./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 be936ec9376452d086f72aa92ac4fe7deb233a068e40e0ed8f478fbc228d19b6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 13:39:55,590 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 13:39:55,660 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-24 13:39:55,665 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 13:39:55,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 13:39:55,693 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 13:39:55,694 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 13:39:55,694 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 13:39:55,695 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 13:39:55,695 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 13:39:55,696 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 13:39:55,696 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 13:39:55,697 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 13:39:55,698 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 13:39:55,700 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 13:39:55,700 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 13:39:55,700 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 13:39:55,701 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 13:39:55,701 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 13:39:55,701 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 13:39:55,704 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 13:39:55,705 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 13:39:55,705 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 13:39:55,705 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 13:39:55,705 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 13:39:55,705 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 13:39:55,706 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 13:39:55,706 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 13:39:55,706 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 13:39:55,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 13:39:55,706 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 13:39:55,706 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 13:39:55,707 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 13:39:55,707 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 13:39:55,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 13:39:55,707 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 13:39:55,707 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 13:39:55,708 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 13:39:55,709 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 13:39:55,709 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be936ec9376452d086f72aa92ac4fe7deb233a068e40e0ed8f478fbc228d19b6 [2024-10-24 13:39:56,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 13:39:56,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 13:39:56,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 13:39:56,042 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 13:39:56,042 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 13:39:56,044 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2024-10-24 13:39:57,496 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 13:39:58,015 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 13:39:58,016 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2024-10-24 13:39:58,057 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1666a9d8c/0180322ed1884583b2786148024dd368/FLAGdfa5ae67e [2024-10-24 13:39:58,086 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1666a9d8c/0180322ed1884583b2786148024dd368 [2024-10-24 13:39:58,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 13:39:58,091 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 13:39:58,092 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 13:39:58,093 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 13:39:58,098 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 13:39:58,099 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:39:58" (1/1) ... [2024-10-24 13:39:58,100 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57412341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:58, skipping insertion in model container [2024-10-24 13:39:58,102 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:39:58" (1/1) ... [2024-10-24 13:39:58,220 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 13:39:59,111 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i[164250,164263] [2024-10-24 13:39:59,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 13:39:59,532 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 13:39:59,618 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 %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5441] [2024-10-24 13:39:59,620 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; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5448] [2024-10-24 13:39:59,621 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; btr %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5456-5457] [2024-10-24 13:39:59,622 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; incl %0": "+m" (v->counter)); [5485] [2024-10-24 13:39:59,622 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; decl %0": "+m" (v->counter)); [5492] [2024-10-24 13:39:59,629 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i[164250,164263] [2024-10-24 13:39:59,648 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/6225/dscv_tempdir/dscv/ri/144_2a/drivers/net/can/usb/ems_usb.o.c.prepared"), "i" (546), "i" (12UL)); [6159-6160] [2024-10-24 13:39:59,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 13:39:59,849 INFO L204 MainTranslator]: Completed translation [2024-10-24 13:39:59,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:59 WrapperNode [2024-10-24 13:39:59,850 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 13:39:59,851 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 13:39:59,851 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 13:39:59,852 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 13:39:59,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:59" (1/1) ... [2024-10-24 13:39:59,907 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:59" (1/1) ... [2024-10-24 13:40:00,007 INFO L138 Inliner]: procedures = 169, calls = 760, calls flagged for inlining = 78, calls inlined = 78, statements flattened = 2292 [2024-10-24 13:40:00,008 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 13:40:00,009 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 13:40:00,010 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 13:40:00,010 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 13:40:00,021 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:59" (1/1) ... [2024-10-24 13:40:00,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:59" (1/1) ... [2024-10-24 13:40:00,053 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:59" (1/1) ... [2024-10-24 13:40:00,379 INFO L175 MemorySlicer]: Split 446 memory accesses to 8 slices as follows [2, 42, 336, 20, 9, 20, 9, 8]. 75 percent of accesses are in the largest equivalence class. The 140 initializations are split as follows [2, 42, 88, 0, 0, 0, 0, 8]. The 120 writes are split as follows [0, 0, 104, 11, 0, 0, 5, 0]. [2024-10-24 13:40:00,382 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:59" (1/1) ... [2024-10-24 13:40:00,383 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:59" (1/1) ... [2024-10-24 13:40:00,452 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:59" (1/1) ... [2024-10-24 13:40:00,474 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:59" (1/1) ... [2024-10-24 13:40:00,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:59" (1/1) ... [2024-10-24 13:40:00,512 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:59" (1/1) ... [2024-10-24 13:40:00,554 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 13:40:00,555 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 13:40:00,555 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 13:40:00,556 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 13:40:00,556 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:59" (1/1) ... [2024-10-24 13:40:00,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 13:40:00,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 13:40:00,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 13:40:00,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 13:40:00,637 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-10-24 13:40:00,638 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-10-24 13:40:00,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-10-24 13:40:00,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-10-24 13:40:00,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-10-24 13:40:00,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-10-24 13:40:00,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-10-24 13:40:00,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-10-24 13:40:00,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-10-24 13:40:00,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-10-24 13:40:00,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_18 [2024-10-24 13:40:00,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_18 [2024-10-24 13:40:00,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2024-10-24 