./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC --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 5bdb144d16ce690b0c83c76766410e2201d517c4cbaa861cb0d7e2bbbb9cb236 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:54:03,902 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:54:03,991 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-24 01:54:04,003 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:54:04,004 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:54:04,037 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:54:04,037 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:54:04,038 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:54:04,038 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:54:04,038 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:54:04,038 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:54:04,038 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:54:04,039 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:54:04,039 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:54:04,039 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:54:04,039 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:54:04,039 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:54:04,039 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:54:04,039 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:54:04,039 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:54:04,039 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:54:04,039 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:54:04,040 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:54:04,040 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:54:04,040 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:54:04,040 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:54:04,040 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:54:04,040 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:54:04,040 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:54:04,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:54:04,040 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:54:04,040 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:54:04,041 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:54:04,041 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:54:04,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:54:04,041 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:54:04,041 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:54:04,041 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:54:04,041 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:54:04,041 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:54:04,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:54:04,042 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:54:04,042 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:54:04,042 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:54:04,042 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:54:04,042 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC 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 -> 5bdb144d16ce690b0c83c76766410e2201d517c4cbaa861cb0d7e2bbbb9cb236 [2024-11-24 01:54:04,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:54:04,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:54:04,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:54:04,392 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:54:04,392 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:54:04,394 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2024-11-24 01:54:07,557 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/data/37874deb9/268fee96ae1a4e20be2dfe0429a796c1/FLAG42d3a1997 [2024-11-24 01:54:08,140 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:54:08,142 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2024-11-24 01:54:08,191 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/data/37874deb9/268fee96ae1a4e20be2dfe0429a796c1/FLAG42d3a1997 [2024-11-24 01:54:08,207 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/data/37874deb9/268fee96ae1a4e20be2dfe0429a796c1 [2024-11-24 01:54:08,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:54:08,213 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:54:08,214 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:54:08,214 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:54:08,219 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:54:08,220 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:54:08" (1/1) ... [2024-11-24 01:54:08,221 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b433771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:08, skipping insertion in model container [2024-11-24 01:54:08,221 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:54:08" (1/1) ... [2024-11-24 01:54:08,317 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:54:09,510 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i[147706,147719] [2024-11-24 01:54:09,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:54:09,742 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:54:09,833 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"); [3376] [2024-11-24 01:54:09,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3384-3385] [2024-11-24 01:54:09,836 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, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3393-3394] [2024-11-24 01:54:09,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [3402-3403] [2024-11-24 01:54:09,839 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3421] [2024-11-24 01:54:09,839 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3424] [2024-11-24 01:54:09,839 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3427] [2024-11-24 01:54:09,840 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3430] [2024-11-24 01:54:09,841 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [3451] [2024-11-24 01:54:09,841 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [3454] [2024-11-24 01:54:09,841 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [3457] [2024-11-24 01:54:09,841 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [3460] [2024-11-24 01:54:10,092 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i[147706,147719] [2024-11-24 01:54:10,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:54:10,233 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:54:10,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:10 WrapperNode [2024-11-24 01:54:10,235 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:54:10,236 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:54:10,236 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:54:10,236 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:54:10,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:10" (1/1) ... [2024-11-24 01:54:10,325 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:10" (1/1) ... [2024-11-24 01:54:10,458 INFO L138 Inliner]: procedures = 224, calls = 1326, calls flagged for inlining = 80, calls inlined = 75, statements flattened = 3189 [2024-11-24 01:54:10,459 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:54:10,460 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:54:10,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:54:10,460 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:54:10,470 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:10" (1/1) ... [2024-11-24 01:54:10,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:10" (1/1) ... [2024-11-24 01:54:10,502 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:10" (1/1) ... [2024-11-24 01:54:10,704 INFO L175 MemorySlicer]: Split 824 memory accesses to 20 slices as follows [2, 5, 5, 29, 12, 15, 15, 26, 1, 1, 3, 5, 16, 8, 647, 3, 6, 14, 8, 3]. 79 percent of accesses are in the largest equivalence class. The 518 initializations are split as follows [2, 5, 5, 0, 0, 8, 8, 0, 0, 0, 3, 5, 0, 8, 451, 3, 6, 3, 8, 3]. The 150 writes are split as follows [0, 0, 0, 29, 2, 3, 0, 26, 0, 1, 0, 0, 16, 0, 63, 0, 0, 10, 0, 0]. [2024-11-24 01:54:10,705 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:10" (1/1) ... [2024-11-24 01:54:10,705 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:10" (1/1) ... [2024-11-24 01:54:10,791 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:10" (1/1) ... [2024-11-24 01:54:10,798 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:10" (1/1) ... [2024-11-24 01:54:10,821 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:10" (1/1) ... [2024-11-24 01:54:10,849 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:10" (1/1) ... [2024-11-24 01:54:10,863 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:10" (1/1) ... [2024-11-24 01:54:10,901 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:54:10,902 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:54:10,902 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:54:10,902 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:54:10,905 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:10" (1/1) ... [2024-11-24 01:54:10,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:54:10,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:54:10,969 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:54:10,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:54:11,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2024-11-24 01:54:11,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2024-11-24 01:54:11,006 INFO L130 BoogieDeclarations]: Found specification of procedure lp_error [2024-11-24 01:54:11,007 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_error [2024-11-24 01:54:11,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-24 01:54:11,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-24 01:54:11,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-24 01:54:11,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-24 01:54:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-24 01:54:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-24 01:54:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-24 01:54:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-24 01:54:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-24 01:54:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-24 01:54:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-24 01:54:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-24 01:54:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-24 01:54:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-24 01:54:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-11-24 01:54:11,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-11-24 01:54:11,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-11-24 01:54:11,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-11-24 01:54:11,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2024-11-24 01:54:11,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2024-11-24 01:54:11,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-24 01:54:11,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-24 01:54:11,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-24 01:54:11,011 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-24 01:54:11,011 INFO L130 BoogieDeclarations]: Found specification of procedure lp_register [2024-11-24 01:54:11,011 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_register [2024-11-24 01:54:11,012 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2024-11-24 01:54:11,012 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2024-11-24 01:54:11,012 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2024-11-24 01:54:11,012 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2024-11-24 01:54:11,012 INFO L130 BoogieDeclarations]: Found specification of procedure lp_release_parport [2024-11-24 01:54:11,012 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_release_parport [2024-11-24 01:54:11,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-24 01:54:11,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-24 01:54:11,012 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-24 01:54:11,012 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-24 01:54:11,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-24 01:54:11,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-24 01:54:11,012 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:54:11,012 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:54:11,012 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-24 01:54:11,012 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-24 01:54:11,012 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2024-11-24 01:54:11,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2024-11-24 01:54:11,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2024-11-24 01:54:11,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2024-11-24 01:54:11,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 01:54:11,013 INFO L130 BoogieDeclarations]: Found specification of procedure lp_set_timeout [2024-11-24 01:54:11,013 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_set_timeout [2024-11-24 01:54:11,016 INFO L130 BoogieDeclarations]: Found specification of procedure lp_reset [2024-11-24 01:54:11,016 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_reset [2024-11-24 01:54:11,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_25 [2024-11-24 01:54:11,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_25 [2024-11-24 01:54:11,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 01:54:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 01:54:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 01:54:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 01:54:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 01:54:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 01:54:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-24 01:54:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-24 01:54:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-24 01:54:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-24 01:54:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-24 01:54:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-24 01:54:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-24 01:54:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-24 01:54:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-24 01:54:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-24 01:54:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-24 01:54:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-11-24 01:54:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-11-24 01:54:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-11-24 01:54:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-24 01:54:11,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-24 01:54:11,018 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2024-11-24 01:54:11,018 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2024-11-24 01:54:11,018 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2024-11-24 01:54:11,018 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2024-11-24 01:54:11,018 INFO L130 BoogieDeclarations]: Found specification of procedure parport_write [2024-11-24 01:54:11,018 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_write [2024-11-24 01:54:11,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 01:54:11,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-24 01:54:11,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-24 01:54:11,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-24 01:54:11,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-24 01:54:11,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-24 01:54:11,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-24 01:54:11,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-24 01:54:11,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-24 01:54:11,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-24 01:54:11,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-24 01:54:11,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-24 01:54:11,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-24 01:54:11,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-24 01:54:11,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-24 01:54:11,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-24 01:54:11,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-24 01:54:11,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-24 01:54:11,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-11-24 01:54:11,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-11-24 01:54:11,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-11-24 01:54:11,019 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-24 01:54:11,019 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-24 01:54:11,019 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2024-11-24 01:54:11,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2024-11-24 01:54:11,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lp_mutex [2024-11-24 01:54:11,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lp_mutex [2024-11-24 01:54:11,019 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2024-11-24 01:54:11,019 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2024-11-24 01:54:11,019 INFO L130 BoogieDeclarations]: Found specification of procedure parport_negotiate [2024-11-24 01:54:11,019 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_negotiate [2024-11-24 01:54:11,019 INFO L130 BoogieDeclarations]: Found specification of procedure parport_release [2024-11-24 01:54:11,019 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_release [2024-11-24 01:54:11,019 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_console [2024-11-24 01:54:11,020 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_console [2024-11-24 01:54:11,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-24 01:54:11,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-24 01:54:11,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-24 01:54:11,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-24 01:54:11,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-24 01:54:11,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-24 01:54:11,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-24 01:54:11,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-24 01:54:11,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-24 01:54:11,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-24 01:54:11,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-24 01:54:11,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-24 01:54:11,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-24 01:54:11,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-24 01:54:11,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-11-24 01:54:11,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-11-24 01:54:11,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-11-24 01:54:11,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-11-24 01:54:11,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-11-24 01:54:11,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-11-24 01:54:11,025 INFO L130 BoogieDeclarations]: Found specification of procedure parport_set_timeout [2024-11-24 01:54:11,025 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_set_timeout [2024-11-24 01:54:11,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 01:54:11,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 01:54:11,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 01:54:11,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 01:54:11,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 01:54:11,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 01:54:11,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 01:54:11,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-24 01:54:11,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-24 01:54:11,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-24 01:54:11,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-24 01:54:11,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-24 01:54:11,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-24 01:54:11,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-24 01:54:11,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-24 01:54:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-24 01:54:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-24 01:54:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-24 01:54:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-24 01:54:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-24 01:54:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim_or_block [2024-11-24 01:54:11,028 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim_or_block [2024-11-24 01:54:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure lp_do_ioctl [2024-11-24 01:54:11,028 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_do_ioctl [2024-11-24 01:54:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2024-11-24 01:54:11,028 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2024-11-24 01:54:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 01:54:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 01:54:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 01:54:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 01:54:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 01:54:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 01:54:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 01:54:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-24 01:54:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-24 01:54:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-24 01:54:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-24 01:54:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-24 01:54:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-24 01:54:11,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-24 01:54:11,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-24 01:54:11,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-24 01:54:11,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-24 01:54:11,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-24 01:54:11,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-24 01:54:11,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-24 01:54:11,032 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-11-24 01:54:11,032 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-11-24 01:54:11,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-24 01:54:11,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-24 01:54:11,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-24 01:54:11,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-24 01:54:11,032 INFO L130 BoogieDeclarations]: Found specification of procedure lp_claim_parport_or_block [2024-11-24 01:54:11,032 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_claim_parport_or_block [2024-11-24 01:54:11,032 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2024-11-24 01:54:11,033 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2024-11-24 01:54:11,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 01:54:11,033 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-11-24 01:54:11,033 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-11-24 01:54:11,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-24 01:54:11,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-24 01:54:11,033 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-11-24 01:54:11,033 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-11-24 01:54:11,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:54:11,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-24 01:54:11,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-24 01:54:11,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 01:54:11,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 01:54:11,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 01:54:11,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 01:54:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 01:54:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-24 01:54:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-24 01:54:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-24 01:54:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-24 01:54:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-24 01:54:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-24 01:54:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-24 01:54:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-24 01:54:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-24 01:54:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-24 01:54:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-24 01:54:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-24 01:54:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-11-24 01:54:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-11-24 01:54:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-11-24 01:54:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2024-11-24 01:54:11,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __bad_percpu_size [2024-11-24 01:54:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure lp_detach [2024-11-24 01:54:11,034 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_detach [2024-11-24 01:54:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lp_mutex [2024-11-24 01:54:11,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lp_mutex [2024-11-24 01:54:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-24 01:54:11,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-24 01:54:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure lp_negotiate [2024-11-24 01:54:11,035 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_negotiate [2024-11-24 01:54:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2024-11-24 01:54:11,035 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2024-11-24 01:54:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2024-11-24 01:54:11,035 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2024-11-24 01:54:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure lp_wait_ready [2024-11-24 01:54:11,035 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_wait_ready [2024-11-24 01:54:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2024-11-24 01:54:11,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2024-11-24 01:54:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2024-11-24 01:54:11,035 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2024-11-24 01:54:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:54:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:54:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 01:54:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 01:54:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 01:54:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 01:54:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 01:54:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-24 01:54:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-24 01:54:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-24 01:54:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-24 01:54:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-24 01:54:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-24 01:54:11,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-24 01:54:11,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-24 01:54:11,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-24 01:54:11,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-24 01:54:11,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-24 01:54:11,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-24 01:54:11,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-24 01:54:11,038 INFO L130 BoogieDeclarations]: Found specification of procedure lp_write [2024-11-24 01:54:11,038 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_write [2024-11-24 01:54:11,038 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2024-11-24 01:54:11,038 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2024-11-24 01:54:11,039 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2024-11-24 01:54:11,039 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2024-11-24 01:54:11,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:54:11,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:54:11,039 INFO L130 BoogieDeclarations]: Found specification of procedure parport_yield_blocking [2024-11-24 01:54:11,040 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_yield_blocking [2024-11-24 01:54:11,040 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-24 01:54:11,040 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-24 01:54:11,755 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:54:11,758 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:54:11,939 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-24 01:54:20,748 INFO L? ?]: Removed 1071 outVars from TransFormulas that were not future-live. [2024-11-24 01:54:20,748 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:54:20,777 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:54:20,778 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 01:54:20,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:54:20 BoogieIcfgContainer [2024-11-24 01:54:20,778 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:54:20,780 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:54:20,780 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:54:20,785 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:54:20,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:54:08" (1/3) ... [2024-11-24 01:54:20,791 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638029c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:54:20, skipping insertion in model container [2024-11-24 01:54:20,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:10" (2/3) ... [2024-11-24 01:54:20,791 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638029c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:54:20, skipping insertion in model container [2024-11-24 01:54:20,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:54:20" (3/3) ... [2024-11-24 01:54:20,793 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2024-11-24 01:54:20,817 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:54:20,818 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i that has 58 procedures, 994 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:54:20,926 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:54:20,944 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;@4a7983e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:54:20,945 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:54:20,955 INFO L276 IsEmpty]: Start isEmpty. Operand has 993 states, 730 states have (on average 1.3821917808219177) internal successors, (1009), 754 states have internal predecessors, (1009), 205 states have call successors, (205), 57 states have call predecessors, (205), 56 states have return successors, (200), 200 states have call predecessors, (200), 200 states have call successors, (200) [2024-11-24 01:54:20,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-24 01:54:20,976 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:54:20,977 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:54:20,977 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:54:20,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:54:20,984 INFO L85 PathProgramCache]: Analyzing trace with hash 513490188, now seen corresponding path program 1 times [2024-11-24 01:54:20,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:54:20,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248629947] [2024-11-24 01:54:20,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:20,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:54:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:23,628 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-24 01:54:23,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:54:23,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248629947] [2024-11-24 01:54:23,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248629947] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:54:23,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832988926] [2024-11-24 01:54:23,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:23,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:54:23,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:54:23,636 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:54:23,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:54:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:26,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 3610 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:54:26,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:54:26,193 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2024-11-24 01:54:26,193 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:54:26,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832988926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:54:26,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:54:26,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:54:26,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846484505] [2024-11-24 01:54:26,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:54:26,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:54:26,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:54:26,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:54:26,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:54:26,232 INFO L87 Difference]: Start difference. First operand has 993 states, 730 states have (on average 1.3821917808219177) internal successors, (1009), 754 states have internal predecessors, (1009), 205 states have call successors, (205), 57 states have call predecessors, (205), 56 states have return successors, (200), 200 states have call predecessors, (200), 200 states have call successors, (200) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-24 01:54:26,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:54:26,429 INFO L93 Difference]: Finished difference Result 1981 states and 2857 transitions. [2024-11-24 01:54:26,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:54:26,431 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 180 [2024-11-24 01:54:26,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:54:26,459 INFO L225 Difference]: With dead ends: 1981 [2024-11-24 01:54:26,459 INFO L226 Difference]: Without dead ends: 981 [2024-11-24 01:54:26,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:54:26,479 INFO L435 NwaCegarLoop]: 1397 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1397 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 [2024-11-24 01:54:26,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:54:26,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2024-11-24 01:54:26,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 981. [2024-11-24 01:54:26,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 725 states have (on average 1.3668965517241378) internal successors, (991), 742 states have internal predecessors, (991), 200 states have call successors, (200), 56 states have call predecessors, (200), 55 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) [2024-11-24 01:54:26,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1382 transitions. [2024-11-24 01:54:26,646 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1382 transitions. Word