./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f 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 ../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-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 15:17:17,991 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 15:17:18,047 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 15:17:18,052 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 15:17:18,053 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 15:17:18,079 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 15:17:18,079 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 15:17:18,079 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 15:17:18,080 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 15:17:18,080 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 15:17:18,081 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 15:17:18,082 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 15:17:18,083 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 15:17:18,086 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 15:17:18,087 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 15:17:18,087 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 15:17:18,087 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 15:17:18,087 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 15:17:18,088 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 15:17:18,088 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 15:17:18,088 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 15:17:18,088 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 15:17:18,089 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 15:17:18,089 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 15:17:18,089 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 15:17:18,089 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 15:17:18,089 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 15:17:18,089 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 15:17:18,090 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 15:17:18,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 15:17:18,090 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 15:17:18,090 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 15:17:18,090 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 15:17:18,091 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 15:17:18,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 15:17:18,091 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 15:17:18,091 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 15:17:18,091 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 15:17:18,091 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 15:17:18,092 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be936ec9376452d086f72aa92ac4fe7deb233a068e40e0ed8f478fbc228d19b6 [2024-11-22 15:17:18,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 15:17:18,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 15:17:18,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 15:17:18,315 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 15:17:18,316 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 15:17:18,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../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 [2024-11-22 15:17:19,560 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 15:17:19,921 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 15:17:19,921 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 [2024-11-22 15:17:19,955 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6deaf1c4f/9ca6b9c4bfc34c9a99d1101724f16658/FLAG7ce688e63 [2024-11-22 15:17:19,969 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6deaf1c4f/9ca6b9c4bfc34c9a99d1101724f16658 [2024-11-22 15:17:19,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 15:17:19,972 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 15:17:19,974 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 15:17:19,974 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 15:17:19,979 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 15:17:19,980 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:17:19" (1/1) ... [2024-11-22 15:17:19,982 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ca75f41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:19, skipping insertion in model container [2024-11-22 15:17:19,982 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:17:19" (1/1) ... [2024-11-22 15:17:20,056 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 15:17:20,724 WARN L250 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] [2024-11-22 15:17:21,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 15:17:21,061 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 15:17:21,153 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] [2024-11-22 15:17:21,155 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] [2024-11-22 15:17:21,157 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] [2024-11-22 15:17:21,160 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] [2024-11-22 15:17:21,161 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] [2024-11-22 15:17:21,171 WARN L250 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] [2024-11-22 15:17:21,203 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] [2024-11-22 15:17:21,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 15:17:21,331 INFO L204 MainTranslator]: Completed translation [2024-11-22 15:17:21,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:21 WrapperNode [2024-11-22 15:17:21,332 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 15:17:21,333 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 15:17:21,333 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 15:17:21,334 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 15:17:21,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:21" (1/1) ... [2024-11-22 15:17:21,381 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:21" (1/1) ... [2024-11-22 15:17:21,489 INFO L138 Inliner]: procedures = 168, calls = 765, calls flagged for inlining = 78, calls inlined = 78, statements flattened = 2300 [2024-11-22 15:17:21,489 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 15:17:21,490 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 15:17:21,490 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 15:17:21,490 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 15:17:21,499 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:21" (1/1) ... [2024-11-22 15:17:21,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:21" (1/1) ... [2024-11-22 15:17:21,518 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:21" (1/1) ... [2024-11-22 15:17:21,690 INFO L175 MemorySlicer]: Split 454 memory accesses to 8 slices as follows [2, 20, 44, 20, 9, 342, 9, 8]. 75 percent of accesses are in the largest equivalence class. The 44 initializations are split as follows [2, 0, 0, 0, 0, 34, 0, 8]. The 224 writes are split as follows [0, 11, 44, 0, 0, 164, 5, 0]. [2024-11-22 15:17:21,690 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:21" (1/1) ... [2024-11-22 15:17:21,690 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:21" (1/1) ... [2024-11-22 15:17:21,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:21" (1/1) ... [2024-11-22 15:17:21,755 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:21" (1/1) ... [2024-11-22 15:17:21,764 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:21" (1/1) ... [2024-11-22 15:17:21,773 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:21" (1/1) ... [2024-11-22 15:17:21,795 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 15:17:21,797 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 15:17:21,797 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 15:17:21,797 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 15:17:21,798 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:21" (1/1) ... [2024-11-22 15:17:21,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 15:17:21,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:17:21,829 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) [2024-11-22 15:17:21,834 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 [2024-11-22 15:17:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-11-22 15:17:21,873 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-11-22 15:17:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-22 15:17:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-22 15:17:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-22 15:17:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-22 15:17:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-22 15:17:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-22 