./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 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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-3061b6d-m [2024-11-19 03:18:33,878 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 03:18:33,972 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 03:18:33,977 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 03:18:33,978 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 03:18:33,995 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 03:18:33,996 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 03:18:33,996 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 03:18:33,996 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 03:18:33,997 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 03:18:33,997 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 03:18:33,998 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 03:18:33,998 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 03:18:33,998 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 03:18:33,999 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 03:18:33,999 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 03:18:34,000 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 03:18:34,000 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 03:18:34,000 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 03:18:34,001 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 03:18:34,001 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 03:18:34,004 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 03:18:34,004 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 03:18:34,005 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 03:18:34,005 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 03:18:34,005 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 03:18:34,005 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 03:18:34,006 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 03:18:34,006 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 03:18:34,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:18:34,006 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 03:18:34,007 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 03:18:34,007 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 03:18:34,008 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 03:18:34,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 03:18:34,009 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 03:18:34,009 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 03:18:34,009 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 03:18:34,009 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 03:18:34,010 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be936ec9376452d086f72aa92ac4fe7deb233a068e40e0ed8f478fbc228d19b6 [2024-11-19 03:18:34,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 03:18:34,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 03:18:34,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 03:18:34,344 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 03:18:34,344 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 03:18:34,346 INFO L431 ainManager$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 [2024-11-19 03:18:35,742 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 03:18:36,220 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 03:18:36,221 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 [2024-11-19 03:18:36,271 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ca0dd313/a0f1652becba40539dd295dfed257b94/FLAG933a00404 [2024-11-19 03:18:36,341 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ca0dd313/a0f1652becba40539dd295dfed257b94 [2024-11-19 03:18:36,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 03:18:36,345 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 03:18:36,347 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 03:18:36,347 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 03:18:36,353 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 03:18:36,354 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:18:36" (1/1) ... [2024-11-19 03:18:36,355 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73f5cfd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:36, skipping insertion in model container [2024-11-19 03:18:36,355 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:18:36" (1/1) ... [2024-11-19 03:18:36,474 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 03:18:37,387 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] [2024-11-19 03:18:37,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:18:37,871 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 03:18:38,035 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] [2024-11-19 03:18:38,038 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] [2024-11-19 03:18:38,040 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] [2024-11-19 03:18:38,043 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] [2024-11-19 03:18:38,044 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] [2024-11-19 03:18:38,088 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] [2024-11-19 03:18:38,129 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] [2024-11-19 03:18:38,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:18:38,302 INFO L204 MainTranslator]: Completed translation [2024-11-19 03:18:38,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38 WrapperNode [2024-11-19 03:18:38,303 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 03:18:38,304 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 03:18:38,304 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 03:18:38,305 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 03:18:38,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2024-11-19 03:18:38,367 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2024-11-19 03:18:38,467 INFO L138 Inliner]: procedures = 168, calls = 765, calls flagged for inlining = 78, calls inlined = 78, statements flattened = 2300 [2024-11-19 03:18:38,468 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 03:18:38,469 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 03:18:38,469 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 03:18:38,469 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 03:18:38,480 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2024-11-19 03:18:38,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2024-11-19 03:18:38,500 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2024-11-19 03:18:38,798 INFO L175 MemorySlicer]: Split 454 memory accesses to 8 slices as follows [2, 44, 342, 20, 9, 20, 9, 8]. 75 percent of accesses are in the largest equivalence class. The 44 initializations are split as follows [2, 0, 34, 0, 0, 0, 0, 8]. The 224 writes are split as follows [0, 44, 164, 11, 0, 0, 5, 0]. [2024-11-19 03:18:38,799 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2024-11-19 03:18:38,799 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2024-11-19 03:18:38,871 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2024-11-19 03:18:38,891 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2024-11-19 03:18:38,950 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2024-11-19 03:18:38,978 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2024-11-19 03:18:39,015 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 03:18:39,020 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 03:18:39,020 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 03:18:39,020 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 03:18:39,021 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2024-11-19 03:18:39,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:18:39,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:18:39,110 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) [2024-11-19 03:18:39,127 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 [2024-11-19 03:18:39,185 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-11-19 