has length 180 [2024-11-24 01:54:26,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:54:26,646 INFO L471 AbstractCegarLoop]: Abstraction has 981 states and 1382 transitions. [2024-11-24 01:54:26,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-24 01:54:26,647 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1382 transitions. [2024-11-24 01:54:26,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-24 01:54:26,658 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:54:26,658 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:54:26,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:54:26,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:54:26,859 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:54:26,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:54:26,860 INFO L85 PathProgramCache]: Analyzing trace with hash -896238312, now seen corresponding path program 1 times [2024-11-24 01:54:26,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:54:26,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293705042] [2024-11-24 01:54:26,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:26,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:54:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:28,985 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-24 01:54:28,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:54:28,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293705042] [2024-11-24 01:54:28,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293705042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:54:28,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:54:28,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:54:28,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808325312] [2024-11-24 01:54:28,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:54:28,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:54:28,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:54:28,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:54:28,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:54:28,991 INFO L87 Difference]: Start difference. First operand 981 states and 1382 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:54:29,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:54:29,345 INFO L93 Difference]: Finished difference Result 2866 states and 4039 transitions. [2024-11-24 01:54:29,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:54:29,347 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 180 [2024-11-24 01:54:29,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:54:29,372 INFO L225 Difference]: With dead ends: 2866 [2024-11-24 01:54:29,374 INFO L226 Difference]: Without dead ends: 1923 [2024-11-24 01:54:29,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:54:29,425 INFO L435 NwaCegarLoop]: 1446 mSDtfsCounter, 1336 mSDsluCounter, 2765 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 4211 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:54:29,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1336 Valid, 4211 Invalid, 26 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:54:29,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1923 states. [2024-11-24 01:54:29,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1923 to 1905. [2024-11-24 01:54:29,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1905 states, 1419 states have (on average 1.3706835799859056) internal successors, (1945), 1446 states have internal predecessors, (1945), 376 states have call successors, (376), 110 states have call predecessors, (376), 109 states have return successors, (367), 366 states have call predecessors, (367), 367 states have call successors, (367) [2024-11-24 01:54:29,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2688 transitions. [2024-11-24 01:54:29,593 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2688 transitions. Word has length 180 [2024-11-24 01:54:29,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:54:29,595 INFO L471 AbstractCegarLoop]: Abstraction has 1905 states and 2688 transitions. [2024-11-24 01:54:29,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:54:29,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2688 transitions. [2024-11-24 01:54:29,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-24 01:54:29,601 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:54:29,602 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:54:29,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:54:29,602 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:54:29,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:54:29,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1400690651, now seen corresponding path program 1 times [2024-11-24 01:54:29,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:54:29,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276488699] [2024-11-24 01:54:29,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:29,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:54:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:30,912 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-24 01:54:30,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:54:30,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276488699] [2024-11-24 01:54:30,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276488699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:54:30,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:54:30,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:54:30,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143903830] [2024-11-24 01:54:30,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:54:30,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:54:30,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:54:30,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:54:30,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:54:30,915 INFO L87 Difference]: Start difference. First operand 1905 states and 2688 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:54:31,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:54:31,000 INFO L93 Difference]: Finished difference Result 1907 states and 2689 transitions. [2024-11-24 01:54:31,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:54:31,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 181 [2024-11-24 01:54:31,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:54:31,022 INFO L225 Difference]: With dead ends: 1907 [2024-11-24 01:54:31,022 INFO L226 Difference]: Without dead ends: 1904 [2024-11-24 01:54:31,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:54:31,025 INFO L435 NwaCegarLoop]: 1379 mSDtfsCounter, 1331 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 1379 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 [2024-11-24 01:54:31,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1331 Valid, 1379 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:54:31,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1904 states. [2024-11-24 01:54:31,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1904 to 1904. [2024-11-24 01:54:31,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1904 states, 1419 states have (on average 1.3699788583509513) internal successors, (1944), 1445 states have internal predecessors, (1944), 375 states have call successors, (375), 110 states have call predecessors, (375), 109 states have return successors, (367), 366 states have call predecessors, (367), 367 states have call successors, (367) [2024-11-24 01:54:31,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1904 states to 1904 states and 2686 transitions. [2024-11-24 01:54:31,282 INFO L78 Accepts]: Start accepts. Automaton has 1904 states and 2686 transitions. Word has length 181 [2024-11-24 01:54:31,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:54:31,285 INFO L471 AbstractCegarLoop]: Abstraction has 1904 states and 2686 transitions. [2024-11-24 01:54:31,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:54:31,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1904 states and 2686 transitions. [2024-11-24 01:54:31,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-24 01:54:31,288 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:54:31,288 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:54:31,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:54:31,288 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:54:31,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:54:31,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1581270733, now seen corresponding path program 1 times [2024-11-24 01:54:31,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:54:31,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977539630] [2024-11-24 01:54:31,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:31,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:54:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:32,701 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-24 01:54:32,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:54:32,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977539630] [2024-11-24 01:54:32,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977539630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:54:32,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:54:32,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:54:32,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070212782] [2024-11-24 01:54:32,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:54:32,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:54:32,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:54:32,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:54:32,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:54:32,703 INFO L87 Difference]: Start difference. First operand 1904 states and 2686 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:54:33,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:54:33,006 INFO L93 Difference]: Finished difference Result 4313 states and 6033 transitions. [2024-11-24 01:54:33,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:54:33,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 184 [2024-11-24 01:54:33,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:54:33,022 INFO L225 Difference]: With dead ends: 4313 [2024-11-24 01:54:33,022 INFO L226 Difference]: Without dead ends: 2447 [2024-11-24 01:54:33,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:54:33,030 INFO L435 NwaCegarLoop]: 1379 mSDtfsCounter, 430 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 2657 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:54:33,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 2657 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:54:33,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2447 states. [2024-11-24 01:54:33,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2447 to 2386. [2024-11-24 01:54:33,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2386 states, 1787 states have (on average 1.3687744823726917) internal successors, (2446), 1817 states have internal predecessors, (2446), 444 states have call successors, (444), 155 states have call predecessors, (444), 154 states have return successors, (436), 433 states have call predecessors, (436), 436 states have call successors, (436) [2024-11-24 01:54:33,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2386 states to 2386 states and 3326 transitions. [2024-11-24 01:54:33,189 INFO L78 Accepts]: Start accepts. Automaton has 2386 states and 3326 transitions. Word has length 184 [2024-11-24 01:54:33,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:54:33,191 INFO L471 AbstractCegarLoop]: Abstraction has 2386 states and 3326 transitions. [2024-11-24 01:54:33,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:54:33,191 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states and 3326 transitions. [2024-11-24 01:54:33,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-24 01:54:33,198 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:54:33,198 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:54:33,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:54:33,199 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:54:33,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:54:33,199 INFO L85 PathProgramCache]: Analyzing trace with hash -471997123, now seen corresponding path program 1 times [2024-11-24 01:54:33,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:54:33,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660417206] [2024-11-24 01:54:33,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:33,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:54:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:34,595 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-24 01:54:34,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:54:34,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660417206] [2024-11-24 01:54:34,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660417206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:54:34,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:54:34,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:54:34,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046990369] [2024-11-24 01:54:34,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:54:34,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:54:34,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:54:34,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:54:34,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:54:34,600 INFO L87 Difference]: Start difference. First operand 2386 states and 3326 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:54:34,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:54:34,722 INFO L93 Difference]: Finished difference Result 2388 states and 3327 transitions. [2024-11-24 01:54:34,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:54:34,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 182 [2024-11-24 01:54:34,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:54:34,738 INFO L225 Difference]: With dead ends: 2388 [2024-11-24 01:54:34,738 INFO L226 Difference]: Without dead ends: 2385 [2024-11-24 01:54:34,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:54:34,741 INFO L435 NwaCegarLoop]: 1377 mSDtfsCounter, 1328 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 1377 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 [2024-11-24 01:54:34,742 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1328 Valid, 1377 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:54:34,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2024-11-24 01:54:34,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 2385. [2024-11-24 01:54:34,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2385 states, 1787 states have (on average 1.3682148852825966) internal successors, (2445), 1816 states have internal predecessors, (2445), 443 states have call successors, (443), 155 states have call predecessors, (443), 154 states have return successors, (436), 433 states have call predecessors, (436), 436 states have call successors, (436) [2024-11-24 01:54:34,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 3324 transitions. [2024-11-24 01:54:34,898 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 3324 transitions. Word has length 182 [2024-11-24 01:54:34,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:54:34,899 INFO L471 AbstractCegarLoop]: Abstraction has 2385 states and 3324 transitions. [2024-11-24 01:54:34,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:54:34,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 3324 transitions. [2024-11-24 01:54:34,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-24 01:54:34,902 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:54:34,903 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:54:34,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:54:34,903 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:54:34,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:54:34,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1747263960, now seen corresponding path program 1 times [2024-11-24 01:54:34,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:54:34,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59669290] [2024-11-24 01:54:34,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:34,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:54:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:36,403 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-24 01:54:36,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:54:36,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59669290] [2024-11-24 01:54:36,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59669290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:54:36,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:54:36,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:54:36,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931234762] [2024-11-24 01:54:36,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:54:36,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:54:36,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:54:36,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:54:36,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:54:36,406 INFO L87 Difference]: Start difference. First operand 2385 states and 3324 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:54:36,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:54:36,543 INFO L93 Difference]: Finished difference Result 2637 states and 3578 transitions. [2024-11-24 01:54:36,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:54:36,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 183 [2024-11-24 01:54:36,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:54:36,560 INFO L225 Difference]: With dead ends: 2637 [2024-11-24 01:54:36,560 INFO L226 Difference]: Without dead ends: 2633 [2024-11-24 01:54:36,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:54:36,563 INFO L435 NwaCegarLoop]: 1384 mSDtfsCounter, 1016 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:54:36,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1016 Valid, 1815 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:54:36,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2024-11-24 01:54:36,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 2629. [2024-11-24 01:54:36,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2629 states, 1949 states have (on average 1.344279117496152) internal successors, (2620), 1976 states have internal predecessors, (2620), 477 states have call successors, (477), 203 states have call predecessors, (477), 202 states have return successors, (472), 469 states have call predecessors, (472), 472 states have call successors, (472) [2024-11-24 01:54:36,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2629 states to 2629 states and 3569 transitions. [2024-11-24 01:54:36,727 INFO L78 Accepts]: Start accepts. Automaton has 2629 states and 3569 transitions. Word has length 183 [2024-11-24 01:54:36,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:54:36,728 INFO L471 AbstractCegarLoop]: Abstraction has 2629 states and 3569 transitions. [2024-11-24 01:54:36,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:54:36,728 INFO L276 IsEmpty]: Start isEmpty. Operand 2629 states and 3569 transitions. [2024-11-24 01:54:36,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-24 01:54:36,731 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:54:36,731 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:54:36,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:54:36,731 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:54:36,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:54:36,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1669141920, now seen corresponding path program 1 times [2024-11-24 01:54:36,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:54:36,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495155685] [2024-11-24 01:54:36,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:36,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:54:38,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:38,598 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-24 01:54:38,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:54:38,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495155685] [2024-11-24 01:54:38,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495155685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:54:38,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:54:38,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:54:38,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274949023] [2024-11-24 01:54:38,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:54:38,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:54:38,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:54:38,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:54:38,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:54:38,600 INFO L87 Difference]: Start difference. First operand 2629 states and 3569 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 01:54:39,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:54:39,017 INFO L93 Difference]: Finished difference Result 5243 states and 7115 transitions. [2024-11-24 01:54:39,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:54:39,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 184 [2024-11-24 01:54:39,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:54:39,039 INFO L225 Difference]: With dead ends: 5243 [2024-11-24 01:54:39,039 INFO L226 Difference]: Without dead ends: 2652 [2024-11-24 01:54:39,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:54:39,046 INFO L435 NwaCegarLoop]: 1371 mSDtfsCounter, 1370 mSDsluCounter, 2745 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 4116 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:54:39,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 4116 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:54:39,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2652 states. [2024-11-24 01:54:39,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2652 to 2642. [2024-11-24 01:54:39,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2642 states, 1962 states have (on average 1.3419979612640163) internal successors, (2633), 1989 states have internal predecessors, (2633), 477 states have call successors, (477), 203 states have call predecessors, (477), 202 states have return successors, (472), 469 states have call predecessors, (472), 472 states have call successors, (472) [2024-11-24 01:54:39,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2642 states to 2642 states and 3582 transitions. [2024-11-24 01:54:39,227 INFO L78 Accepts]: Start accepts. Automaton has 2642 states and 3582 transitions. Word has length 184 [2024-11-24 01:54:39,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:54:39,228 INFO L471 AbstractCegarLoop]: Abstraction has 2642 states and 3582 transitions. [2024-11-24 01:54:39,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 01:54:39,228 INFO L276 IsEmpty]: Start isEmpty. Operand 2642 states and 3582 transitions. [2024-11-24 01:54:39,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-24 01:54:39,232 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:54:39,232 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:54:39,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:54:39,232 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:54:39,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:54:39,233 INFO L85 PathProgramCache]: Analyzing trace with hash -16251786, now seen corresponding path program 1 times [2024-11-24 01:54:39,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:54:39,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926873881] [2024-11-24 01:54:39,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:39,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:54:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:40,521 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-24 01:54:40,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:54:40,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926873881] [2024-11-24 01:54:40,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926873881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:54:40,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:54:40,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:54:40,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842830281] [2024-11-24 01:54:40,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:54:40,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:54:40,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:54:40,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:54:40,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:54:40,523 INFO L87 Difference]: Start difference. First operand 2642 states and 3582 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:54:44,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:54:44,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:54:44,989 INFO L93 Difference]: Finished difference Result 7617 states and 10327 transitions. [2024-11-24 01:54:44,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:54:44,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 194 [2024-11-24 01:54:44,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:54:45,022 INFO L225 Difference]: With dead ends: 7617 [2024-11-24 01:54:45,022 INFO L226 Difference]: Without dead ends: 5013 [2024-11-24 01:54:45,032 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:54:45,033 INFO L435 NwaCegarLoop]: 1391 mSDtfsCounter, 1275 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1275 SdHoareTripleChecker+Valid, 2675 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 [2024-11-24 01:54:45,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1275 Valid, 2675 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-24 01:54:45,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5013 states. [2024-11-24 01:54:45,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5013 to 5001. [2024-11-24 01:54:45,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5001 states, 3715 states have (on average 1.3448183041722745) internal successors, (4996), 3760 states have internal predecessors, (4996), 892 states have call successors, (892), 394 states have call predecessors, (892), 393 states have return successors, (887), 884 states have call predecessors, (887), 887 states have call successors, (887) [2024-11-24 01:54:45,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5001 states to 5001 states and 6775 transitions. [2024-11-24 01:54:45,432 INFO L78 Accepts]: Start accepts. Automaton has 5001 states and 6775 transitions. Word has length 194 [2024-11-24 01:54:45,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:54:45,433 INFO L471 AbstractCegarLoop]: Abstraction has 5001 states and 6775 transitions. [2024-11-24 01:54:45,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:54:45,437 INFO L276 IsEmpty]: Start isEmpty. Operand 5001 states and 6775 transitions. [2024-11-24 01:54:45,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-24 01:54:45,440 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:54:45,444 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:54:45,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:54:45,444 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:54:45,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:54:45,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1398527250, now seen corresponding path program 1 times [2024-11-24 01:54:45,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:54:45,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788121788] [2024-11-24 01:54:45,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:45,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:54:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:46,835 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-24 01:54:46,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:54:46,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788121788] [2024-11-24 01:54:46,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788121788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:54:46,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:54:46,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:54:46,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635610877] [2024-11-24 01:54:46,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:54:46,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:54:46,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:54:46,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:54:46,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:54:46,840 INFO L87 Difference]: Start difference. First operand 5001 states and 6775 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:54:47,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:54:47,083 INFO L93 Difference]: Finished difference Result 5003 states and 6776 transitions. [2024-11-24 01:54:47,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:54:47,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 193 [2024-11-24 01:54:47,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:54:47,113 INFO L225 Difference]: With dead ends: 5003 [2024-11-24 01:54:47,113 INFO L226 Difference]: Without dead ends: 5000 [2024-11-24 01:54:47,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:54:47,118 INFO L435 NwaCegarLoop]: 1371 mSDtfsCounter, 1314 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 1371 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 [2024-11-24 01:54:47,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 1371 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:54:47,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5000 states. [2024-11-24 01:54:47,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5000 to 5000. [2024-11-24 01:54:47,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5000 states, 3715 states have (on average 1.3445491251682369) internal successors, (4995), 3759 states have internal predecessors, (4995), 891 states have call successors, (891), 394 states have call predecessors, (891), 393 states have return successors, (887), 884 states have call predecessors, (887), 887 states have call successors, (887) [2024-11-24 01:54:47,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5000 states to 5000 states and 6773 transitions. [2024-11-24 01:54:47,468 INFO L78 Accepts]: Start accepts. Automaton has 5000 states and 6773 transitions. Word has length 193 [2024-11-24 01:54:47,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:54:47,469 INFO L471 AbstractCegarLoop]: Abstraction has 5000 states and 6773 transitions. [2024-11-24 01:54:47,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:54:47,469 INFO L276 IsEmpty]: Start isEmpty. Operand 5000 states and 6773 transitions. [2024-11-24 01:54:47,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-24 01:54:47,472 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:54:47,472 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:54:47,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:54:47,473 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:54:47,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:54:47,474 INFO L85 PathProgramCache]: Analyzing trace with hash 404426489, now seen corresponding path program 1 times [2024-11-24 01:54:47,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:54:47,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878598239] [2024-11-24 01:54:47,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:47,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:54:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:48,666 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-24 01:54:48,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:54:48,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878598239] [2024-11-24 01:54:48,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878598239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:54:48,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:54:48,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:54:48,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649642355] [2024-11-24 01:54:48,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:54:48,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:54:48,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:54:48,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:54:48,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:54:48,668 INFO L87 Difference]: Start difference. First operand 5000 states and 6773 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:54:49,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:54:49,466 INFO L93 Difference]: Finished difference Result 14802 states and 20163 transitions. [2024-11-24 01:54:49,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:54:49,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 194 [2024-11-24 01:54:49,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:54:49,529 INFO L225 Difference]: With dead ends: 14802 [2024-11-24 01:54:49,529 INFO L226 Difference]: Without dead ends: 9803 [2024-11-24 01:54:49,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:54:49,552 INFO L435 NwaCegarLoop]: 1758 mSDtfsCounter, 1313 mSDsluCounter, 1289 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1313 SdHoareTripleChecker+Valid, 3047 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:54:49,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1313 Valid, 3047 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:54:49,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9803 states. [2024-11-24 01:54:50,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9803 to 9761. [2024-11-24 01:54:50,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9761 states, 7273 states have (on average 1.3460745222054173) internal successors, (9790), 7363 states have internal predecessors, (9790), 1724 states have call successors, (1724), 765 states have call predecessors, (1724), 763 states have return successors, (1773), 1705 states have call predecessors, (1773), 1717 states have call successors, (1773) [2024-11-24 01:54:50,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9761 states to 9761 states and 13287 transitions. [2024-11-24 01:54:50,248 INFO L78 Accepts]: Start accepts. Automaton has 9761 states and 13287 transitions. Word has length 194 [2024-11-24 01:54:50,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:54:50,248 INFO L471 AbstractCegarLoop]: Abstraction has 9761 states and 13287 transitions. [2024-11-24 01:54:50,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:54:50,249 INFO L276 IsEmpty]: Start isEmpty. Operand 9761 states and 13287 transitions. [2024-11-24 01:54:50,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-24 01:54:50,259 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:54:50,260 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:54:50,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:54:50,261 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:54:50,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:54:50,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1396473360, now seen corresponding path program 1 times [2024-11-24 01:54:50,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:54:50,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361236682] [2024-11-24 01:54:50,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:50,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:54:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:52,203 