15:17:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-22 15:17:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-22 15:17:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_18 [2024-11-22 15:17:21,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_18 [2024-11-22 15:17:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2024-11-22 15:17:21,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2024-11-22 15:17:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_3 [2024-11-22 15:17:21,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_3 [2024-11-22 15:17:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2024-11-22 15:17:21,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2024-11-22 15:17:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-22 15:17:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-22 15:17:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-22 15:17:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-22 15:17:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-22 15:17:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-22 15:17:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-22 15:17:21,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-22 15:17:21,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-22 15:17:21,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-22 15:17:21,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-22 15:17:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-22 15:17:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-22 15:17:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-22 15:17:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-22 15:17:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-22 15:17:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-22 15:17:21,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-22 15:17:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 15:17:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 15:17:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 15:17:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 15:17:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 15:17:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 15:17:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-22 15:17:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-22 15:17:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-22 15:17:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-22 15:17:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_bulk_callback [2024-11-22 15:17:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_bulk_callback [2024-11-22 15:17:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2024-11-22 15:17:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2024-11-22 15:17:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2024-11-22 15:17:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2024-11-22 15:17:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2024-11-22 15:17:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2024-11-22 15:17:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-22 15:17:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-22 15:17:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-22 15:17:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-22 15:17:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-22 15:17:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-22 15:17:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2024-11-22 15:17:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2024-11-22 15:17:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-22 15:17:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-22 15:17:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2024-11-22 15:17:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2024-11-22 15:17:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-22 15:17:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-22 15:17:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2024-11-22 15:17:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2024-11-22 15:17:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 15:17:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 15:17:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 15:17:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 15:17:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 15:17:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 15:17:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-22 15:17:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-22 15:17:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-22 15:17:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-22 15:17:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-22 15:17:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-22 15:17:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 15:17:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 15:17:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-22 15:17:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-22 15:17:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2024-11-22 15:17:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2024-11-22 15:17:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 15:17:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-11-22 15:17:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-11-22 15:17:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-22 15:17:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-22 15:17:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2024-11-22 15:17:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2024-11-22 15:17:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 15:17:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-22 15:17:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-22 15:17:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-22 15:17:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-22 15:17:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 15:17:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 15:17:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 15:17:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 15:17:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-22 15:17:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-22 15:17:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-22 15:17:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-22 15:17:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-22 15:17:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2024-11-22 15:17:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2024-11-22 15:17:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-22 15:17:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-22 15:17:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-22 15:17:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-22 15:17:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2024-11-22 15:17:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2024-11-22 15:17:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 15:17:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 15:17:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 15:17:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-22 15:17:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-22 15:17:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-22 15:17:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-22 15:17:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-22 15:17:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_disconnect [2024-11-22 15:17:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_disconnect [2024-11-22 15:17:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-11-22 15:17:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-11-22 15:17:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2024-11-22 15:17:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2024-11-22 15:17:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_interrupt_callback [2024-11-22 15:17:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_interrupt_callback [2024-11-22 15:17:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2024-11-22 15:17:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2024-11-22 15:17:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 15:17:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2024-11-22 15:17:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2024-11-22 15:17:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_rx_err [2024-11-22 15:17:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_rx_err [2024-11-22 15:17:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-22 15:17:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-22 