03:18:39,185 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-11-19 03:18:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 03:18:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 03:18:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 03:18:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 03:18:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 03:18:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 03:18:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-19 03:18:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-19 03:18:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_18 [2024-11-19 03:18:39,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_18 [2024-11-19 03:18:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2024-11-19 03:18:39,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2024-11-19 03:18:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_3 [2024-11-19 03:18:39,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_3 [2024-11-19 03:18:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2024-11-19 03:18:39,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2024-11-19 03:18:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-19 03:18:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-19 03:18:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-19 03:18:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-19 03:18:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-19 03:18:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-19 03:18:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-19 03:18:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-19 03:18:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 03:18:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 03:18:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 03:18:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 03:18:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 03:18:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 03:18:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-19 03:18:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-19 03:18:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-19 03:18:39,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-19 03:18:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 03:18:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 03:18:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 03:18:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 03:18:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 03:18:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 03:18:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 03:18:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-19 03:18:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-19 03:18:39,194 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-19 03:18:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_bulk_callback [2024-11-19 03:18:39,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_bulk_callback [2024-11-19 03:18:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2024-11-19 03:18:39,194 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2024-11-19 03:18:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2024-11-19 03:18:39,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2024-11-19 03:18:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2024-11-19 03:18:39,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2024-11-19 03:18:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-19 03:18:39,195 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-19 03:18:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-19 03:18:39,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-19 03:18:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-19 03:18:39,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-19 03:18:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2024-11-19 03:18:39,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2024-11-19 03:18:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-19 03:18:39,196 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-19 03:18:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2024-11-19 03:18:39,196 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2024-11-19 03:18:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-19 03:18:39,196 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-19 03:18:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2024-11-19 03:18:39,196 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2024-11-19 03:18:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 03:18:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 03:18:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 03:18:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 03:18:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 03:18:39,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 03:18:39,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 03:18:39,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-19 03:18:39,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-19 03:18:39,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-19 03:18:39,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-19 03:18:39,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-19 03:18:39,199 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 03:18:39,199 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 03:18:39,199 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-19 03:18:39,200 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-19 03:18:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2024-11-19 03:18:39,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2024-11-19 03:18:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 03:18:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-11-19 03:18:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-11-19 03:18:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-19 03:18:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-19 03:18:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2024-11-19 03:18:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2024-11-19 03:18:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 03:18:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-19 03:18:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-19 03:18:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-19 03:18:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-19 03:18:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 03:18:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 03:18:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 03:18:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 03:18:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 03:18:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 03:18:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 03:18:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-19 03:18:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-19 03:18:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2024-11-19 03:18:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2024-11-19 03:18:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-19 03:18:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-19 03:18:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-19 03:18:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-19 03:18:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2024-11-19 03:18:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2024-11-19 03:18:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 03:18:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 03:18:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 03:18:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 03:18:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 03:18:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 03:18:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-19 