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2024-11-24 01:54:52,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:54:52,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361236682] [2024-11-24 01:54:52,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361236682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:54:52,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:54:52,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:54:52,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785902409] [2024-11-24 01:54:52,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:54:52,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:54:52,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:54:52,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:54:52,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:54:52,207 INFO L87 Difference]: Start difference. First operand 9761 states and 13287 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:54:53,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:54:53,165 INFO L93 Difference]: Finished difference Result 19508 states and 26557 transitions. [2024-11-24 01:54:53,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:54:53,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 254 [2024-11-24 01:54:53,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:54:53,219 INFO L225 Difference]: With dead ends: 19508 [2024-11-24 01:54:53,220 INFO L226 Difference]: Without dead ends: 9785 [2024-11-24 01:54:53,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:54:53,250 INFO L435 NwaCegarLoop]: 1368 mSDtfsCounter, 3 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2732 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:54:53,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2732 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:54:53,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9785 states. [2024-11-24 01:54:53,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9785 to 9765. [2024-11-24 01:54:53,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9765 states, 7277 states have (on average 1.3458842929778756) internal successors, (9794), 7367 states have internal predecessors, (9794), 1724 states have call successors, (1724), 765 states have call predecessors, (1724), 763 states have return successors, (1773), 1705 states have call predecessors, (1773), 1717 states have call successors, (1773) [2024-11-24 01:54:54,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9765 states to 9765 states and 13291 transitions. [2024-11-24 01:54:54,024 INFO L78 Accepts]: Start accepts. Automaton has 9765 states and 13291 transitions. Word has length 254 [2024-11-24 01:54:54,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:54:54,025 INFO L471 AbstractCegarLoop]: Abstraction has 9765 states and 13291 transitions. [2024-11-24 01:54:54,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:54:54,026 INFO L276 IsEmpty]: Start isEmpty. Operand 9765 states and 13291 transitions. [2024-11-24 01:54:54,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-11-24 01:54:54,038 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:54:54,038 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:54:54,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:54:54,039 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:54:54,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:54:54,040 INFO L85 PathProgramCache]: Analyzing trace with hash -45216279, now seen corresponding path program 1 times [2024-11-24 01:54:54,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:54:54,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408329374] [2024-11-24 01:54:54,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:54,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:54:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:55,587 INFO L134 CoverageAnalysis]: Checked inductivity of 579 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2024-11-24 01:54:55,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:54:55,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408329374] [2024-11-24 01:54:55,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408329374] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:54:55,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402625955] [2024-11-24 01:54:55,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:55,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:54:55,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:54:55,592 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:54:55,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:54:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:58,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 4151 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:54:58,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:54:58,096 INFO L134 CoverageAnalysis]: Checked inductivity of 579 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2024-11-24 01:54:58,096 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:54:58,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402625955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:54:58,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:54:58,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-24 01:54:58,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491221305] [2024-11-24 01:54:58,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:54:58,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:54:58,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:54:58,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:54:58,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:54:58,098 INFO L87 Difference]: Start difference. First operand 9765 states and 13291 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-24 01:55:02,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:55:02,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:02,745 INFO L93 Difference]: Finished difference Result 15228 states and 20652 transitions. [2024-11-24 01:55:02,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:55:02,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 266 [2024-11-24 01:55:02,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:02,786 INFO L225 Difference]: With dead ends: 15228 [2024-11-24 01:55:02,786 INFO L226 Difference]: Without dead ends: 5497 [2024-11-24 01:55:02,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:55:02,822 INFO L435 NwaCegarLoop]: 1372 mSDtfsCounter, 9 mSDsluCounter, 1366 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2738 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:02,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2738 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-24 01:55:02,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5497 states. [2024-11-24 01:55:03,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5497 to 5476. [2024-11-24 01:55:03,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5476 states, 4067 states have (on average 1.3358741086796164) internal successors, (5433), 4118 states have internal predecessors, (5433), 964 states have call successors, (964), 446 states have call predecessors, (964), 444 states have return successors, (985), 951 states have call predecessors, (985), 957 states have call successors, (985) [2024-11-24 01:55:03,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5476 states to 5476 states and 7382 transitions. [2024-11-24 01:55:03,351 INFO L78 Accepts]: Start accepts. Automaton has 5476 states and 7382 transitions. Word has length 266 [2024-11-24 01:55:03,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:03,353 INFO L471 AbstractCegarLoop]: Abstraction has 5476 states and 7382 transitions. [2024-11-24 01:55:03,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-24 01:55:03,353 INFO L276 IsEmpty]: Start isEmpty. Operand 5476 states and 7382 transitions. [2024-11-24 01:55:03,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-24 01:55:03,363 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:03,365 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:03,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:55:03,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-24 01:55:03,566 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:03,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:03,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1140239173, now seen corresponding path program 1 times [2024-11-24 01:55:03,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:03,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704863392] [2024-11-24 01:55:03,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:03,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:05,227 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2024-11-24 01:55:05,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:05,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704863392] [2024-11-24 01:55:05,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704863392] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:55:05,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229498041] [2024-11-24 01:55:05,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:05,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:55:05,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:55:05,230 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:55:05,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:55:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:07,499 INFO L256 TraceCheckSpWp]: Trace formula consists of 4231 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:55:07,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:55:07,599 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 255 proven. 1 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-24 01:55:07,599 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:55:08,345 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2024-11-24 01:55:08,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229498041] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:55:08,345 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:55:08,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-24 01:55:08,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378360445] [2024-11-24 01:55:08,346 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:55:08,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:55:08,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:08,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:55:08,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:55:08,348 INFO L87 Difference]: Start difference. First operand 5476 states and 7382 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 5 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 5 states have call predecessors, (39), 5 states have call successors, (39) [2024-11-24 01:55:09,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:09,161 INFO L93 Difference]: Finished difference Result 10775 states and 14540 transitions. [2024-11-24 01:55:09,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:55:09,162 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 5 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 5 states have call predecessors, (39), 5 states have call successors, (39) Word has length 283 [2024-11-24 01:55:09,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:09,190 INFO L225 Difference]: With dead ends: 10775 [2024-11-24 01:55:09,190 INFO L226 Difference]: Without dead ends: 5548 [2024-11-24 01:55:09,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 563 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:55:09,202 INFO L435 NwaCegarLoop]: 1368 mSDtfsCounter, 6 mSDsluCounter, 2724 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4092 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:09,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 4092 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:55:09,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5548 states. [2024-11-24 01:55:09,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5548 to 5548. [2024-11-24 01:55:09,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5548 states, 4115 states have (on average 1.3319562575941677) internal successors, (5481), 4166 states have internal predecessors, (5481), 988 states have call successors, (988), 446 states have call predecessors, (988), 444 states have return successors, (1009), 975 states have call predecessors, (1009), 981 states have call successors, (1009) [2024-11-24 01:55:09,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5548 states to 5548 states and 7478 transitions. [2024-11-24 01:55:09,511 INFO L78 Accepts]: Start accepts. Automaton has 5548 states and 7478 transitions. Word has length 283 [2024-11-24 01:55:09,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:09,511 INFO L471 AbstractCegarLoop]: Abstraction has 5548 states and 7478 transitions. [2024-11-24 01:55:09,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 5 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 5 states have call predecessors, (39), 5 states have call successors, (39) [2024-11-24 01:55:09,512 INFO L276 IsEmpty]: Start isEmpty. Operand 5548 states and 7478 transitions. [2024-11-24 01:55:09,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-11-24 01:55:09,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:09,523 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:09,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 01:55:09,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-24 01:55:09,723 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:09,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:09,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1660818502, now seen corresponding path program 2 times [2024-11-24 01:55:09,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:09,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464328808] [2024-11-24 01:55:09,725 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:55:09,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:10,693 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:55:10,693 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:55:10,903 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2024-11-24 01:55:10,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:10,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464328808] [2024-11-24 01:55:10,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464328808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:55:10,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:55:10,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:55:10,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507057344] [2024-11-24 01:55:10,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:55:10,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:55:10,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:10,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:55:10,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:55:10,904 INFO L87 Difference]: Start difference. First operand 5548 states and 7478 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-24 01:55:14,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:55:15,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:15,243 INFO L93 Difference]: Finished difference Result 5556 states and 7484 transitions. [2024-11-24 01:55:15,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:55:15,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 319 [2024-11-24 01:55:15,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:15,277 INFO L225 Difference]: With dead ends: 5556 [2024-11-24 01:55:15,277 INFO L226 Difference]: Without dead ends: 5553 [2024-11-24 01:55:15,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:55:15,282 INFO L435 NwaCegarLoop]: 1485 mSDtfsCounter, 423 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 2547 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:15,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 2547 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-24 01:55:15,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5553 states. [2024-11-24 01:55:15,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5553 to 5547. [2024-11-24 01:55:15,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5547 states, 4115 states have (on average 1.3309842041312272) internal successors, (5477), 4165 states have internal predecessors, (5477), 987 states have call successors, (987), 446 states have call predecessors, (987), 444 states have return successors, (1009), 975 states have call predecessors, (1009), 981 states have call successors, (1009) [2024-11-24 01:55:15,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5547 states to 5547 states and 7473 transitions. [2024-11-24 01:55:15,618 INFO L78 Accepts]: Start accepts. Automaton has 5547 states and 7473 transitions. Word has length 319 [2024-11-24 01:55:15,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:15,619 INFO L471 AbstractCegarLoop]: Abstraction has 5547 states and 7473 transitions. [2024-11-24 01:55:15,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-24 01:55:15,620 INFO L276 IsEmpty]: Start isEmpty. Operand 5547 states and 7473 transitions. [2024-11-24 01:55:15,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-11-24 01:55:15,719 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:15,719 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:15,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:55:15,720 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:15,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:15,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1217805243, now seen corresponding path program 1 times [2024-11-24 