15:17:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-22 15:17:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-22 15:17:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-22 15:17:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-22 15:17:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2024-11-22 15:17:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2024-11-22 15:17:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-22 15:17:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-22 15:17:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2024-11-22 15:17:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2024-11-22 15:17:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-22 15:17:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-22 15:17:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-22 15:17:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-22 15:17:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-22 15:17:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-22 15:17:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2024-11-22 15:17:21,922 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2024-11-22 15:17:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 15:17:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 15:17:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 15:17:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 15:17:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 15:17:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 15:17:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 15:17:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-22 15:17:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2024-11-22 15:17:21,922 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2024-11-22 15:17:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-22 15:17:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-22 15:17:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-22 15:17:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-22 15:17:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-22 15:17:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-22 15:17:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-22 15:17:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-22 15:17:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-22 15:17:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-22 15:17:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 15:17:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 15:17:22,253 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 15:17:22,255 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 15:17:22,328 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-22 15:17:22,753 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-22 15:17:28,392 INFO L? ?]: Removed 985 outVars from TransFormulas that were not future-live. [2024-11-22 15:17:28,392 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 15:17:28,419 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 15:17:28,419 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 15:17:28,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:17:28 BoogieIcfgContainer [2024-11-22 15:17:28,420 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 15:17:28,422 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 15:17:28,422 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 15:17:28,425 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 15:17:28,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:17:19" (1/3) ... [2024-11-22 15:17:28,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62a80214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:17:28, skipping insertion in model container [2024-11-22 15:17:28,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:21" (2/3) ... [2024-11-22 15:17:28,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62a80214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:17:28, skipping insertion in model container [2024-11-22 15:17:28,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:17:28" (3/3) ... [2024-11-22 15:17:28,427 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 [2024-11-22 15:17:28,442 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 15:17:28,442 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 15:17:28,513 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 15:17:28,520 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;@3e16b97e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 15:17:28,522 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 15:17:28,530 INFO L276 IsEmpty]: Start isEmpty. Operand has 784 states, 575 states have (on average 1.342608695652174) internal successors, (772), 601 states have internal predecessors, (772), 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) [2024-11-22 15:17:28,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-22 15:17:28,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:28,542 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, 1, 1, 1, 1, 1] [2024-11-22 15:17:28,543 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:28,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:28,549 INFO L85 PathProgramCache]: Analyzing trace with hash -580361329, now seen corresponding path program 1 times [2024-11-22 15:17:28,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:28,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107327566] [2024-11-22 15:17:28,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:28,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:30,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:30,471 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 15:17:30,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:30,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107327566] [2024-11-22 15:17:30,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107327566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:30,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:30,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:30,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959474242] [2024-11-22 15:17:30,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:30,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:30,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:30,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:30,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:30,506 INFO L87 Difference]: Start difference. First operand has 784 states, 575 states have (on average 1.342608695652174) internal successors, (772), 601 states have internal predecessors, (772), 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 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 15:17:34,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-22 15:17:34,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:34,769 INFO L93 Difference]: Finished difference Result 2308 states and 3247 transitions. [2024-11-22 15:17:34,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:34,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 28 [2024-11-22 15:17:34,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:34,792 INFO L225 Difference]: With dead ends: 2308 [2024-11-22 15:17:34,793 INFO L226 Difference]: Without dead ends: 1505 [2024-11-22 15:17:34,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:34,801 INFO L432 NwaCegarLoop]: 1091 mSDtfsCounter, 1012 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 2130 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:34,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1012 Valid, 2130 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-22 15:17:34,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2024-11-22 15:17:34,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1505. [2024-11-22 15:17:34,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1113 states have (on average 1.3036837376460018) internal successors, (1451), 1145 states have internal predecessors, (1451), 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) [2024-11-22 15:17:34,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2032 transitions. [2024-11-22 15:17:34,931 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2032 transitions. Word has length 28 [2024-11-22 15:17:34,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:34,931 INFO L471 AbstractCegarLoop]: Abstraction has 1505 states and 2032 transitions. [2024-11-22 15:17:34,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 15:17:34,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2032 transitions. [2024-11-22 15:17:34,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-22 15:17:34,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:34,934 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, 