03:18:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-19 03:18:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_disconnect [2024-11-19 03:18:39,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_disconnect [2024-11-19 03:18:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-11-19 03:18:39,204 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-11-19 03:18:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2024-11-19 03:18:39,205 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2024-11-19 03:18:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_interrupt_callback [2024-11-19 03:18:39,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_interrupt_callback [2024-11-19 03:18:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2024-11-19 03:18:39,206 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2024-11-19 03:18:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 03:18:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2024-11-19 03:18:39,206 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2024-11-19 03:18:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_rx_err [2024-11-19 03:18:39,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_rx_err [2024-11-19 03:18:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-19 03:18:39,207 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-19 03:18:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-19 03:18:39,208 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-19 03:18:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-19 03:18:39,208 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-19 03:18:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2024-11-19 03:18:39,208 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2024-11-19 03:18:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-19 03:18:39,209 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-19 03:18:39,210 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2024-11-19 03:18:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2024-11-19 03:18:39,210 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-19 03:18:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-19 03:18:39,210 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-19 03:18:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-19 03:18:39,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-19 03:18:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-19 03:18:39,210 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2024-11-19 03:18:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2024-11-19 03:18:39,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 03:18:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 03:18:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 03:18:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 03:18:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 03:18:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 03:18:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 03:18:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 03:18:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2024-11-19 03:18:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2024-11-19 03:18:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-19 03:18:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-19 03:18:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-19 03:18:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-19 03:18:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-19 03:18:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-19 03:18:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-19 03:18:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-19 03:18:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-19 03:18:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-19 03:18:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 03:18:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 03:18:39,643 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 03:18:39,645 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 03:18:39,718 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-19 03:18:40,258 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-19 03:18:48,736 INFO L? ?]: Removed 985 outVars from TransFormulas that were not future-live. [2024-11-19 03:18:48,737 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 03:18:48,773 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 03:18:48,777 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 03:18:48,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:18:48 BoogieIcfgContainer [2024-11-19 03:18:48,778 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 03:18:48,780 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 03:18:48,782 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 03:18:48,786 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 03:18:48,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:18:36" (1/3) ... [2024-11-19 03:18:48,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532507a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:18:48, skipping insertion in model container [2024-11-19 03:18:48,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (2/3) ... [2024-11-19 03:18:48,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532507a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:18:48, skipping insertion in model container [2024-11-19 03:18:48,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:18:48" (3/3) ... [2024-11-19 03:18:48,788 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 [2024-11-19 03:18:48,806 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 03:18:48,807 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 03:18:48,900 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 03:18:48,907 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;@4dec5592, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 03:18:48,908 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 03:18:48,916 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) [2024-11-19 03:18:48,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-19 03:18:48,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:48,927 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] [2024-11-19 03:18:48,927 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:48,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:48,933 INFO L85 PathProgramCache]: Analyzing trace with hash -580361329, now seen corresponding path program 1 times [2024-11-19 03:18:48,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:48,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441587878] [2024-11-19 03:18:48,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:48,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:51,550 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 03:18:51,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:51,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441587878] [2024-11-19 03:18:51,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441587878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:51,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:18:51,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:18:51,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240811841] [2024-11-19 03:18:51,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:51,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:18:51,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:51,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:18:51,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:51,590 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) [2024-11-19 03:18:55,641 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 [] [2024-11-19 03:18:55,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:55,930 INFO L93 Difference]: Finished difference Result 2308 states and 3247 transitions. [2024-11-19 03:18:55,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:18:55,933 