13:40:00,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2024-10-24 13:40:00,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_3 [2024-10-24 13:40:00,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_3 [2024-10-24 13:40:00,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2024-10-24 13:40:00,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2024-10-24 13:40:00,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-10-24 13:40:00,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-10-24 13:40:00,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-10-24 13:40:00,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-10-24 13:40:00,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-10-24 13:40:00,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-10-24 13:40:00,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-10-24 13:40:00,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-10-24 13:40:00,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-10-24 13:40:00,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-10-24 13:40:00,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-10-24 13:40:00,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-10-24 13:40:00,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-10-24 13:40:00,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-10-24 13:40:00,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-10-24 13:40:00,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-10-24 13:40:00,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-10-24 13:40:00,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-10-24 13:40:00,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 13:40:00,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 13:40:00,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 13:40:00,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 13:40:00,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-24 13:40:00,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-24 13:40:00,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-24 13:40:00,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-24 13:40:00,642 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-10-24 13:40:00,643 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-10-24 13:40:00,643 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_bulk_callback [2024-10-24 13:40:00,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_bulk_callback [2024-10-24 13:40:00,643 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2024-10-24 13:40:00,643 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2024-10-24 13:40:00,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2024-10-24 13:40:00,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2024-10-24 13:40:00,645 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2024-10-24 13:40:00,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2024-10-24 13:40:00,646 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-10-24 13:40:00,646 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-10-24 13:40:00,646 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-10-24 13:40:00,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-10-24 13:40:00,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-10-24 13:40:00,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-10-24 13:40:00,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2024-10-24 13:40:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2024-10-24 13:40:00,648 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-10-24 13:40:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-10-24 13:40:00,648 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2024-10-24 13:40:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2024-10-24 13:40:00,648 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-10-24 13:40:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-10-24 13:40:00,648 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2024-10-24 13:40:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2024-10-24 13:40:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 13:40:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 13:40:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 13:40:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 13:40:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-24 13:40:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-24 13:40:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-24 13:40:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-24 13:40:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-10-24 13:40:00,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-10-24 13:40:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-10-24 13:40:00,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-10-24 13:40:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 13:40:00,652 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 13:40:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-10-24 13:40:00,652 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-10-24 13:40:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2024-10-24 13:40:00,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2024-10-24 13:40:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 13:40:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-10-24 13:40:00,652 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-10-24 13:40:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-10-24 13:40:00,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-10-24 13:40:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2024-10-24 13:40:00,653 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2024-10-24 13:40:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 13:40:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-10-24 13:40:00,653 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-10-24 13:40:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-10-24 13:40:00,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-10-24 13:40:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 13:40:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 13:40:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 13:40:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 13:40:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-24 13:40:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-24 13:40:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-24 13:40:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-24 13:40:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-10-24 13:40:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2024-10-24 13:40:00,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2024-10-24 13:40:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-10-24 13:40:00,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-10-24 13:40:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-10-24 13:40:00,654 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-10-24 13:40:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2024-10-24 13:40:00,654 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2024-10-24 13:40:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-24 13:40:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-24 13:40:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-24 13:40:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-24 13:40:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-24 13:40:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-24 13:40:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-24 13:40:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-10-24 13:40:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_disconnect [2024-10-24 13:40:00,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_disconnect [2024-10-24 13:40:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-10-24 13:40:00,657 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-10-24 13:40:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2024-10-24 13:40:00,658 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2024-10-24 13:40:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_interrupt_callback [2024-10-24 13:40:00,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_interrupt_callback [2024-10-24 13:40:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2024-10-24 13:40:00,659 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2024-10-24 13:40:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 13:40:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2024-10-24 13:40:00,659 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2024-10-24 13:40:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-24 13:40:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-24 13:40:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-24 13:40:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-24 13:40:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-24 13:40:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-24 13:40:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-10-24 13:40:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-10-24 13:40:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_rx_err [2024-10-24 13:40:00,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_rx_err [2024-10-24 13:40:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-10-24 13:40:00,662 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-10-24 