1, 1] [2024-11-22 15:17:34,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 15:17:34,935 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:34,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:34,935 INFO L85 PathProgramCache]: Analyzing trace with hash -688431053, now seen corresponding path program 1 times [2024-11-22 15:17:34,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:34,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411710966] [2024-11-22 15:17:34,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:34,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:36,460 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 15:17:36,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:36,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411710966] [2024-11-22 15:17:36,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411710966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:36,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:36,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:36,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174762168] [2024-11-22 15:17:36,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:36,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:36,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:36,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:36,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:36,466 INFO L87 Difference]: Start difference. First operand 1505 states and 2032 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2024-11-22 15:17:36,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:36,709 INFO L93 Difference]: Finished difference Result 4500 states and 6181 transitions. [2024-11-22 15:17:36,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:36,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 38 [2024-11-22 15:17:36,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:36,727 INFO L225 Difference]: With dead ends: 4500 [2024-11-22 15:17:36,731 INFO L226 Difference]: Without dead ends: 3002 [2024-11-22 15:17:36,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:36,739 INFO L432 NwaCegarLoop]: 1574 mSDtfsCounter, 1026 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 2589 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:36,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 2589 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 15:17:36,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3002 states. [2024-11-22 15:17:36,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3002 to 2992. [2024-11-22 15:17:36,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2992 states, 2216 states have (on average 1.302346570397112) internal successors, (2886), 2276 states have internal predecessors, (2886), 579 states have call successors, (579), 197 states have call predecessors, (579), 196 states have return successors, (618), 554 states have call predecessors, (618), 574 states have call successors, (618) [2024-11-22 15:17:36,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2992 states to 2992 states and 4083 transitions. [2024-11-22 15:17:36,850 INFO L78 Accepts]: Start accepts. Automaton has 2992 states and 4083 transitions. Word has length 38 [2024-11-22 15:17:36,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:36,850 INFO L471 AbstractCegarLoop]: Abstraction has 2992 states and 4083 transitions. [2024-11-22 15:17:36,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2024-11-22 15:17:36,851 INFO L276 IsEmpty]: Start isEmpty. Operand 2992 states and 4083 transitions. [2024-11-22 15:17:36,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-22 15:17:36,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:36,855 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, 1, 1, 1] [2024-11-22 15:17:36,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 15:17:36,855 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:36,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:36,857 INFO L85 PathProgramCache]: Analyzing trace with hash 133145803, now seen corresponding path program 1 times [2024-11-22 15:17:36,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:36,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912394798] [2024-11-22 15:17:36,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:36,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:38,283 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 15:17:38,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:38,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912394798] [2024-11-22 15:17:38,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912394798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:38,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:38,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:38,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762485427] [2024-11-22 15:17:38,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:38,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:38,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:38,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:38,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:38,285 INFO L87 Difference]: Start difference. First operand 2992 states and 4083 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-11-22 15:17:38,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:38,394 INFO L93 Difference]: Finished difference Result 2994 states and 4084 transitions. [2024-11-22 15:17:38,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:38,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 39 [2024-11-22 15:17:38,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:38,408 INFO L225 Difference]: With dead ends: 2994 [2024-11-22 15:17:38,409 INFO L226 Difference]: Without dead ends: 2991 [2024-11-22 15:17:38,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:38,413 INFO L432 NwaCegarLoop]: 1035 mSDtfsCounter, 1012 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:38,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1012 Valid, 1035 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 15:17:38,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2024-11-22 15:17:38,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 2991. [2024-11-22 15:17:38,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2991 states, 2216 states have (on average 1.3018953068592058) internal successors, (2885), 2275 states have internal predecessors, (2885), 578 states have call successors, (578), 197 states have call predecessors, (578), 196 states have return successors, (618), 554 states have call predecessors, (618), 574 states have call successors, (618) [2024-11-22 15:17:38,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2991 states to 2991 states and 4081 transitions. [2024-11-22 15:17:38,539 INFO L78 Accepts]: Start accepts. Automaton has 2991 states and 4081 transitions. Word has length 39 [2024-11-22 15:17:38,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:38,539 INFO L471 AbstractCegarLoop]: Abstraction has 2991 states and 4081 transitions. [2024-11-22 15:17:38,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-11-22 15:17:38,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2991 states and 4081 transitions. [2024-11-22 15:17:38,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-22 15:17:38,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:38,541 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, 1, 1, 1, 1] [2024-11-22 15:17:38,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 15:17:38,541 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:38,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:38,542 INFO L85 PathProgramCache]: Analyzing trace with hash -167770570, now seen corresponding path program 1 times [2024-11-22 15:17:38,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:38,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727741880] [2024-11-22 15:17:38,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:38,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:39,765 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 15:17:39,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:39,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727741880] [2024-11-22 15:17:39,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727741880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:39,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:39,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:39,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540405997] [2024-11-22 15:17:39,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:39,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:39,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:39,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:39,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:39,768 