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 [2024-11-19 03:18:55,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:55,970 INFO L225 Difference]: With dead ends: 2308 [2024-11-19 03:18:55,970 INFO L226 Difference]: Without dead ends: 1505 [2024-11-19 03:18:55,982 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 [2024-11-19 03:18:55,987 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 [2024-11-19 03:18:55,988 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] [2024-11-19 03:18:56,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2024-11-19 03:18:56,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1505. [2024-11-19 03:18:56,171 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) [2024-11-19 03:18:56,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2032 transitions. [2024-11-19 03:18:56,190 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2032 transitions. Word has length 28 [2024-11-19 03:18:56,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:56,191 INFO L471 AbstractCegarLoop]: Abstraction has 1505 states and 2032 transitions. [2024-11-19 03:18:56,191 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) [2024-11-19 03:18:56,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2032 transitions. [2024-11-19 03:18:56,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-19 03:18:56,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:56,198 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] [2024-11-19 03:18:56,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 03:18:56,199 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:56,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:56,200 INFO L85 PathProgramCache]: Analyzing trace with hash -688431053, now seen corresponding path program 1 times [2024-11-19 03:18:56,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:56,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485097502] [2024-11-19 03:18:56,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:56,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:58,379 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 03:18:58,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:58,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485097502] [2024-11-19 03:18:58,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485097502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:58,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:18:58,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:18:58,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993978577] [2024-11-19 03:18:58,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:58,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:18:58,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:58,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:18:58,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:58,386 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) [2024-11-19 03:18:58,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:58,717 INFO L93 Difference]: Finished difference Result 4500 states and 6181 transitions. [2024-11-19 03:18:58,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:18:58,718 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 [2024-11-19 03:18:58,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:58,743 INFO L225 Difference]: With dead ends: 4500 [2024-11-19 03:18:58,746 INFO L226 Difference]: Without dead ends: 3002 [2024-11-19 03:18:58,755 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 [2024-11-19 03:18:58,756 INFO L432 NwaCegarLoop]: 1574 mSDtfsCounter, 1026 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 03:18:58,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 2589 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 03:18:58,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3002 states. [2024-11-19 03:18:58,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3002 to 2992. [2024-11-19 03:18:58,892 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) [2024-11-19 03:18:58,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2992 states to 2992 states and 4083 transitions. [2024-11-19 03:18:58,914 INFO L78 Accepts]: Start accepts. Automaton has 2992 states and 4083 transitions. Word has length 38 [2024-11-19 03:18:58,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:58,915 INFO L471 AbstractCegarLoop]: Abstraction has 2992 states and 4083 transitions. [2024-11-19 03:18:58,916 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) [2024-11-19 03:18:58,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2992 states and 4083 transitions. [2024-11-19 03:18:58,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-19 03:18:58,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:58,921 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] [2024-11-19 03:18:58,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 03:18:58,922 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:58,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:58,922 INFO L85 PathProgramCache]: Analyzing trace with hash 133145803, now seen corresponding path program 1 times [2024-11-19 03:18:58,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:58,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445367176] [2024-11-19 03:18:58,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:58,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:00,890 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 03:19:00,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:00,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445367176] [2024-11-19 03:19:00,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445367176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:00,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:00,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:00,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462428919] [2024-11-19 03:19:00,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:00,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:00,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:00,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:00,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:00,895 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) [2024-11-19 03:19:01,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:01,038 INFO L93 Difference]: Finished difference Result 2994 states and 4084 transitions. [2024-11-19 03:19:01,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:01,039 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 [2024-11-19 03:19:01,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:01,060 INFO L225 Difference]: With dead ends: 2994 [2024-11-19 03:19:01,061 INFO L226 Difference]: Without dead ends: 2991 [2024-11-19 03:19:01,064 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 [2024-11-19 03:19:01,065 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 [2024-11-19 03:19:01,066 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] [2024-11-19 03:19:01,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2024-11-19 03:19:01,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 2991. [2024-11-19 03:19:01,208 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) [2024-11-19 03:19:01,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2991 states to 2991 states and 4081 transitions. [2024-11-19 03:19:01,227 INFO L78 Accepts]: Start accepts. Automaton has 2991 states and 4081 transitions. Word has length 39 [2024-11-19 03:19:01,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:01,228 INFO L471 AbstractCegarLoop]: Abstraction has 2991 states and 4081 transitions. [2024-11-19 03:19:01,228 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) [2024-11-19 03:19:01,228 INFO L276 IsEmpty]: Start isEmpty. Operand 2991 states and 4081 transitions. [2024-11-19 03:19:01,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-19 03:19:01,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:01,231 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] [2024-11-19 