSDtfsCounter, 1220 mSDsluCounter, 5931 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 8300 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:23,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 8300 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 54 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-28 04:45:23,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21893 states. [2024-11-28 04:45:25,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21893 to 21707. [2024-11-28 04:45:25,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21707 states, 15745 states have (on average 1.3573197840584312) internal successors, (21371), 16014 states have internal predecessors, (21371), 4435 states have call successors, (4435), 1527 states have call predecessors, (4435), 1526 states have return successors, (4760), 4311 states have call predecessors, (4760), 4432 states have call successors, (4760) [2024-11-28 04:45:25,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21707 states to 21707 states and 30566 transitions. [2024-11-28 04:45:25,968 INFO L78 Accepts]: Start accepts. Automaton has 21707 states and 30566 transitions. Word has length 226 [2024-11-28 04:45:25,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:25,971 INFO L471 AbstractCegarLoop]: Abstraction has 21707 states and 30566 transitions. [2024-11-28 04:45:25,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-11-28 04:45:25,971 INFO L276 IsEmpty]: Start isEmpty. Operand 21707 states and 30566 transitions. [2024-11-28 04:45:26,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-28 04:45:26,007 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:26,008 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:26,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:45:26,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:45:26,209 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:45:26,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:26,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1246570089, now seen corresponding path program 1 times [2024-11-28 04:45:26,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:26,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10705518] [2024-11-28 04:45:26,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:26,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:27,957 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:45:27,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:27,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10705518] [2024-11-28 04:45:27,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10705518] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:45:27,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722994003] [2024-11-28 04:45:27,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:27,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:45:27,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:27,961 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:45:27,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:45:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:29,316 INFO L256 TraceCheckSpWp]: Trace formula consists of 2256 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:45:29,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:29,479 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-28 04:45:29,479 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:45:29,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722994003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:29,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:45:29,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2024-11-28 04:45:29,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502165580] [2024-11-28 04:45:29,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:29,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:45:29,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:29,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:45:29,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:45:29,481 INFO L87 Difference]: Start difference. First operand 21707 states and 30566 transitions. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-28 04:45:31,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:31,374 INFO L93 Difference]: Finished difference Result 43119 states and 60757 transitions. [2024-11-28 04:45:31,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:45:31,375 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 226 [2024-11-28 04:45:31,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:31,536 INFO L225 Difference]: With dead ends: 43119 [2024-11-28 04:45:31,536 INFO L226 Difference]: Without dead ends: 21869 [2024-11-28 04:45:31,616 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:45:31,616 INFO L435 NwaCegarLoop]: 1227 mSDtfsCounter, 0 mSDsluCounter, 4885 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6112 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:31,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6112 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:45:31,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21869 states. [2024-11-28 04:45:33,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21869 to 21763. [2024-11-28 04:45:33,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21763 states, 15785 states have (on average 1.3564143173899272) internal successors, (21411), 16062 states have internal predecessors, (21411), 4435 states have call successors, (4435), 1527 states have call predecessors, (4435), 1542 states have return successors, (4840), 4319 states have call predecessors, (4840), 4432 states have call successors, (4840) [2024-11-28 04:45:33,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21763 states to 21763 states and 30686 transitions. [2024-11-28 04:45:33,581 INFO L78 Accepts]: Start accepts. Automaton has 21763 states and 30686 transitions. Word has length 226 [2024-11-28 04:45:33,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:33,582 INFO L471 AbstractCegarLoop]: Abstraction has 21763 states and 30686 transitions. [2024-11-28 04:45:33,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-28 04:45:33,582 INFO L276 IsEmpty]: Start isEmpty. Operand 21763 states and 30686 transitions. [2024-11-28 04:45:33,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-28 04:45:33,613 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:33,613 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:33,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:45:33,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:45:33,818 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:45:33,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:33,819 INFO L85 PathProgramCache]: Analyzing trace with hash -832227954, now seen corresponding path program 1 times [2024-11-28 04:45:33,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:33,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799809470] [2024-11-28 04:45:33,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:33,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:35,370 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:45:35,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:35,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799809470] [2024-11-28 04:45:35,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799809470] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:45:35,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579283319] [2024-11-28 04:45:35,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:35,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:45:35,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:35,374 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:45:35,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:45:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:36,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 2282 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:45:36,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:36,868 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-28 04:45:36,869 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:45:36,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579283319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:36,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:45:36,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-11-28 04:45:36,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480683666] [2024-11-28 04:45:36,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:36,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:45:36,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:36,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:45:36,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:45:36,874 INFO L87 Difference]: Start difference. First operand 21763 states and 30686 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-28 04:45:37,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:37,895 INFO L93 Difference]: Finished difference Result 43183 states and 60869 transitions. [2024-11-28 04:45:37,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:45:37,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 232 [2024-11-28 04:45:37,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:38,045 INFO L225 Difference]: With dead ends: 43183 [2024-11-28 04:45:38,045 INFO L226 Difference]: Without dead ends: 21845 [2024-11-28 04:45:38,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:45:38,109 INFO L435 NwaCegarLoop]: 1225 mSDtfsCounter, 0 mSDsluCounter, 3667 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4892 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:38,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4892 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:45:38,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21845 states. [2024-11-28 04:45:39,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21845 to 21763. [2024-11-28 04:45:39,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21763 states, 15785 states have (on average 1.3564143173899272) internal successors, (21411), 16062 states have internal predecessors, (21411), 4435 states have call successors, (4435), 1527 states have call predecessors, (4435), 1542 states have return successors, (4824), 4319 states have call predecessors, (4824), 4432 states have call successors, (4824) [2024-11-28 04:45:39,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21763 states to 21763 states and 30670 transitions. [2024-11-28 04:45:39,825 INFO L78 Accepts]: Start accepts. Automaton has 21763 states and 30670 transitions. Word has length 232 [2024-11-28 04:45:39,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:39,826 INFO L471 AbstractCegarLoop]: Abstraction has 21763 states and 30670 transitions. [2024-11-28 04:45:39,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-28 04:45:39,827 INFO L276 IsEmpty]: Start isEmpty. Operand 21763 states and 30670 transitions. [2024-11-28 04:45:39,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-28 04:45:39,862 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:39,862 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:39,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:45:40,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:45:40,063 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:45:40,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:40,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1840420663, now seen corresponding path program 2 times [2024-11-28 04:45:40,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:40,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918641220] [2024-11-28 04:45:40,065 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:45:40,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:40,696 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:45:40,697 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:45:41,792 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-28 04:45:41,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:41,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918641220] [2024-11-28 04:45:41,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918641220] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:45:41,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495009448] [2024-11-28 04:45:41,793 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:45:41,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:45:41,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:41,795 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:45:41,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c2668b1-7d47-4123-b8ef-383c27882c5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process