INFO L87 Difference]: Start difference. First operand 2991 states and 4081 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2024-11-22 15:17:39,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:39,841 INFO L93 Difference]: Finished difference Result 2993 states and 4082 transitions. [2024-11-22 15:17:39,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:39,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 40 [2024-11-22 15:17:39,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:39,854 INFO L225 Difference]: With dead ends: 2993 [2024-11-22 15:17:39,855 INFO L226 Difference]: Without dead ends: 2990 [2024-11-22 15:17:39,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:39,858 INFO L432 NwaCegarLoop]: 1033 mSDtfsCounter, 1009 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:39,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 1033 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 15:17:39,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2024-11-22 15:17:39,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2990. [2024-11-22 15:17:39,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2990 states, 2216 states have (on average 1.3014440433212997) internal successors, (2884), 2274 states have internal predecessors, (2884), 577 states have call successors, (577), 197 states have call predecessors, (577), 196 states have return successors, (618), 554 states have call predecessors, (618), 574 states have call successors, (618) [2024-11-22 15:17:39,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2990 states to 2990 states and 4079 transitions. [2024-11-22 15:17:39,978 INFO L78 Accepts]: Start accepts. Automaton has 2990 states and 4079 transitions. Word has length 40 [2024-11-22 15:17:39,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:39,980 INFO L471 AbstractCegarLoop]: Abstraction has 2990 states and 4079 transitions. [2024-11-22 15:17:39,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2024-11-22 15:17:39,980 INFO L276 IsEmpty]: Start isEmpty. Operand 2990 states and 4079 transitions. [2024-11-22 15:17:39,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-22 15:17:39,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:39,982 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, 1, 1, 1, 1, 1] [2024-11-22 15:17:39,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 15:17:39,983 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:39,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:39,983 INFO L85 PathProgramCache]: Analyzing trace with hash -906238674, now seen corresponding path program 1 times [2024-11-22 15:17:39,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:39,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401405231] [2024-11-22 15:17:39,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:39,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:41,120 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 15:17:41,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:41,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401405231] [2024-11-22 15:17:41,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401405231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:41,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:41,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:41,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869200396] [2024-11-22 15:17:41,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:41,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:41,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:41,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:41,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:41,122 INFO L87 Difference]: Start difference. First operand 2990 states and 4079 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-11-22 15:17:41,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:41,246 INFO L93 Difference]: Finished difference Result 2992 states and 4080 transitions. [2024-11-22 15:17:41,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:41,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 41 [2024-11-22 15:17:41,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:41,262 INFO L225 Difference]: With dead ends: 2992 [2024-11-22 15:17:41,262 INFO L226 Difference]: Without dead ends: 2989 [2024-11-22 15:17:41,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:41,264 INFO L432 NwaCegarLoop]: 1031 mSDtfsCounter, 1006 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:41,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1006 Valid, 1031 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 15:17:41,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2989 states. [2024-11-22 15:17:41,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2989 to 2989. [2024-11-22 15:17:41,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2989 states, 2216 states have (on average 1.3009927797833936) internal successors, (2883), 2273 states have internal predecessors, (2883), 576 states have call successors, (576), 197 states have call predecessors, (576), 196 states have return successors, (618), 554 states have call predecessors, (618), 574 states have call successors, (618) [2024-11-22 15:17:41,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2989 states to 2989 states and 4077 transitions. [2024-11-22 15:17:41,380 INFO L78 Accepts]: Start accepts. Automaton has 2989 states and 4077 transitions. Word has length 41 [2024-11-22 15:17:41,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:41,380 INFO L471 AbstractCegarLoop]: Abstraction has 2989 states and 4077 transitions. [2024-11-22 15:17:41,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-11-22 15:17:41,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2989 states and 4077 transitions. [2024-11-22 15:17:41,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-22 15:17:41,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:41,382 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, 1, 1, 1, 1, 1, 1] [2024-11-22 15:17:41,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 15:17:41,383 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:41,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:41,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1971058745, now seen corresponding path program 1 times [2024-11-22 15:17:41,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:41,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132738057] [2024-11-22 15:17:41,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:41,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:42,409 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 15:17:42,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:42,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132738057] [2024-11-22 15:17:42,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132738057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:42,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:42,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:42,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317704751] [2024-11-22 15:17:42,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:42,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:42,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:42,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:42,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:42,411 INFO L87 Difference]: Start difference. First operand 2989 states and 4077 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-11-22 15:17:42,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:42,484 INFO L93 Difference]: Finished difference Result 2991 states and 4078 transitions. [2024-11-22 15:17:42,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:42,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 42 [2024-11-22 15:17:42,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:42,496 INFO L225 Difference]: With dead ends: 2991 [2024-11-22 15:17:42,496 INFO L226 Difference]: Without dead ends: 2979 [2024-11-22 15:17:42,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:42,498 INFO L432 NwaCegarLoop]: 1030 mSDtfsCounter, 1003 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:42,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 15:17:42,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2024-11-22 15:17:42,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2979. [2024-11-22 15:17:42,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2207 states have (on average 1.3004077933846852) internal successors, (2870), 2263 states have internal predecessors, (2870), 575 states have call successors, (575), 197 states have call predecessors, (575), 196 