03:19:01,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 03:19:01,232 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:01,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:01,233 INFO L85 PathProgramCache]: Analyzing trace with hash -167770570, now seen corresponding path program 1 times [2024-11-19 03:19:01,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:01,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351712649] [2024-11-19 03:19:01,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:01,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:02,651 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 03:19:02,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:02,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351712649] [2024-11-19 03:19:02,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351712649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:02,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:02,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:02,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995633505] [2024-11-19 03:19:02,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:02,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:02,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:02,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:02,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:02,654 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) [2024-11-19 03:19:02,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:02,767 INFO L93 Difference]: Finished difference Result 2993 states and 4082 transitions. [2024-11-19 03:19:02,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:02,768 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 [2024-11-19 03:19:02,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:02,787 INFO L225 Difference]: With dead ends: 2993 [2024-11-19 03:19:02,787 INFO L226 Difference]: Without dead ends: 2990 [2024-11-19 03:19:02,790 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 [2024-11-19 03:19:02,791 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 [2024-11-19 03:19:02,793 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] [2024-11-19 03:19:02,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2024-11-19 03:19:02,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2990. [2024-11-19 03:19:02,919 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) [2024-11-19 03:19:02,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2990 states to 2990 states and 4079 transitions. [2024-11-19 03:19:02,939 INFO L78 Accepts]: Start accepts. Automaton has 2990 states and 4079 transitions. Word has length 40 [2024-11-19 03:19:02,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:02,939 INFO L471 AbstractCegarLoop]: Abstraction has 2990 states and 4079 transitions. [2024-11-19 03:19:02,940 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) [2024-11-19 03:19:02,940 INFO L276 IsEmpty]: Start isEmpty. Operand 2990 states and 4079 transitions. [2024-11-19 03:19:02,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-19 03:19:02,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:02,941 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] [2024-11-19 03:19:02,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 03:19:02,941 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:02,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:02,942 INFO L85 PathProgramCache]: Analyzing trace with hash -906238674, now seen corresponding path program 1 times [2024-11-19 03:19:02,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:02,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023500558] [2024-11-19 03:19:02,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:02,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:04,487 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 03:19:04,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:04,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023500558] [2024-11-19 03:19:04,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023500558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:04,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:04,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:04,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443088209] [2024-11-19 03:19:04,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:04,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:04,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:04,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:04,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:04,493 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) [2024-11-19 03:19:04,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:04,597 INFO L93 Difference]: Finished difference Result 2992 states and 4080 transitions. [2024-11-19 03:19:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:04,599 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 [2024-11-19 03:19:04,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:04,615 INFO L225 Difference]: With dead ends: 2992 [2024-11-19 03:19:04,616 INFO L226 Difference]: Without dead ends: 2989 [2024-11-19 03:19:04,619 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 [2024-11-19 03:19:04,621 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 [2024-11-19 03:19:04,621 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] [2024-11-19 03:19:04,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2989 states. [2024-11-19 03:19:04,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2989 to 2989. [2024-11-19 03:19:04,780 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) [2024-11-19 03:19:04,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2989 states to 2989 states and 4077 transitions. [2024-11-19 03:19:04,797 INFO L78 Accepts]: Start accepts. Automaton has 2989 states and 4077 transitions. Word has length 41 [2024-11-19 03:19:04,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:04,798 INFO L471 AbstractCegarLoop]: Abstraction has 2989 states and 4077 transitions. [2024-11-19 03:19:04,798 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) [2024-11-19 03:19:04,798 INFO L276 IsEmpty]: Start isEmpty. Operand 2989 states and 4077 transitions. [2024-11-19 03:19:04,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-19 03:19:04,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:04,800 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] [2024-11-19 03:19:04,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 03:19:04,800 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:04,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:04,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1971058745, now seen corresponding path program 1 times [2024-11-19 03:19:04,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:04,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349643857] [2024-11-19 03:19:04,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:04,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:06,403 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 03:19:06,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:06,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349643857] [2024-11-19 03:19:06,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349643857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:06,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:06,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:06,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599573982] [2024-11-19 03:19:06,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:06,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:06,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:06,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:06,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:06,408 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) [2024-11-19 03:19:06,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:06,565 INFO L93 Difference]: Finished difference Result 2991 states and 4078 transitions. [2024-11-19 03:19:06,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:06,565 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 [2024-11-19 03:19:06,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:06,584 INFO L225 Difference]: With dead ends: 2991 [2024-11-19 03:19:06,584 INFO L226 Difference]: Without dead ends: 2979 [2024-11-19 03:19:06,588 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 [2024-11-19 03:19:06,589 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 [2024-11-19 03:19:06,589 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] [2024-11-19 03:19:06,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2024-11-19 03:19:06,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2979. [2024-11-19 03:19:06,807 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) [2024-11-19 03:19:06,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 4063 transitions. [2024-11-19 03:19:06,825 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 4063 transitions. Word has length 42 [2024-11-19 03:19:06,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:06,828 INFO L471 AbstractCegarLoop]: Abstraction has 2979 states and 4063 transitions. [2024-11-19 03:19:06,829 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) [2024-11-19 03:19:06,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 4063 transitions. [2024-11-19 03:19:06,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-19 03:19:06,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:06,836 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] [2024-11-19 03:19:06,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 03:19:06,836 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:06,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:06,837 INFO L85 PathProgramCache]: Analyzing trace with hash 146725291, now seen corresponding path program 1 times [2024-11-19 03:19:06,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:06,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279917780] [2024-11-19 03:19:06,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:06,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:08,155 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 03:19:08,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:08,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279917780] [2024-11-19 03:19:08,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279917780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:08,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:08,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:08,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570871771] [2024-11-19 03:19:08,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:08,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:08,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:08,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:08,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:08,159 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) [2024-11-19 03:19:08,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:08,456 INFO L93 Difference]: Finished difference Result 6780 states and 9148 transitions. [2024-11-19 03:19:08,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:08,456 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 [2024-11-19 03:19:08,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:08,481 INFO L225 Difference]: With dead ends: 6780 [2024-11-19 03:19:08,482 INFO L226 Difference]: Without dead ends: 3808 [2024-11-19 03:19:08,494 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 [2024-11-19 03:19:08,495 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 [2024-11-19 03:19:08,496 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] [2024-11-19 03:19:08,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3808 states. [2024-11-19 03:19:08,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3808 to 3800. [2024-11-19 03:19:08,733 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) [2024-11-19 03:19:08,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3800 states to 3800 states and 5083 transitions. [2024-11-19 03:19:08,759 INFO L78 Accepts]: Start accepts. Automaton has 3800 states and 5083 transitions. Word has length 90 [2024-11-19 03:19:08,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:08,759 INFO L471 AbstractCegarLoop]: Abstraction has 3800 states and 5083 transitions. [2024-11-19 03:19:08,760 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) [2024-11-19 03:19:08,760 INFO L276 IsEmpty]: Start isEmpty. Operand 3800 states and 5083 transitions. [2024-11-19 03:19:08,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-19 03:19:08,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:08,765 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] [2024-11-19 03:19:08,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 03:19:08,766 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:08,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:08,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1786600670, now seen corresponding path program 1 times [2024-11-19 03:19:08,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:08,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538500765] [2024-11-19 03:19:08,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:08,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:10,092 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 03:19:10,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:10,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538500765] [2024-11-19 03:19:10,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538500765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:10,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:10,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:10,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779930381] [2024-11-19 03:19:10,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:10,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:10,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:10,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:10,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:10,097 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) [2024-11-19 03:19:14,124 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 [] [2024-11-19 03:19:14,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:14,515 INFO L93 Difference]: Finished difference Result 8456 states and 11260 transitions. [2024-11-19 03:19:14,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:14,516 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 [2024-11-19 03:19:14,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:14,548 INFO L225 Difference]: With dead ends: 8456 [2024-11-19 03:19:14,548 INFO L226 Difference]: Without dead ends: 4670 [2024-11-19 03:19:14,564 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 [2024-11-19 03:19:14,566 INFO L432 NwaCegarLoop]: 1287 mSDtfsCounter, 280 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s 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 [2024-11-19 03:19:14,566 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] [2024-11-19 03:19:14,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4670 states. [2024-11-19 03:19:14,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4670 to 4662. [2024-11-19 03:19:14,966 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) [2024-11-19 03:19:14,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4662 states to 4662 states and 6163 transitions. [2024-11-19 03:19:14,998 INFO L78 Accepts]: Start accepts. Automaton has 4662 states and 6163 transitions. Word has length 106 [2024-11-19 03:19:14,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:14,999 INFO L471 AbstractCegarLoop]: Abstraction has 4662 states and 6163 transitions. [2024-11-19 03:19:15,000 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) [2024-11-19 03:19:15,000 INFO L276 IsEmpty]: Start isEmpty. Operand 4662 states and 6163 transitions. [2024-11-19 03:19:15,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-19 03:19:15,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:15,011 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] [2024-11-19 03:19:15,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 03:19:15,012 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:15,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:15,012 INFO L85 PathProgramCache]: Analyzing trace with hash 476495360, now seen corresponding path program 1 times [2024-11-19 03:19:15,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:15,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601699597] [2024-11-19 03:19:15,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:15,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:16,602 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-19 03:19:16,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:16,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601699597] [2024-11-19 03:19:16,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601699597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:16,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:16,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:16,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798113048] [2024-11-19 03:19:16,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:16,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:16,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:16,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:16,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:16,605 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) [2024-11-19 03:19:20,635 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 [] [2024-11-19 03:19:21,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:21,068 INFO L93 Difference]: Finished difference Result 11352 states and 14978 transitions. [2024-11-19 03:19:21,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:21,069 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 [2024-11-19 03:19:21,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:21,135 INFO L225 Difference]: With dead ends: 11352 [2024-11-19 03:19:21,136 INFO L226 Difference]: Without dead ends: 6704 [2024-11-19 03:19:21,156 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 [2024-11-19 03:19:21,158 INFO L432 NwaCegarLoop]: 1268 mSDtfsCounter, 814 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s 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 [2024-11-19 03:19:21,158 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] [2024-11-19 03:19:21,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6704 states. [2024-11-19 03:19:21,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6704 to 6696. [2024-11-19 03:19:21,473 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) [2024-11-19 03:19:21,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6696 states to 6696 states and 8801 transitions. [2024-11-19 03:19:21,510 INFO L78 Accepts]: Start accepts. Automaton has 6696 states and 8801 transitions. Word has length 118 [2024-11-19 03:19:21,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:21,511 INFO L471 AbstractCegarLoop]: Abstraction has 6696 states and 8801 transitions. [2024-11-19 03:19:21,511 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) [2024-11-19 03:19:21,511 INFO L276 IsEmpty]: Start isEmpty. Operand 6696 states and 8801 transitions. [2024-11-19 03:19:21,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-19 03:19:21,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:21,517 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] [2024-11-19 03:19:21,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 03:19:21,517 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:21,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:21,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1501685478, now seen corresponding path program 1 times [2024-11-19 03:19:21,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:21,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062929581] [2024-11-19 03:19:21,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:21,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:22,804 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-19 03:19:22,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:22,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062929581] [2024-11-19 03:19:22,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062929581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:22,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:22,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:22,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477085003] [2024-11-19 03:19:22,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:22,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:22,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:22,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:22,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:22,807 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) [2024-11-19 03:19:23,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:23,298 INFO L93 Difference]: Finished difference Result 17776 states and 23459 transitions. [2024-11-19 03:19:23,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:23,298 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 [2024-11-19 03:19:23,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:23,366 INFO L225 Difference]: With dead ends: 17776 [2024-11-19 03:19:23,366 INFO L226 Difference]: Without dead ends: 11094 [2024-11-19 03:19:23,397 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 [2024-11-19 03:19:23,397 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 [2024-11-19 03:19:23,399 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] [2024-11-19 03:19:23,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11094 states. [2024-11-19 03:19:23,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11094 to 11072. [2024-11-19 03:19:23,912 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) [2024-11-19 03:19:23,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11072 states to 11072 states and 14638 transitions. [2024-11-19 03:19:23,970 INFO L78 Accepts]: Start accepts. Automaton has 11072 states and 14638 transitions. Word has length 123 [2024-11-19 03:19:23,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:23,970 INFO L471 AbstractCegarLoop]: Abstraction has 11072 states and 14638 transitions. [2024-11-19 03:19:23,971 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) [2024-11-19 03:19:23,971 INFO L276 IsEmpty]: Start isEmpty. Operand 11072 states and 14638 transitions. [2024-11-19 03:19:23,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 03:19:23,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:23,981 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] [2024-11-19 03:19:23,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 03:19:23,982 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:23,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:23,983 INFO L85 PathProgramCache]: Analyzing trace with hash -958202553, now seen corresponding path program 1 times [2024-11-19 03:19:23,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:23,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895738507] [2024-11-19 03:19:23,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:23,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:25,437 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-19 03:19:25,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:25,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895738507] [2024-11-19 03:19:25,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895738507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:25,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:25,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:25,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078928263] [2024-11-19 