01:55:15,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:15,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817296199] [2024-11-24 01:55:15,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:15,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:17,664 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2024-11-24 01:55:17,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:17,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817296199] [2024-11-24 01:55:17,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817296199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:55:17,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:55:17,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:55:17,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211838626] [2024-11-24 01:55:17,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:55:17,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:55:17,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:17,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:55:17,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:55:17,666 INFO L87 Difference]: Start difference. First operand 5547 states and 7473 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 01:55:21,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:55:22,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:22,059 INFO L93 Difference]: Finished difference Result 10847 states and 14619 transitions. [2024-11-24 01:55:22,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:55:22,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 352 [2024-11-24 01:55:22,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:22,091 INFO L225 Difference]: With dead ends: 10847 [2024-11-24 01:55:22,091 INFO L226 Difference]: Without dead ends: 5549 [2024-11-24 01:55:22,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:55:22,107 INFO L435 NwaCegarLoop]: 2234 mSDtfsCounter, 1278 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 3563 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:22,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1278 Valid, 3563 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-24 01:55:22,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5549 states. [2024-11-24 01:55:22,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5549 to 5500. [2024-11-24 01:55:22,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5500 states, 4076 states have (on average 1.329244357212954) internal successors, (5418), 4128 states have internal predecessors, (5418), 981 states have call successors, (981), 441 states have call predecessors, (981), 442 states have return successors, (982), 970 states have call predecessors, (982), 968 states have call successors, (982) [2024-11-24 01:55:22,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5500 states to 5500 states and 7381 transitions. [2024-11-24 01:55:22,536 INFO L78 Accepts]: Start accepts. Automaton has 5500 states and 7381 transitions. Word has length 352 [2024-11-24 01:55:22,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:22,537 INFO L471 AbstractCegarLoop]: Abstraction has 5500 states and 7381 transitions. [2024-11-24 01:55:22,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 01:55:22,537 INFO L276 IsEmpty]: Start isEmpty. Operand 5500 states and 7381 transitions. [2024-11-24 01:55:22,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-11-24 01:55:22,551 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:22,551 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:22,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:55:22,552 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:22,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:22,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1229121370, now seen corresponding path program 1 times [2024-11-24 01:55:22,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:22,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139707393] [2024-11-24 01:55:22,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:22,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:24,352 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 3 proven. 40 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2024-11-24 01:55:24,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:24,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139707393] [2024-11-24 01:55:24,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139707393] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:55:24,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748439566] [2024-11-24 01:55:24,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:24,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:55:24,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:55:24,354 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:55:24,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:55:26,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:26,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 4916 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 01:55:26,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:55:27,181 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 255 proven. 40 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2024-11-24 01:55:27,182 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:55:28,137 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 3 proven. 40 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2024-11-24 01:55:28,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748439566] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:55:28,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:55:28,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-24 01:55:28,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759755732] [2024-11-24 01:55:28,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:55:28,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:55:28,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:28,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:55:28,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:55:28,139 INFO L87 Difference]: Start difference. First operand 5500 states and 7381 transitions. Second operand has 11 states, 11 states have (on average 16.181818181818183) internal successors, (178), 11 states have internal predecessors, (178), 10 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (59), 10 states have call predecessors, (59), 10 states have call successors, (59) [2024-11-24 01:55:29,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:29,622 INFO L93 Difference]: Finished difference Result 10847 states and 14574 transitions. [2024-11-24 01:55:29,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:55:29,623 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 16.181818181818183) internal successors, (178), 11 states have internal predecessors, (178), 10 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (59), 10 states have call predecessors, (59), 10 states have call successors, (59) Word has length 352 [2024-11-24 01:55:29,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:29,653 INFO L225 Difference]: With dead ends: 10847 [2024-11-24 01:55:29,654 INFO L226 Difference]: Without dead ends: 5596 [2024-11-24 01:55:29,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 709 GetRequests, 698 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:55:29,667 INFO L435 NwaCegarLoop]: 1366 mSDtfsCounter, 3 mSDsluCounter, 5440 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6806 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:29,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6806 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 01:55:29,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5596 states. [2024-11-24 01:55:30,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5596 to 5596. [2024-11-24 01:55:30,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5596 states, 4140 states have (on average 1.3241545893719806) internal successors, (5482), 4192 states have internal predecessors, (5482), 1013 states have call successors, (1013), 441 states have call predecessors, (1013), 442 states have return successors, (1014), 1002 states have call predecessors, (1014), 1000 states have call successors, (1014) [2024-11-24 01:55:30,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5596 states to 5596 states and 7509 transitions. [2024-11-24 01:55:30,145 INFO L78 Accepts]: Start accepts. Automaton has 5596 states and 7509 transitions. Word has length 352 [2024-11-24 01:55:30,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:30,146 INFO L471 AbstractCegarLoop]: Abstraction has 5596 states and 7509 transitions. [2024-11-24 01:55:30,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.181818181818183) internal successors, (178), 11 states have internal predecessors, (178), 10 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (59), 10 states have call predecessors, (59), 10 states have call successors, (59) [2024-11-24 01:55:30,147 INFO L276 IsEmpty]: Start isEmpty. Operand 5596 states and 7509 transitions. [2024-11-24 01:55:30,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2024-11-24 01:55:30,162 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:30,162 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:30,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 01:55:30,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-24 01:55:30,363 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:30,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:30,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1364906690, now seen corresponding path program 2 times [2024-11-24 01:55:30,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:30,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762000292] [2024-11-24 01:55:30,364 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:55:30,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:31,586 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:55:31,587 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:55:32,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1223 trivial. 0 not checked. [2024-11-24 01:55:32,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:32,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762000292] [2024-11-24 01:55:32,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762000292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:55:32,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:55:32,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:55:32,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367311351] [2024-11-24 01:55:32,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:55:32,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:55:32,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:32,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:55:32,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:55:32,018 INFO L87 Difference]: Start difference. First operand 5596 states and 7509 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 01:55:32,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:32,289 INFO L93 Difference]: Finished difference Result 5827 states and 7755 transitions. [2024-11-24 01:55:32,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:55:32,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 400 [2024-11-24 01:55:32,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:32,319 INFO L225 Difference]: With dead ends: 5827 [2024-11-24 01:55:32,320 INFO L226 Difference]: Without dead ends: 5300 [2024-11-24 01:55:32,324 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:55:32,324 INFO L435 NwaCegarLoop]: 1374 mSDtfsCounter, 0 mSDsluCounter, 5482 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6856 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:32,324 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6856 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:55:32,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5300 states. [2024-11-24 01:55:32,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5300 to 5300. [2024-11-24 01:55:32,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5300 states, 3913 states have (on average 1.3158701763352927) internal successors, (5149), 3958 states have internal predecessors, (5149), 950 states have call successors, (950), 435 states have call predecessors, (950), 436 states have return successors, (952), 941 states have call predecessors, (952), 938 states have call successors, (952) [2024-11-24 01:55:32,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5300 states to 5300 states and 7051 transitions. [2024-11-24 01:55:32,713 INFO L78 Accepts]: Start accepts. Automaton has 5300 states and 7051 transitions. Word has length 400 [2024-11-24 01:55:32,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:32,714 INFO L471 AbstractCegarLoop]: Abstraction has 5300 states and 7051 transitions. [2024-11-24 01:55:32,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 01:55:32,715 INFO L276 IsEmpty]: Start isEmpty. Operand 5300 states and 7051 transitions. [2024-11-24 01:55:32,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2024-11-24 01:55:32,726 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:32,727 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:32,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 01:55:32,727 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:32,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:32,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1891674577, now seen corresponding path program 1 times [2024-11-24 01:55:32,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:32,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358848590] [2024-11-24 01:55:32,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:32,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:34,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:34,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1232 trivial. 0 not checked. [2024-11-24 01:55:34,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:34,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358848590] [2024-11-24 01:55:34,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358848590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:55:34,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:55:34,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:55:34,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091876396] [2024-11-24 01:55:34,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:55:34,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:55:34,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:34,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:55:34,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:55:34,810 INFO L87 Difference]: Start difference. First operand 5300 states and 7051 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-24 01:55:35,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:35,155 INFO L93 Difference]: Finished difference Result 7378 states and 9788 transitions. [2024-11-24 01:55:35,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:55:35,156 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 408 [2024-11-24 01:55:35,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:35,180 INFO L225 Difference]: With dead ends: 7378 [2024-11-24 01:55:35,180 INFO L226 Difference]: Without dead ends: 5292 [2024-11-24 01:55:35,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:55:35,187 INFO L435 NwaCegarLoop]: 1367 mSDtfsCounter, 0 mSDsluCounter, 5462 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6829 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:35,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6829 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:55:35,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5292 states. [2024-11-24 01:55:35,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5292 to 5292. [2024-11-24 01:55:35,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5292 states, 3907 states have (on average 1.3158433580752495) internal successors, (5141), 3954 states have internal predecessors, (5141), 950 states have call successors, (950), 435 states have call predecessors, (950), 434 states have return successors, (948), 937 states have call predecessors, (948), 938 states have call successors, (948) [2024-11-24 01:55:35,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5292 states to 5292 states and 7039 transitions. [2024-11-24 01:55:35,487 INFO L78 Accepts]: Start accepts. Automaton has 5292 states and 7039 transitions. Word has length 408 [2024-11-24 01:55:35,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:35,488 INFO L471 AbstractCegarLoop]: Abstraction has 5292 states and 7039 transitions. [2024-11-24 01:55:35,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-24 01:55:35,489 INFO L276 IsEmpty]: Start isEmpty. Operand 5292 states and 7039 transitions. [2024-11-24 01:55:35,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2024-11-24 01:55:35,500 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:35,500 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:35,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 01:55:35,500 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:35,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:35,501 INFO L85 PathProgramCache]: Analyzing trace with hash 859714010, now seen corresponding path program 1 times [2024-11-24 01:55:35,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:35,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748009767] [2024-11-24 01:55:35,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:35,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:37,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1229 trivial. 