states have return successors, (618), 554 states have call predecessors, (618), 574 states have call successors, (618) [2024-11-22 15:17:42,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 4063 transitions. [2024-11-22 15:17:42,615 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 4063 transitions. Word has length 42 [2024-11-22 15:17:42,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:42,615 INFO L471 AbstractCegarLoop]: Abstraction has 2979 states and 4063 transitions. [2024-11-22 15:17:42,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-11-22 15:17:42,615 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 4063 transitions. [2024-11-22 15:17:42,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 15:17:42,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:42,623 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:17:42,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 15:17:42,624 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:42,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:42,624 INFO L85 PathProgramCache]: Analyzing trace with hash 146725291, now seen corresponding path program 1 times [2024-11-22 15:17:42,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:42,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392497440] [2024-11-22 15:17:42,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:42,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:43,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:43,862 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 15:17:43,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:43,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392497440] [2024-11-22 15:17:43,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392497440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:43,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:43,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:43,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511253987] [2024-11-22 15:17:43,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:43,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:43,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:43,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:43,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:43,864 INFO L87 Difference]: Start difference. First operand 2979 states and 4063 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 15:17:44,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:44,117 INFO L93 Difference]: Finished difference Result 6780 states and 9148 transitions. [2024-11-22 15:17:44,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:44,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (10), 2 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 90 [2024-11-22 15:17:44,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:44,137 INFO L225 Difference]: With dead ends: 6780 [2024-11-22 15:17:44,138 INFO L226 Difference]: Without dead ends: 3808 [2024-11-22 15:17:44,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:44,149 INFO L432 NwaCegarLoop]: 1076 mSDtfsCounter, 272 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:44,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 2075 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 15:17:44,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3808 states. [2024-11-22 15:17:44,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3808 to 3800. [2024-11-22 15:17:44,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3800 states, 2812 states have (on average 1.2830725462304409) internal successors, (3608), 2876 states have internal predecessors, (3608), 712 states have call successors, (712), 276 states have call predecessors, (712), 275 states have return successors, (763), 691 states have call predecessors, (763), 711 states have call successors, (763) [2024-11-22 15:17:44,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3800 states to 3800 states and 5083 transitions. [2024-11-22 15:17:44,349 INFO L78 Accepts]: Start accepts. Automaton has 3800 states and 5083 transitions. Word has length 90 [2024-11-22 15:17:44,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:44,350 INFO L471 AbstractCegarLoop]: Abstraction has 3800 states and 5083 transitions. [2024-11-22 15:17:44,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 15:17:44,350 INFO L276 IsEmpty]: Start isEmpty. Operand 3800 states and 5083 transitions. [2024-11-22 15:17:44,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-22 15:17:44,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:44,353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:17:44,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 15:17:44,353 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:44,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:44,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1786600670, now seen corresponding path program 1 times [2024-11-22 15:17:44,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:44,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568237859] [2024-11-22 15:17:44,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:44,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:45,495 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 15:17:45,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:45,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568237859] [2024-11-22 15:17:45,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568237859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:45,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:45,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:45,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055993964] [2024-11-22 15:17:45,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:45,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:45,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:45,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:45,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:45,497 INFO L87 Difference]: Start difference. First operand 3800 states and 5083 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 15:17:49,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-22 15:17:49,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:49,888 INFO L93 Difference]: Finished difference Result 8456 states and 11260 transitions. [2024-11-22 15:17:49,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:49,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (11), 2 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 106 [2024-11-22 15:17:49,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:49,915 INFO L225 Difference]: With dead ends: 8456 [2024-11-22 15:17:49,915 INFO L226 Difference]: Without dead ends: 4670 [2024-11-22 15:17:49,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:49,930 INFO L432 NwaCegarLoop]: 1287 mSDtfsCounter, 280 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 2287 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:49,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 2287 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-22 15:17:49,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4670 states. [2024-11-22 15:17:50,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4670 to 4662. [2024-11-22 15:17:50,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4662 states, 3460 states have (on average 1.2739884393063583) internal successors, (4408), 3532 states have internal predecessors, (4408), 848 states have call successors, (848), 354 states have call predecessors, (848), 353 states have return successors, (907), 827 states have call predecessors, (907), 847 states have call successors, (907) [2024-11-22 15:17:50,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4662 states to 4662 states and 6163 transitions. [2024-11-22 15:17:50,202 INFO L78 Accepts]: Start accepts. Automaton has 4662 states and 6163 transitions. Word has length 106 [2024-11-22 15:17:50,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:50,202 INFO L471 AbstractCegarLoop]: Abstraction has 4662 states and 6163 transitions. [2024-11-22 15:17:50,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 15:17:50,203 INFO L276 IsEmpty]: Start isEmpty. Operand 4662 states and 6163 transitions. [2024-11-22 15:17:50,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-22 15:17:50,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:50,208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:17:50,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 15:17:50,208 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:50,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:50,209 INFO L85 PathProgramCache]: Analyzing trace with hash 476495360, now seen corresponding path program 1 times [2024-11-22 