03:19:25,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:25,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:25,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:25,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:25,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:25,440 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) [2024-11-19 03:19:26,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:26,039 INFO L93 Difference]: Finished difference Result 22158 states and 29304 transitions. [2024-11-19 03:19:26,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:26,040 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 [2024-11-19 03:19:26,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:26,095 INFO L225 Difference]: With dead ends: 22158 [2024-11-19 03:19:26,095 INFO L226 Difference]: Without dead ends: 11104 [2024-11-19 03:19:26,131 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 [2024-11-19 03:19:26,132 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 [2024-11-19 03:19:26,133 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] [2024-11-19 03:19:26,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11104 states. [2024-11-19 03:19:26,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11104 to 11088. [2024-11-19 03:19:26,616 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) [2024-11-19 03:19:26,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11088 states to 11088 states and 14654 transitions. [2024-11-19 03:19:26,669 INFO L78 Accepts]: Start accepts. Automaton has 11088 states and 14654 transitions. Word has length 139 [2024-11-19 03:19:26,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:26,670 INFO L471 AbstractCegarLoop]: Abstraction has 11088 states and 14654 transitions. [2024-11-19 03:19:26,671 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) [2024-11-19 03:19:26,671 INFO L276 IsEmpty]: Start isEmpty. Operand 11088 states and 14654 transitions. [2024-11-19 03:19:26,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-19 03:19:26,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:26,680 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] [2024-11-19 03:19:26,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 03:19:26,681 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:26,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:26,681 INFO L85 PathProgramCache]: Analyzing trace with hash -912870677, now seen corresponding path program 1 times [2024-11-19 03:19:26,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:26,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39731050] [2024-11-19 03:19:26,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:26,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:28,146 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-19 03:19:28,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:28,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39731050] [2024-11-19 03:19:28,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39731050] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:19:28,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802807963] [2024-11-19 03:19:28,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:28,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:19:28,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:19:28,150 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) [2024-11-19 03:19:28,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 03:19:30,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:30,285 INFO L255 TraceCheckSpWp]: Trace formula consists of 2314 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 03:19:30,295 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:19:30,406 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-19 03:19:30,407 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 03:19:30,911 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-19 03:19:30,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802807963] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 03:19:30,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 03:19:30,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-19 03:19:30,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550375981] [2024-11-19 03:19:30,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 03:19:30,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 03:19:30,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:30,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 03:19:30,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-19 03:19:30,914 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) [2024-11-19 03:19:31,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:31,576 INFO L93 Difference]: Finished difference Result 22254 states and 29432 transitions. [2024-11-19 03:19:31,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 03:19:31,578 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 [2024-11-19 03:19:31,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:31,635 INFO L225 Difference]: With dead ends: 22254 [2024-11-19 03:19:31,635 INFO L226 Difference]: Without dead ends: 11184 [2024-11-19 03:19:31,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-19 03:19:31,671 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 [2024-11-19 03:19:31,672 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] [2024-11-19 03:19:31,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11184 states. [2024-11-19 03:19:32,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11184 to 11184. [2024-11-19 03:19:32,151 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) [2024-11-19 03:19:32,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11184 states to 11184 states and 14750 transitions. [2024-11-19 03:19:32,210 INFO L78 Accepts]: Start accepts. Automaton has 11184 states and 14750 transitions. Word has length 141 [2024-11-19 03:19:32,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:32,211 INFO L471 AbstractCegarLoop]: Abstraction has 11184 states and 14750 transitions. [2024-11-19 03:19:32,211 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) [2024-11-19 03:19:32,211 INFO L276 IsEmpty]: Start isEmpty. Operand 11184 states and 14750 transitions. [2024-11-19 03:19:32,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 03:19:32,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:32,224 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] [2024-11-19 03:19:32,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 03:19:32,425 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 [2024-11-19 03:19:32,425 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:32,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:32,426 INFO L85 PathProgramCache]: Analyzing trace with hash -85869097, now seen corresponding path program 2 times [2024-11-19 03:19:32,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:32,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942753454] [2024-11-19 03:19:32,426 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 03:19:32,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:33,827 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 03:19:33,827 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 03:19:34,331 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-19 03:19:34,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:34,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942753454] [2024-11-19 03:19:34,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942753454] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:19:34,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140111907] [2024-11-19 03:19:34,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 03:19:34,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:19:34,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:19:34,334 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) [2024-11-19 03:19:34,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process