0 not checked. [2024-11-24 01:55:37,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:37,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748009767] [2024-11-24 01:55:37,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748009767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:55:37,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:55:37,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:55:37,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438778637] [2024-11-24 01:55:37,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:55:37,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:55:37,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:37,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:55:37,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:55:37,497 INFO L87 Difference]: Start difference. First operand 5292 states and 7039 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2024-11-24 01:55:41,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:55:42,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:42,170 INFO L93 Difference]: Finished difference Result 12410 states and 16445 transitions. [2024-11-24 01:55:42,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:55:42,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 420 [2024-11-24 01:55:42,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:42,230 INFO L225 Difference]: With dead ends: 12410 [2024-11-24 01:55:42,234 INFO L226 Difference]: Without dead ends: 7367 [2024-11-24 01:55:42,259 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:55:42,263 INFO L435 NwaCegarLoop]: 1738 mSDtfsCounter, 915 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 2902 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:42,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [915 Valid, 2902 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 33 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-24 01:55:42,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7367 states. [2024-11-24 01:55:42,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7367 to 7127. [2024-11-24 01:55:42,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7127 states, 5298 states have (on average 1.3178557946394867) internal successors, (6982), 5363 states have internal predecessors, (6982), 1209 states have call successors, (1209), 620 states have call predecessors, (1209), 619 states have return successors, (1209), 1194 states have call predecessors, (1209), 1197 states have call successors, (1209) [2024-11-24 01:55:42,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7127 states to 7127 states and 9400 transitions. [2024-11-24 01:55:42,692 INFO L78 Accepts]: Start accepts. Automaton has 7127 states and 9400 transitions. Word has length 420 [2024-11-24 01:55:42,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:42,693 INFO L471 AbstractCegarLoop]: Abstraction has 7127 states and 9400 transitions. [2024-11-24 01:55:42,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2024-11-24 01:55:42,693 INFO L276 IsEmpty]: Start isEmpty. Operand 7127 states and 9400 transitions. [2024-11-24 01:55:42,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-11-24 01:55:42,708 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:42,709 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:42,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 01:55:42,709 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:42,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:42,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1379034868, now seen corresponding path program 1 times [2024-11-24 01:55:42,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:42,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75735494] [2024-11-24 01:55:42,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:42,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:44,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1266 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1249 trivial. 0 not checked. [2024-11-24 01:55:44,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:44,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75735494] [2024-11-24 01:55:44,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75735494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:55:44,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:55:44,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:55:44,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773240243] [2024-11-24 01:55:44,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:55:44,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:55:44,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:44,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:55:44,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:55:44,503 INFO L87 Difference]: Start difference. First operand 7127 states and 9400 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-11-24 01:55:44,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:44,790 INFO L93 Difference]: Finished difference Result 14005 states and 18510 transitions. [2024-11-24 01:55:44,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:55:44,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 462 [2024-11-24 01:55:44,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:44,828 INFO L225 Difference]: With dead ends: 14005 [2024-11-24 01:55:44,828 INFO L226 Difference]: Without dead ends: 7127 [2024-11-24 01:55:44,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:55:44,846 INFO L435 NwaCegarLoop]: 1364 mSDtfsCounter, 0 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2722 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:44,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2722 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:55:44,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7127 states. [2024-11-24 01:55:45,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7127 to 7127. [2024-11-24 01:55:45,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7127 states, 5298 states have (on average 1.3144582861457155) internal successors, (6964), 5363 states have internal predecessors, (6964), 1209 states have call successors, (1209), 620 states have call predecessors, (1209), 619 states have return successors, (1209), 1194 states have call predecessors, (1209), 1197 states have call successors, (1209) [2024-11-24 01:55:45,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7127 states to 7127 states and 9382 transitions. [2024-11-24 01:55:45,266 INFO L78 Accepts]: Start accepts. Automaton has 7127 states and 9382 transitions. Word has length 462 [2024-11-24 01:55:45,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:45,268 INFO L471 AbstractCegarLoop]: Abstraction has 7127 states and 9382 transitions. [2024-11-24 01:55:45,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-11-24 01:55:45,269 INFO L276 IsEmpty]: Start isEmpty. Operand 7127 states and 9382 transitions. [2024-11-24 01:55:45,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-11-24 01:55:45,282 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:45,282 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:45,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 01:55:45,282 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:45,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:45,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1316659099, now seen corresponding path program 1 times [2024-11-24 01:55:45,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:45,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464949381] [2024-11-24 01:55:45,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:45,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:47,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1266 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1255 trivial. 0 not checked. [2024-11-24 01:55:47,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:47,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464949381] [2024-11-24 01:55:47,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464949381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:55:47,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:55:47,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:55:47,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735872678] [2024-11-24 01:55:47,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:55:47,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:55:47,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:47,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:55:47,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:55:47,049 INFO L87 Difference]: Start difference. First operand 7127 states and 9382 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-11-24 01:55:51,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:55:51,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:51,475 INFO L93 Difference]: Finished difference Result 14002 states and 18428 transitions. [2024-11-24 01:55:51,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:55:51,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 465 [2024-11-24 01:55:51,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:51,536 INFO L225 Difference]: With dead ends: 14002 [2024-11-24 01:55:51,537 INFO L226 Difference]: Without dead ends: 7085 [2024-11-24 01:55:51,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:55:51,557 INFO L435 NwaCegarLoop]: 1365 mSDtfsCounter, 10 mSDsluCounter, 4081 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5446 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:51,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 5446 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-24 01:55:51,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7085 states. [2024-11-24 01:55:51,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7085 to 7027. [2024-11-24 01:55:51,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7027 states, 5225 states have (on average 1.3152153110047846) internal successors, (6872), 5293 states have internal predecessors, (6872), 1192 states have call successors, (1192), 610 states have call predecessors, (1192), 609 states have return successors, (1192), 1174 states have call predecessors, (1192), 1180 states have call successors, (1192) [2024-11-24 01:55:51,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7027 states to 7027 states and 9256 transitions. [2024-11-24 01:55:51,975 INFO L78 Accepts]: Start accepts. Automaton has 7027 states and 9256 transitions. Word has length 465 [2024-11-24 01:55:51,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:51,975 INFO L471 AbstractCegarLoop]: Abstraction has 7027 states and 9256 transitions. [2024-11-24 01:55:51,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-11-24 01:55:51,976 INFO L276 IsEmpty]: Start isEmpty. Operand 7027 states and 9256 transitions. [2024-11-24 01:55:51,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2024-11-24 01:55:51,990 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:51,990 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:51,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 01:55:51,991 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:51,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:51,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1638244547, now seen corresponding path program 1 times [2024-11-24 01:55:51,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:51,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314628345] [2024-11-24 01:55:51,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:51,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:53,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1266 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1249 trivial. 0 not checked. [2024-11-24 01:55:53,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:53,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314628345] [2024-11-24 01:55:53,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314628345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:55:53,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:55:53,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:55:53,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948501829] [2024-11-24 01:55:53,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:55:53,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:55:53,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:53,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:55:53,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:55:53,527 INFO L87 Difference]: Start difference. First operand 7027 states and 9256 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-24 01:55:53,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:53,811 INFO L93 Difference]: Finished difference Result 9723 states and 12765 transitions. [2024-11-24 01:55:53,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:55:53,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) Word has length 483 [2024-11-24 01:55:53,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:53,855 INFO L225 Difference]: With dead ends: 9723 [2024-11-24 01:55:53,855 INFO L226 Difference]: Without dead ends: 7025 [2024-11-24 01:55:53,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:55:53,866 INFO L435 NwaCegarLoop]: 1364 mSDtfsCounter, 0 mSDsluCounter, 5449 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6813 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:53,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6813 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:55:53,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7025 states. [2024-11-24 01:55:54,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7025 to 7025. [2024-11-24 01:55:54,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7025 states, 5223 states have (on average 1.314953092092667) internal successors, (6868), 5291 states have internal predecessors, (6868), 1192 states have call successors, (1192), 610 states have call predecessors, (1192), 609 states have return successors, (1192), 1174 states have call predecessors, (1192), 1180 states have call successors, (1192) [2024-11-24 01:55:54,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 9252 transitions. [2024-11-24 01:55:54,283 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 9252 transitions. Word has length 483 [2024-11-24 01:55:54,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:54,284 INFO L471 AbstractCegarLoop]: Abstraction has 7025 states and 9252 transitions. [2024-11-24 01:55:54,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-24 01:55:54,284 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 9252 transitions. [2024-11-24 01:55:54,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2024-11-24 01:55:54,298 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:54,298 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:54,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 01:55:54,299 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:54,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:54,299 INFO L85 PathProgramCache]: Analyzing trace with hash -335558995, now seen corresponding path program 1 times [2024-11-24 01:55:54,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:54,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303085392] [2024-11-24 01:55:54,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:54,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:56,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1240 trivial. 0 not checked. [2024-11-24 01:55:56,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:56,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303085392] [2024-11-24 01:55:56,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303085392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:55:56,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:55:56,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:55:56,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228479131] [2024-11-24 01:55:56,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:55:56,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:55:56,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:56,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:55:56,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:55:56,418 INFO L87 Difference]: Start difference. First operand 7025 states and 9252 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-24 01:55:56,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:56,867 INFO L93 Difference]: Finished difference Result 13930 states and 18373 transitions. [2024-11-24 01:55:56,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:55:56,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 491 [2024-11-24 01:55:56,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:56,904 INFO L225 Difference]: With dead ends: 13930 [2024-11-24 01:55:56,904 INFO L226 Difference]: Without dead ends: 7157 [2024-11-24 01:55:56,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:55:56,920 INFO L435 NwaCegarLoop]: 1399 mSDtfsCounter, 23 mSDsluCounter, 2761 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 4160 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 [2024-11-24 01:55:56,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 4160 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:55:56,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7157 states. [2024-11-24 01:55:57,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7157 to 7109. [2024-11-24 01:55:57,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7109 states, 5287 states have (on average 1.3141668242859845) internal successors, (6948), 5353 states have internal predecessors, (6948), 1212 states have call successors, (1212), 610 states have call predecessors, (1212), 609 states have return successors, (1214), 1196 states have call predecessors, (1214), 1200 states have call successors, (1214) [2024-11-24 01:55:57,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7109 states to 7109 states and 9374 transitions. [2024-11-24 01:55:57,472 INFO L78 Accepts]: Start accepts. Automaton has 7109 states and 9374 transitions. Word has length 491 [2024-11-24 01:55:57,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:57,474 INFO L471 AbstractCegarLoop]: Abstraction has 7109 states and 9374 transitions. [2024-11-24 01:55:57,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-24 01:55:57,475 INFO L276 IsEmpty]: Start isEmpty. Operand 7109 states and 9374 transitions. [2024-11-24 01:55:57,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2024-11-24 01:55:57,485 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:57,485 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:57,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 01:55:57,486 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:57,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:57,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1715425003, now seen corresponding path program 1 times [2024-11-24 01:55:57,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:57,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735327156] [2024-11-24 01:55:57,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:57,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:58,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:59,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1240 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1229 trivial. 