15:17:50,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:50,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455280896] [2024-11-22 15:17:50,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:50,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:51,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:51,639 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-22 15:17:51,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:51,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455280896] [2024-11-22 15:17:51,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455280896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:51,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:51,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:51,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430135697] [2024-11-22 15:17:51,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:51,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:51,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:51,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:51,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:51,641 INFO L87 Difference]: Start difference. First operand 4662 states and 6163 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 15:17:55,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-22 15:17:56,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:56,026 INFO L93 Difference]: Finished difference Result 11352 states and 14978 transitions. [2024-11-22 15:17:56,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:56,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (11), 2 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 118 [2024-11-22 15:17:56,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:56,075 INFO L225 Difference]: With dead ends: 11352 [2024-11-22 15:17:56,075 INFO L226 Difference]: Without dead ends: 6704 [2024-11-22 15:17:56,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:56,092 INFO L432 NwaCegarLoop]: 1268 mSDtfsCounter, 814 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 2123 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:56,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 2123 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-22 15:17:56,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6704 states. [2024-11-22 15:17:56,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6704 to 6696. [2024-11-22 15:17:56,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6696 states, 5008 states have (on average 1.2803514376996805) internal successors, (6412), 5128 states have internal predecessors, (6412), 1152 states have call successors, (1152), 536 states have call predecessors, (1152), 535 states have return successors, (1237), 1115 states have call predecessors, (1237), 1151 states have call successors, (1237) [2024-11-22 15:17:56,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6696 states to 6696 states and 8801 transitions. [2024-11-22 15:17:56,369 INFO L78 Accepts]: Start accepts. Automaton has 6696 states and 8801 transitions. Word has length 118 [2024-11-22 15:17:56,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:56,370 INFO L471 AbstractCegarLoop]: Abstraction has 6696 states and 8801 transitions. [2024-11-22 15:17:56,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 15:17:56,371 INFO L276 IsEmpty]: Start isEmpty. Operand 6696 states and 8801 transitions. [2024-11-22 15:17:56,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-22 15:17:56,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:56,374 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:17:56,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 15:17:56,375 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:56,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:56,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1501685478, now seen corresponding path program 1 times [2024-11-22 15:17:56,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:56,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179310929] [2024-11-22 15:17:56,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:56,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:57,535 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-22 15:17:57,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:57,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179310929] [2024-11-22 15:17:57,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179310929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:57,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:57,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:57,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930383276] [2024-11-22 15:17:57,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:57,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:57,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:57,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:57,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:57,538 INFO L87 Difference]: Start difference. First operand 6696 states and 8801 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 15:17:57,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:57,920 INFO L93 Difference]: Finished difference Result 17776 states and 23459 transitions. [2024-11-22 15:17:57,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:57,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 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 123 [2024-11-22 15:17:57,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:57,963 INFO L225 Difference]: With dead ends: 17776 [2024-11-22 15:17:57,964 INFO L226 Difference]: Without dead ends: 11094 [2024-11-22 15:17:57,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:57,986 INFO L432 NwaCegarLoop]: 1270 mSDtfsCounter, 885 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 2275 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:57,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 2275 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 15:17:57,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11094 states. [2024-11-22 15:17:58,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11094 to 11072. [2024-11-22 15:17:58,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11072 states, 8339 states have (on average 1.2949994004077228) internal successors, (10799), 8547 states have internal predecessors, (10799), 1848 states have call successors, (1848), 885 states have call predecessors, (1848), 884 states have return successors, (1991), 1775 states have call predecessors, (1991), 1847 states have call successors, (1991) [2024-11-22 15:17:58,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11072 states to 11072 states and 14638 transitions. [2024-11-22 15:17:58,421 INFO L78 Accepts]: Start accepts. Automaton has 11072 states and 14638 transitions. Word has length 123 [2024-11-22 15:17:58,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:58,422 INFO L471 AbstractCegarLoop]: Abstraction has 11072 states and 14638 transitions. [2024-11-22 15:17:58,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 15:17:58,422 INFO L276 IsEmpty]: Start isEmpty. Operand 11072 states and 14638 transitions. [2024-11-22 15:17:58,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 15:17:58,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:58,431 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:17:58,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 15:17:58,432 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:58,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:58,432 INFO L85 PathProgramCache]: Analyzing trace with hash -958202553, now seen corresponding path program 1 times [2024-11-22 15:17:58,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:58,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260786405] [2024-11-22 15:17:58,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:58,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:59,614 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-22 15:17:59,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:59,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260786405] [2024-11-22 15:17:59,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260786405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:59,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:59,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:59,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926856652] [2024-11-22 15:17:59,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:59,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:59,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:59,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:59,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:59,617 INFO L87 