13:40:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-10-24 13:40:00,662 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-10-24 13:40:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-10-24 13:40:00,662 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-10-24 13:40:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2024-10-24 13:40:00,663 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2024-10-24 13:40:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-10-24 13:40:00,663 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-10-24 13:40:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2024-10-24 13:40:00,663 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2024-10-24 13:40:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-10-24 13:40:00,663 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-10-24 13:40:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-10-24 13:40:00,664 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-10-24 13:40:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-10-24 13:40:00,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-10-24 13:40:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2024-10-24 13:40:00,665 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2024-10-24 13:40:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 13:40:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 13:40:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 13:40:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 13:40:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-24 13:40:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-24 13:40:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-24 13:40:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-24 13:40:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2024-10-24 13:40:00,666 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2024-10-24 13:40:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-10-24 13:40:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-10-24 13:40:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-10-24 13:40:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-10-24 13:40:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-10-24 13:40:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-10-24 13:40:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-10-24 13:40:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-10-24 13:40:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-10-24 13:40:00,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-10-24 13:40:00,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 13:40:00,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 13:40:01,105 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 13:40:01,108 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 13:40:01,210 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-10-24 13:40:01,706 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-10-24 13:40:03,463 INFO L? ?]: Removed 985 outVars from TransFormulas that were not future-live. [2024-10-24 13:40:03,464 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 13:40:03,646 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 13:40:03,647 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 13:40:03,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:40:03 BoogieIcfgContainer [2024-10-24 13:40:03,647 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 13:40:03,653 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 13:40:03,654 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 13:40:03,658 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 13:40:03,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:39:58" (1/3) ... [2024-10-24 13:40:03,659 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228fe895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:40:03, skipping insertion in model container [2024-10-24 13:40:03,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:59" (2/3) ... [2024-10-24 13:40:03,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228fe895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:40:03, skipping insertion in model container [2024-10-24 13:40:03,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:40:03" (3/3) ... [2024-10-24 13:40:03,662 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2024-10-24 13:40:03,678 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 13:40:03,679 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 13:40:03,781 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 13:40:03,789 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;@24914609, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 13:40:03,790 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 13:40:03,799 INFO L276 IsEmpty]: Start isEmpty. Operand has 672 states, 463 states have (on average 1.42548596112311) internal successors, (660), 489 states have internal predecessors, (660), 157 states have call successors, (157), 52 states have call predecessors, (157), 50 states have return successors, (151), 146 states have call predecessors, (151), 151 states have call successors, (151) [2024-10-24 13:40:03,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-24 13:40:03,810 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:40:03,811 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:40:03,812 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:40:03,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:40:03,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1533492630, now seen corresponding path program 1 times [2024-10-24 13:40:03,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:40:03,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243353655] [2024-10-24 13:40:03,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:40:03,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:40:04,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:04,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:40:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:04,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 13:40:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:04,559 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 13:40:04,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:40:04,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243353655] [2024-10-24 13:40:04,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243353655] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:40:04,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:40:04,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 13:40:04,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158462801] [2024-10-24 13:40:04,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:40:04,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 13:40:04,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:40:04,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 13:40:04,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 13:40:04,598 INFO L87 Difference]: Start difference. First operand has 672 states, 463 states have (on average 1.42548596112311) internal successors, (660), 489 states have internal predecessors, (660), 157 states have call successors, (157), 52 states have call predecessors, (157), 50 states have return successors, (151), 146 states have call predecessors, (151), 151 states have call successors, (151) Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 13:40:08,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:40:08,644 INFO L93 Difference]: Finished difference Result 2137 states and 3192 transitions. [2024-10-24 13:40:08,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 13:40:08,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2024-10-24 13:40:08,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:40:08,671 INFO L225 Difference]: With dead ends: 2137 [2024-10-24 13:40:08,671 INFO L226 Difference]: Without dead ends: 1447 [2024-10-24 13:40:08,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 13:40:08,687 INFO L432 NwaCegarLoop]: 727 mSDtfsCounter, 1295 mSDsluCounter, 1036 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 462 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1413 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 462 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-10-24 13:40:08,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1413 Valid, 1763 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [462 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-10-24 13:40:08,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2024-10-24 13:40:08,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 1297. [2024-10-24 13:40:08,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1297 states, 905 states have (on average 1.3734806629834253) internal successors, (1243), 937 states have internal predecessors, (1243), 293 states have call successors, (293), 99 states have call predecessors, (293), 98 states have return successors, (288), 278 states have call predecessors, (288), 288 states have call successors, (288) [2024-10-24 13:40:08,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1297 states to 1297 states and 1824 transitions. [2024-10-24 13:40:08,862 INFO L78 Accepts]: Start accepts. Automaton has 1297 states and 1824 transitions. Word has length 23 [2024-10-24 13:40:08,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:40:08,863 INFO L471 AbstractCegarLoop]: Abstraction has 1297 states and 1824 transitions. [2024-10-24 13:40:08,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 13:40:08,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1297 states and 1824 transitions. [2024-10-24 13:40:08,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-24 13:40:08,866 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:40:08,867 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:40:08,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 13:40:08,867 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:40:08,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:40:08,868 INFO L85 PathProgramCache]: Analyzing trace with hash 995292954, now seen corresponding path program 1 times [2024-10-24 13:40:08,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:40:08,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034170772] [2024-10-24 13:40:08,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:40:08,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:40:09,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:09,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:40:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:09,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 13:40:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:09,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 13:40:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:09,328 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 13:40:09,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:40:09,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034170772] [2024-10-24 13:40:09,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034170772] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:40:09,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:40:09,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 13:40:09,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158609642] [2024-10-24 13:40:09,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:40:09,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 13:40:09,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:40:09,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 13:40:09,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 13:40:09,336 INFO L87 Difference]: Start difference. First operand 1297 states and 1824 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 13:40:15,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-24 13:40:17,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:40:17,158 INFO L93 Difference]: Finished difference Result 4180 states and 6087 transitions. [2024-10-24 13:40:17,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 13:40:17,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 32 [2024-10-24 13:40:17,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:40:17,179 INFO L225 Difference]: With dead ends: 4180 [2024-10-24 13:40:17,180 INFO L226 Difference]: Without dead ends: 2888 [2024-10-24 13:40:17,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 13:40:17,190 INFO L432 NwaCegarLoop]: 1116 mSDtfsCounter, 1149 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 2327 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-10-24 13:40:17,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 2327 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 1001 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-10-24 13:40:17,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2024-10-24 13:40:17,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 2692. [2024-10-24 13:40:17,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2692 states, 1882 states have (on average 1.3719447396386824) internal successors, (2582), 1954 states have internal predecessors, (2582), 599 states have call successors, (599), 197 states have call predecessors, (599), 210 states have return successors, (670), 582 states have call predecessors, (670), 594 states have call successors, (670) [2024-10-24 13:40:17,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3851 transitions. [2024-10-24 13:40:17,364 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3851 transitions. Word has length 32 [2024-10-24 13:40:17,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:40:17,364 INFO L471 AbstractCegarLoop]: Abstraction has 2692 states and 3851 transitions. [2024-10-24 13:40:17,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 13:40:17,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3851 transitions. [2024-10-24 13:40:17,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-24 13:40:17,370 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:40:17,370 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:40:17,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 13:40:17,371 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:40:17,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:40:17,371 INFO L85 PathProgramCache]: Analyzing trace with hash 788982468, now seen corresponding path program 1 times [2024-10-24 13:40:17,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:40:17,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939122518] [2024-10-24 13:40:17,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:40:17,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:40:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:17,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:40:17,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:17,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 13:40:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:17,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 13:40:17,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:17,774 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 13:40:17,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:40:17,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939122518] [2024-10-24 13:40:17,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939122518] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:40:17,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:40:17,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 13:40:17,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030470840] [2024-10-24 13:40:17,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:40:17,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 13:40:17,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:40:17,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 13:40:17,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 13:40:17,778 INFO L87 Difference]: Start difference. First operand 2692 states and 3851 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 13:40:20,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:40:20,823 INFO L93 Difference]: Finished difference Result 2880 states and 4184 transitions. [2024-10-24 13:40:20,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 13:40:20,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2024-10-24 13:40:20,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:40:20,841 INFO L225 Difference]: With dead ends: 2880 [2024-10-24 13:40:20,842 INFO L226 Difference]: Without dead ends: 2877 [2024-10-24 13:40:20,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 13:40:20,847 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 1063 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-24 13:40:20,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1154 Valid, 1081 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-24 13:40:20,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2877 states. [2024-10-24 13:40:20,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2877 to 2691. [2024-10-24 13:40:20,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2691 states, 1882 states have (on average 1.371413390010627) internal successors, (2581), 1953 states have internal predecessors, (2581), 598 states have call successors, (598), 197 states have call predecessors, (598), 210 states have return successors, (670), 582 states have call predecessors, (670), 594 states have call successors, (670) [2024-10-24 13:40:20,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2691 states to 2691 states and 3849 transitions. [2024-10-24 13:40:21,002 INFO L78 Accepts]: Start accepts. Automaton has 2691 states and 3849 transitions. Word has length 33 [2024-10-24 13:40:21,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:40:21,003 INFO L471 AbstractCegarLoop]: Abstraction has 2691 states and 3849 transitions. [2024-10-24 13:40:21,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 13:40:21,003 INFO L276 IsEmpty]: Start isEmpty. Operand 2691 states and 3849 transitions. [2024-10-24 13:40:21,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-24 13:40:21,005 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:40:21,006 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:40:21,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 13:40:21,006 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:40:21,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:40:21,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1311670435, now seen corresponding path program 1 times [2024-10-24 13:40:21,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:40:21,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43955850] [2024-10-24 