Difference]: Start difference. First operand 11072 states and 14638 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 15:17:59,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:59,970 INFO L93 Difference]: Finished difference Result 22158 states and 29304 transitions. [2024-11-22 15:17:59,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:59,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 139 [2024-11-22 15:17:59,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:18:00,012 INFO L225 Difference]: With dead ends: 22158 [2024-11-22 15:18:00,013 INFO L226 Difference]: Without dead ends: 11104 [2024-11-22 15:18:00,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:18:00,041 INFO L432 NwaCegarLoop]: 1024 mSDtfsCounter, 1 mSDsluCounter, 1020 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2044 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 15:18:00,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2044 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 15:18:00,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11104 states. [2024-11-22 15:18:00,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11104 to 11088. [2024-11-22 15:18:00,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11088 states, 8355 states have (on average 1.2944344703770196) internal successors, (10815), 8563 states have internal predecessors, (10815), 1848 states have call successors, (1848), 885 states have call predecessors, (1848), 884 states have return successors, (1991), 1775 states have call predecessors, (1991), 1847 states have call successors, (1991) [2024-11-22 15:18:00,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11088 states to 11088 states and 14654 transitions. [2024-11-22 15:18:00,543 INFO L78 Accepts]: Start accepts. Automaton has 11088 states and 14654 transitions. Word has length 139 [2024-11-22 15:18:00,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:18:00,544 INFO L471 AbstractCegarLoop]: Abstraction has 11088 states and 14654 transitions. [2024-11-22 15:18:00,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 15:18:00,544 INFO L276 IsEmpty]: Start isEmpty. Operand 11088 states and 14654 transitions. [2024-11-22 15:18:00,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-22 15:18:00,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:18:00,551 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:18:00,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 15:18:00,551 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:18:00,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:18:00,552 INFO L85 PathProgramCache]: Analyzing trace with hash -912870677, now seen corresponding path program 1 times [2024-11-22 15:18:00,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:18:00,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502128458] [2024-11-22 15:18:00,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:18:00,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:18:01,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:18:01,900 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-22 15:18:01,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:18:01,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502128458] [2024-11-22 15:18:01,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502128458] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:18:01,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868788037] [2024-11-22 15:18:01,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:18:01,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:18:01,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:18:01,904 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 15:18:01,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 15:18:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:18:03,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 2314 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 15:18:03,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:18:03,791 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-22 15:18:03,791 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 15:18:04,191 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-22 15:18:04,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868788037] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 15:18:04,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 15:18:04,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-22 15:18:04,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256468405] [2024-11-22 15:18:04,192 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 15:18:04,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 15:18:04,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:18:04,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 15:18:04,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 15:18:04,194 INFO L87 Difference]: Start difference. First operand 11088 states and 14654 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 15:18:04,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:18:04,610 INFO L93 Difference]: Finished difference Result 22254 states and 29432 transitions. [2024-11-22 15:18:04,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 15:18:04,611 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 141 [2024-11-22 15:18:04,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:18:04,653 INFO L225 Difference]: With dead ends: 22254 [2024-11-22 15:18:04,654 INFO L226 Difference]: Without dead ends: 11184 [2024-11-22 15:18:04,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 15:18:04,679 INFO L432 NwaCegarLoop]: 1024 mSDtfsCounter, 2 mSDsluCounter, 3060 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4084 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:18:04,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4084 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 15:18:04,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11184 states. [2024-11-22 15:18:05,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11184 to 11184. [2024-11-22 15:18:05,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11184 states, 8451 states have (on average 1.291089811856585) internal successors, (10911), 8659 states have internal predecessors, (10911), 1848 states have call successors, (1848), 885 states have call predecessors, (1848), 884 states have return successors, (1991), 1775 states have call predecessors, (1991), 1847 states have call successors, (1991) [2024-11-22 15:18:05,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11184 states to 11184 states and 14750 transitions. [2024-11-22 15:18:05,072 INFO L78 Accepts]: Start accepts. Automaton has 11184 states and 14750 transitions. Word has length 141 [2024-11-22 15:18:05,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:18:05,072 INFO L471 AbstractCegarLoop]: Abstraction has 11184 states and 14750 transitions. [2024-11-22 15:18:05,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 15:18:05,073 INFO L276 IsEmpty]: Start isEmpty. Operand 11184 states and 14750 transitions. [2024-11-22 15:18:05,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 15:18:05,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:18:05,082 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:18:05,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 15:18:05,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-22 15:18:05,283 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:18:05,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:18:05,284 INFO L85 PathProgramCache]: Analyzing trace with hash -85869097, now seen corresponding path program 2 times [2024-11-22 15:18:05,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:18:05,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706558723] [2024-11-22 15:18:05,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 15:18:05,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:18:06,380 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 15:18:06,384 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 15:18:06,764 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-22 15:18:06,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:18:06,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706558723] [2024-11-22 15:18:06,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706558723] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:18:06,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238189013] [2024-11-22 15:18:06,765 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 15:18:06,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:18:06,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:18:06,767 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 15:18:06,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process