13:40:21,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:40:21,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:40:21,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:21,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:40:21,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:21,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 13:40:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:21,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 13:40:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:21,296 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 13:40:21,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:40:21,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43955850] [2024-10-24 13:40:21,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43955850] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:40:21,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:40:21,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 13:40:21,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322298063] [2024-10-24 13:40:21,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:40:21,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 13:40:21,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:40:21,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 13:40:21,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 13:40:21,301 INFO L87 Difference]: Start difference. First operand 2691 states and 3849 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 13:40:27,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-24 13:40:27,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:40:27,929 INFO L93 Difference]: Finished difference Result 2879 states and 4182 transitions. [2024-10-24 13:40:27,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 13:40:27,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2024-10-24 13:40:27,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:40:27,947 INFO L225 Difference]: With dead ends: 2879 [2024-10-24 13:40:27,947 INFO L226 Difference]: Without dead ends: 2876 [2024-10-24 13:40:27,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 13:40:27,949 INFO L432 NwaCegarLoop]: 709 mSDtfsCounter, 1061 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 283 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-10-24 13:40:27,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 1078 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2024-10-24 13:40:27,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2876 states. [2024-10-24 13:40:28,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2876 to 2690. [2024-10-24 13:40:28,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2690 states, 1882 states have (on average 1.3708820403825717) internal successors, (2580), 1952 states have internal predecessors, (2580), 597 states have call successors, (597), 197 states have call predecessors, (597), 210 states have return successors, (670), 582 states have call predecessors, (670), 594 states have call successors, (670) [2024-10-24 13:40:28,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2690 states to 2690 states and 3847 transitions. [2024-10-24 13:40:28,161 INFO L78 Accepts]: Start accepts. Automaton has 2690 states and 3847 transitions. Word has length 34 [2024-10-24 13:40:28,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:40:28,162 INFO L471 AbstractCegarLoop]: Abstraction has 2690 states and 3847 transitions. [2024-10-24 13:40:28,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 13:40:28,162 INFO L276 IsEmpty]: Start isEmpty. Operand 2690 states and 3847 transitions. [2024-10-24 13:40:28,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-24 13:40:28,167 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:40:28,167 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:40:28,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 13:40:28,168 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:40:28,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:40:28,168 INFO L85 PathProgramCache]: Analyzing trace with hash -2007396121, now seen corresponding path program 1 times [2024-10-24 13:40:28,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:40:28,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303426226] [2024-10-24 13:40:28,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:40:28,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:40:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:28,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:40:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:28,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 13:40:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:28,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 13:40:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:28,376 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 13:40:28,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:40:28,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303426226] [2024-10-24 13:40:28,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303426226] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:40:28,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:40:28,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 13:40:28,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466243842] [2024-10-24 13:40:28,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:40:28,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 13:40:28,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:40:28,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 13:40:28,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 13:40:28,379 INFO L87 Difference]: Start difference. First operand 2690 states and 3847 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 13:40:31,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:40:31,289 INFO L93 Difference]: Finished difference Result 2878 states and 4180 transitions. [2024-10-24 13:40:31,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 13:40:31,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2024-10-24 13:40:31,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:40:31,307 INFO L225 Difference]: With dead ends: 2878 [2024-10-24 13:40:31,308 INFO L226 Difference]: Without dead ends: 2875 [2024-10-24 13:40:31,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 13:40:31,311 INFO L432 NwaCegarLoop]: 707 mSDtfsCounter, 1056 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-24 13:40:31,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1147 Valid, 1074 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-24 13:40:31,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2875 states. [2024-10-24 13:40:31,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2875 to 2689. [2024-10-24 13:40:31,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2689 states, 1882 states have (on average 1.3703506907545164) internal successors, (2579), 1951 states have internal predecessors, (2579), 596 states have call successors, (596), 197 states have call predecessors, (596), 210 states have return successors, (670), 582 states have call predecessors, (670), 594 states have call successors, (670) [2024-10-24 13:40:31,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2689 states to 2689 states and 3845 transitions. [2024-10-24 13:40:31,472 INFO L78 Accepts]: Start accepts. Automaton has 2689 states and 3845 transitions. Word has length 35 [2024-10-24 13:40:31,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:40:31,472 INFO L471 AbstractCegarLoop]: Abstraction has 2689 states and 3845 transitions. [2024-10-24 13:40:31,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 13:40:31,473 INFO L276 IsEmpty]: Start isEmpty. Operand 2689 states and 3845 transitions. [2024-10-24 13:40:31,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-24 13:40:31,474 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:40:31,474 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:40:31,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 13:40:31,475 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:40:31,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:40:31,475 INFO L85 PathProgramCache]: Analyzing trace with hash -2100051040, now seen corresponding path program 1 times [2024-10-24 13:40:31,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:40:31,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283428385] [2024-10-24 13:40:31,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:40:31,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:40:31,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:31,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:40:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:31,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 13:40:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:31,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 13:40:31,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:31,653 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 13:40:31,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:40:31,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283428385] [2024-10-24 13:40:31,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283428385] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:40:31,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:40:31,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 13:40:31,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126907162] [2024-10-24 13:40:31,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:40:31,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 13:40:31,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:40:31,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 13:40:31,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 13:40:31,656 INFO L87 Difference]: Start difference. First operand 2689 states and 3845 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 13:40:34,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:40:34,191 INFO L93 Difference]: Finished difference Result 2877 states and 4178 transitions. [2024-10-24 13:40:34,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 13:40:34,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2024-10-24 13:40:34,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:40:34,209 INFO L225 Difference]: With dead ends: 2877 [2024-10-24 13:40:34,209 INFO L226 Difference]: Without dead ends: 2868 [2024-10-24 13:40:34,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 13:40:34,212 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 1059 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-24 13:40:34,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 1069 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-24 13:40:34,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2868 states. [2024-10-24 13:40:34,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2868 to 2682. [2024-10-24 13:40:34,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2682 states, 1876 states have (on average 1.3694029850746268) internal successors, (2569), 1944 states have internal predecessors, (2569), 595 states have call successors, (595), 197 states have call predecessors, (595), 210 states have return successors, (670), 582 states have call predecessors, (670), 594 states have call successors, (670) [2024-10-24 13:40:34,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2682 states to 2682 states and 3834 transitions. [2024-10-24 13:40:34,414 INFO L78 Accepts]: Start accepts. Automaton has 2682 states and 3834 transitions. Word has length 36 [2024-10-24 13:40:34,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:40:34,414 INFO L471 AbstractCegarLoop]: Abstraction has 2682 states and 3834 transitions. [2024-10-24 13:40:34,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 13:40:34,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2682 states and 3834 transitions. [2024-10-24 13:40:34,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-24 13:40:34,421 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:40:34,421 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-10-24 13:40:34,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 13:40:34,422 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:40:34,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:40:34,422 INFO L85 PathProgramCache]: Analyzing trace with hash -807648992, now seen corresponding path program 1 times [2024-10-24 13:40:34,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:40:34,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5756794] [2024-10-24 13:40:34,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:40:34,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:40:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:34,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:40:34,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:34,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 13:40:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:34,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 13:40:34,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:34,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 13:40:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:34,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:40:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:34,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 13:40:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:34,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 13:40:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:34,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 13:40:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:34,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 13:40:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:34,682 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 13:40:34,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:40:34,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5756794] [2024-10-24 13:40:34,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5756794] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:40:34,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:40:34,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 13:40:34,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63691678] [2024-10-24 13:40:34,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:40:34,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 13:40:34,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:40:34,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 13:40:34,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 13:40:34,687 INFO L87 Difference]: Start difference. First operand 2682 states and 3834 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-24 13:40:38,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:40:38,041 INFO L93 Difference]: Finished difference Result 6406 states and 9171 transitions. [2024-10-24 13:40:38,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 13:40:38,042 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 77 [2024-10-24 13:40:38,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:40:38,065 INFO L225 Difference]: With dead ends: 6406 [2024-10-24 13:40:38,065 INFO L226 Difference]: Without dead ends: 3729 [2024-10-24 13:40:38,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-24 13:40:38,076 INFO L432 NwaCegarLoop]: 713 mSDtfsCounter, 1024 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 783 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 1762 SdHoareTripleChecker+Invalid, 1615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 783 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-10-24 13:40:38,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1054 Valid, 1762 Invalid, 1615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [783 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-10-24 13:40:38,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3729 states. [2024-10-24 13:40:38,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3729 to 3388. [2024-10-24 13:40:38,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3388 states, 2350 states have (on average 1.3548936170212766) internal successors, (3184), 2432 states have internal predecessors, (3184), 734 states have call successors, (734), 276 states have call predecessors, (734), 303 states have return successors, (847), 727 states have call predecessors, (847), 733 states have call successors, (847) [2024-10-24 13:40:38,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3388 states to 3388 states and 4765 transitions. [2024-10-24 13:40:38,368 INFO L78 Accepts]: Start accepts. Automaton has 3388 states and 4765 transitions. Word has length 77 [2024-10-24 13:40:38,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:40:38,369 INFO L471 AbstractCegarLoop]: Abstraction has 3388 states and 4765 transitions. [2024-10-24 13:40:38,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-24 13:40:38,369 INFO L276 IsEmpty]: Start isEmpty. Operand 3388 states and 4765 transitions. [2024-10-24 13:40:38,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-24 13:40:38,373 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:40:38,373 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:40:38,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 13:40:38,374 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:40:38,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:40:38,374 INFO L85 PathProgramCache]: Analyzing trace with hash -686984246, now seen corresponding path program 1 times [2024-10-24 13:40:38,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:40:38,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824446018] [2024-10-24 13:40:38,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:40:38,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:40:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:38,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:40:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:38,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 13:40:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:38,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 13:40:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:38,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 13:40:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:38,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 13:40:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:38,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 13:40:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:38,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:40:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:38,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 13:40:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:38,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 13:40:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:38,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 13:40:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:38,718 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 13:40:38,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:40:38,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824446018] [2024-10-24 13:40:38,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824446018] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:40:38,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:40:38,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 13:40:38,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884007958] [2024-10-24 13:40:38,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:40:38,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 13:40:38,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:40:38,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 13:40:38,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 13:40:38,722 INFO L87 Difference]: Start difference. First operand 3388 states and 4765 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-24 13:40:46,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-24 13:40:47,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:40:47,324 INFO L93 Difference]: Finished difference Result 7878 states and 11135 transitions. [2024-10-24 13:40:47,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 13:40:47,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 89 [2024-10-24 13:40:47,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:40:47,348 INFO L225 Difference]: With dead ends: 7878 [2024-10-24 13:40:47,348 INFO L226 Difference]: Without dead ends: 4501 [2024-10-24 13:40:47,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-24 13:40:47,359 INFO L432 NwaCegarLoop]: 823 mSDtfsCounter, 686 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 1545 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 2770 SdHoareTripleChecker+Invalid, 1995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 1545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-10-24 13:40:47,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 2770 Invalid, 1995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 1545 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2024-10-24 13:40:47,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4501 states. [2024-10-24 13:40:47,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4501 to 4118. [2024-10-24 13:40:47,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4118 states, 2856 states have (on average 1.346638655462185) internal successors, (3846), 2952 states have internal predecessors, (3846), 872 states have call successors, (872), 354 states have call predecessors, (872), 389 states have return successors, (1005), 867 states have call predecessors, (1005), 871 states have call successors, (1005) [2024-10-24 13:40:47,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4118 states to 4118 states and 5723 transitions. [2024-10-24 13:40:47,697 INFO L78 Accepts]: Start accepts. Automaton has 4118 states and 5723 transitions. Word has length 89 [2024-10-24 13:40:47,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:40:47,698 INFO L471 AbstractCegarLoop]: Abstraction has 4118 states and 5723 transitions. [2024-10-24 13:40:47,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-24 13:40:47,698 INFO L276 IsEmpty]: Start isEmpty. Operand 4118 states and 5723 transitions. [2024-10-24 13:40:47,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-24 13:40:47,702 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:40:47,702 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-10-24 13:40:47,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 13:40:47,703 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:40:47,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:40:47,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1790961661, now seen corresponding path program 1 times [2024-10-24 13:40:47,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:40:47,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625232642] [2024-10-24 13:40:47,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:40:47,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:40:47,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:47,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:40:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:47,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 13:40:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:47,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 13:40:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:47,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 13:40:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:47,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 13:40:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:48,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 13:40:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:48,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 13:40:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:48,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 13:40:48,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:48,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 13:40:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:48,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:40:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:48,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 13:40:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:48,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 13:40:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:48,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 13:40:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:48,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 13:40:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:48,126 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-24 13:40:48,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:40:48,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625232642] [2024-10-24 13:40:48,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625232642] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:40:48,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:40:48,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 13:40:48,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234275982] [2024-10-24 13:40:48,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:40:48,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 13:40:48,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:40:48,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 13:40:48,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-24 13:40:48,131 INFO L87 Difference]: Start difference. First operand 4118 states and 5723 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (15), 7 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 13:40:55,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:40:55,806 INFO L93 Difference]: Finished difference Result 12132 states and 17449 transitions. [2024-10-24 13:40:55,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 13:40:55,807 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (15), 7 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 97 [2024-10-24 13:40:55,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:40:55,868 INFO L225 Difference]: With dead ends: 12132 [2024-10-24 13:40:55,868 INFO L226 Difference]: Without dead ends: 8025 [2024-10-24 13:40:55,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-10-24 13:40:55,887 INFO L432 NwaCegarLoop]: 870 mSDtfsCounter, 1910 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 1855 mSolverCounterSat, 942 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2018 SdHoareTripleChecker+Valid, 2893 SdHoareTripleChecker+Invalid, 2797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 942 IncrementalHoareTripleChecker+Valid, 1855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-10-24 13:40:55,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2018 Valid, 2893 Invalid, 2797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [942 Valid, 1855 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-10-24 13:40:55,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8025 states. [2024-10-24 13:40:56,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8025 to 7016. [2024-10-24 13:40:56,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7016 states, 4925 states have (on average 1.36) internal successors, (6698), 5125 states have internal predecessors, (6698), 1448 states have call successors, (1448), 535 states have call predecessors, (1448), 642 states have return successors, (1835), 1467 states have call predecessors, (1835), 1447 states have call successors, (1835) [2024-10-24 13:40:56,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7016 states to 7016 states and 9981 transitions. [2024-10-24 13:40:56,481 INFO L78 Accepts]: Start accepts. Automaton has 7016 states and 9981 transitions. Word has length 97 [2024-10-24 13:40:56,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:40:56,482 INFO L471 AbstractCegarLoop]: Abstraction has 7016 states and 9981 transitions. [2024-10-24 13:40:56,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (15), 7 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 13:40:56,482 INFO L276 IsEmpty]: Start isEmpty. Operand 7016 states and 9981 transitions. [2024-10-24 13:40:56,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 13:40:56,489 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:40:56,489 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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] [2024-10-24 13:40:56,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 13:40:56,489 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:40:56,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:40:56,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1334245481, now seen corresponding path program 1 times [2024-10-24 13:40:56,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:40:56,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456149898] [2024-10-24 13:40:56,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:40:56,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:40:56,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:56,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:40:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:56,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 13:40:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:56,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 13:40:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:56,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 13:40:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:56,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 13:40:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:56,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 13:40:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:56,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:40:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:56,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 13:40:56,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:56,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 13:40:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:56,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 13:40:56,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:40:56,812 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-10-24 13:40:56,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:40:56,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456149898] [2024-10-24 13:40:56,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456149898] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:40:56,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:40:56,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 13:40:56,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654529821] [2024-10-24 13:40:56,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:40:56,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 13:40:56,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:40:56,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 13:40:56,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 13:40:56,815 INFO L87 Difference]: Start difference. First operand 7016 states and 9981 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-24 13:41:04,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-24 13:41:09,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-24 13:41:09,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:41:09,800 INFO L93 Difference]: Finished difference Result 18778 states and 26867 transitions. [2024-10-24 13:41:09,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 13:41:09,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 100 [2024-10-24 13:41:09,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:41:09,853 INFO L225 Difference]: With dead ends: 18778 [2024-10-24 13:41:09,853 INFO L226 Difference]: Without dead ends: 11777 [2024-10-24 13:41:09,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-24 13:41:09,881 INFO L432 NwaCegarLoop]: 816 mSDtfsCounter, 1539 mSDsluCounter, 1862 mSDsCounter, 0 mSdLazyCounter, 1457 mSolverCounterSat, 737 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1601 SdHoareTripleChecker+Valid, 2678 SdHoareTripleChecker+Invalid, 2195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 737 IncrementalHoareTripleChecker+Valid, 1457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2024-10-24 13:41:09,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1601 Valid, 2678 Invalid, 2195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [737 Valid, 1457 Invalid, 1 Unknown, 0 Unchecked, 12.2s Time] [2024-10-24 13:41:09,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11777 states. [2024-10-24 13:41:10,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11777 to 10794. [2024-10-24 13:41:10,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10794 states, 7625 states have (on average 1.3635409836065573) internal successors, (10397), 7981 states have internal predecessors, (10397), 2084 states have call successors, (2084), 885 states have call predecessors, (2084), 1084 states have return successors, (2739), 2127 states have call predecessors, (2739), 2083 states have call successors, (2739) [2024-10-24 13:41:10,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10794 states to 10794 states and 15220 transitions. [2024-10-24 13:41:10,677 INFO L78 Accepts]: Start accepts. Automaton has 10794 states and 15220 transitions. Word has length 100 [2024-10-24 13:41:10,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:41:10,678 INFO L471 AbstractCegarLoop]: Abstraction has 10794 states and 15220 transitions. [2024-10-24 13:41:10,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-24 13:41:10,678 INFO L276 IsEmpty]: Start isEmpty. Operand 10794 states and 15220 transitions. [2024-10-24 13:41:10,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-24 13:41:10,684 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:41:10,684 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 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] [2024-10-24 13:41:10,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 13:41:10,684 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:41:10,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:41:10,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1706918023, now seen corresponding path program 1 times [2024-10-24 13:41:10,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:41:10,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542266186] [2024-10-24 13:41:10,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:41:10,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:41:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:41:11,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:41:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:41:11,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 13:41:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:41:11,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 13:41:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:41:11,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 13:41:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:41:11,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 13:41:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:41:11,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 13:41:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:41:11,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 13:41:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:41:11,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 13:41:11,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:41:11,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 13:41:11,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:41:11,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 13:41:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:41:11,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 13:41:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:41:11,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:41:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:41:11,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 13:41:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:41:11,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 13:41:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:41:11,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 13:41:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:41:11,175 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 13:41:11,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:41:11,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542266186] [2024-10-24 13:41:11,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542266186] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:41:11,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:41:11,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 13:41:11,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235621231] [2024-10-24 13:41:11,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:41:11,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 13:41:11,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:41:11,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 13:41:11,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-24 13:41:11,179 INFO L87 Difference]: Start difference. First operand 10794 states and 15220 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (16), 7 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15)