0 not checked. [2024-11-24 01:55:59,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:59,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735327156] [2024-11-24 01:55:59,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735327156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:55:59,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:55:59,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:55:59,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942933955] [2024-11-24 01:55:59,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:55:59,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:55:59,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:59,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:55:59,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:55:59,169 INFO L87 Difference]: Start difference. First operand 7109 states and 9374 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-24 01:56:03,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:56:04,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:56:04,188 INFO L93 Difference]: Finished difference Result 17779 states and 23371 transitions. [2024-11-24 01:56:04,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:56:04,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 491 [2024-11-24 01:56:04,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:56:04,239 INFO L225 Difference]: With dead ends: 17779 [2024-11-24 01:56:04,239 INFO L226 Difference]: Without dead ends: 10922 [2024-11-24 01:56:04,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:56:04,257 INFO L435 NwaCegarLoop]: 2320 mSDtfsCounter, 964 mSDsluCounter, 5984 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 8304 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:56:04,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 8304 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-24 01:56:04,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10922 states. [2024-11-24 01:56:04,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10922 to 8801. [2024-11-24 01:56:04,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8801 states, 6549 states have (on average 1.3122614139563291) internal successors, (8594), 6633 states have internal predecessors, (8594), 1495 states have call successors, (1495), 756 states have call predecessors, (1495), 756 states have return successors, (1498), 1474 states have call predecessors, (1498), 1483 states have call successors, (1498) [2024-11-24 01:56:04,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8801 states to 8801 states and 11587 transitions. [2024-11-24 01:56:04,977 INFO L78 Accepts]: Start accepts. Automaton has 8801 states and 11587 transitions. Word has length 491 [2024-11-24 01:56:04,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:56:04,978 INFO L471 AbstractCegarLoop]: Abstraction has 8801 states and 11587 transitions. [2024-11-24 01:56:04,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-24 01:56:04,978 INFO L276 IsEmpty]: Start isEmpty. Operand 8801 states and 11587 transitions. [2024-11-24 01:56:04,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2024-11-24 01:56:04,994 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:56:04,994 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:56:04,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 01:56:04,995 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:56:04,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:56:04,995 INFO L85 PathProgramCache]: Analyzing trace with hash -827686376, now seen corresponding path program 1 times [2024-11-24 01:56:04,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:56:04,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791665607] [2024-11-24 01:56:04,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:56:04,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:56:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:56:07,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1274 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1274 trivial. 0 not checked. [2024-11-24 01:56:07,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:56:07,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791665607] [2024-11-24 01:56:07,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791665607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:56:07,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:56:07,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:56:07,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097385042] [2024-11-24 01:56:07,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:56:07,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:56:07,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:56:07,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:56:07,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:56:07,291 INFO L87 Difference]: Start difference. First operand 8801 states and 11587 transitions. Second operand has 6 states, 6 states have (on average 31.0) internal successors, (186), 5 states have internal predecessors, (186), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-24 01:56:07,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:56:07,857 INFO L93 Difference]: Finished difference Result 8900 states and 11683 transitions. [2024-11-24 01:56:07,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:56:07,858 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 5 states have internal predecessors, (186), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) Word has length 542 [2024-11-24 01:56:07,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:56:07,894 INFO L225 Difference]: With dead ends: 8900 [2024-11-24 01:56:07,895 INFO L226 Difference]: Without dead ends: 8557 [2024-11-24 01:56:07,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:56:07,901 INFO L435 NwaCegarLoop]: 1370 mSDtfsCounter, 0 mSDsluCounter, 5466 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6836 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:56:07,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6836 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:56:07,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8557 states. [2024-11-24 01:56:08,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8557 to 8551. [2024-11-24 01:56:08,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8551 states, 6384 states have (on average 1.31328320802005) internal successors, (8384), 6462 states have internal predecessors, (8384), 1430 states have call successors, (1430), 736 states have call predecessors, (1430), 736 states have return successors, (1434), 1409 states have call predecessors, (1434), 1419 states have call successors, (1434) [2024-11-24 01:56:08,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8551 states to 8551 states and 11248 transitions. [2024-11-24 01:56:08,430 INFO L78 Accepts]: Start accepts. Automaton has 8551 states and 11248 transitions. Word has length 542 [2024-11-24 01:56:08,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:56:08,431 INFO L471 AbstractCegarLoop]: Abstraction has 8551 states and 11248 transitions. [2024-11-24 01:56:08,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 5 states have internal predecessors, (186), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-24 01:56:08,431 INFO L276 IsEmpty]: Start isEmpty. Operand 8551 states and 11248 transitions. [2024-11-24 01:56:08,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2024-11-24 01:56:08,440 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:56:08,440 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:56:08,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 01:56:08,441 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:56:08,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:56:08,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1595260448, now seen corresponding path program 1 times [2024-11-24 01:56:08,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:56:08,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170170854] [2024-11-24 01:56:08,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:56:08,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:56:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:56:10,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1276 trivial. 0 not checked. [2024-11-24 01:56:10,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:56:10,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170170854] [2024-11-24 01:56:10,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170170854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:56:10,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:56:10,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:56:10,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83177289] [2024-11-24 01:56:10,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:56:10,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:56:10,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:56:10,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:56:10,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:56:10,363 INFO L87 Difference]: Start difference. First operand 8551 states and 11248 transitions. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) [2024-11-24 01:56:10,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:56:10,676 INFO L93 Difference]: Finished difference Result 8619 states and 11313 transitions. [2024-11-24 01:56:10,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:56:10,677 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) Word has length 545 [2024-11-24 01:56:10,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:56:10,707 INFO L225 Difference]: With dead ends: 8619 [2024-11-24 01:56:10,707 INFO L226 Difference]: Without dead ends: 8536 [2024-11-24 01:56:10,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:56:10,711 INFO L435 NwaCegarLoop]: 1369 mSDtfsCounter, 0 mSDsluCounter, 5462 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6831 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:56:10,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6831 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:56:10,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8536 states. [2024-11-24 01:56:11,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8536 to 8536. [2024-11-24 01:56:11,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8536 states, 6377 states have (on average 1.3133134702838325) internal successors, (8375), 6453 states have internal predecessors, (8375), 1422 states have call successors, (1422), 735 states have call predecessors, (1422), 736 states have return successors, (1428), 1404 states have call predecessors, (1428), 1413 states have call successors, (1428) [2024-11-24 01:56:11,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8536 states to 8536 states and 11225 transitions. [2024-11-24 01:56:11,041 INFO L78 Accepts]: Start accepts. Automaton has 8536 states and 11225 transitions. Word has length 545 [2024-11-24 01:56:11,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:56:11,042 INFO L471 AbstractCegarLoop]: Abstraction has 8536 states and 11225 transitions. [2024-11-24 01:56:11,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) [2024-11-24 01:56:11,042 INFO L276 IsEmpty]: Start isEmpty. Operand 8536 states and 11225 transitions. [2024-11-24 01:56:11,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2024-11-24 01:56:11,053 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:56:11,053 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:56:11,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 01:56:11,053 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:56:11,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:56:11,054 INFO L85 PathProgramCache]: Analyzing trace with hash -2015801896, now seen corresponding path program 1 times [2024-11-24 01:56:11,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:56:11,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648111609] [2024-11-24 01:56:11,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:56:11,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:56:12,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:56:12,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2024-11-24 01:56:12,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:56:12,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648111609] [2024-11-24 01:56:12,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648111609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:56:12,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:56:12,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:56:12,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978989973] [2024-11-24 01:56:12,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:56:12,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:56:12,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:56:12,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:56:12,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:56:12,867 INFO L87 Difference]: Start difference. First operand 8536 states and 11225 transitions. Second operand has 6 states, 6 states have (on average 33.5) internal successors, (201), 5 states have internal predecessors, (201), 2 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (50), 3 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-24 01:56:13,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:56:13,092 INFO L93 Difference]: Finished difference Result 8853 states and 11517 transitions. [2024-11-24 01:56:13,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:56:13,093 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.5) internal successors, (201), 5 states have internal predecessors, (201), 2 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (50), 3 states have call predecessors, (50), 2 states have call successors, (50) Word has length 563 [2024-11-24 01:56:13,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:56:13,110 INFO L225 Difference]: With dead ends: 8853 [2024-11-24 01:56:13,110 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 01:56:13,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:56:13,125 INFO L435 NwaCegarLoop]: 1318 mSDtfsCounter, 0 mSDsluCounter, 5266 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6584 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:56:13,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6584 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:56:13,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 01:56:13,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 01:56:13,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:56:13,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 01:56:13,139 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 563 [2024-11-24 01:56:13,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:56:13,139 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 01:56:13,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.5) internal successors, (201), 5 states have internal predecessors, (201), 2 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (50), 3 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-24 01:56:13,139 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 01:56:13,139 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 01:56:13,142 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 01:56:13,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 01:56:13,145 INFO L422 BasicCegarLoop]: Path program histogram: [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] [2024-11-24 01:56:13,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 01:58:11,906 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:58:11,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:58:11 BoogieIcfgContainer [2024-11-24 01:58:11,977 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:58:11,978 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:58:11,978 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:58:11,979 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:58:11,979 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:54:20" (3/4) ... [2024-11-24 01:58:11,982 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 01:58:11,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure copy_from_user [2024-11-24 01:58:11,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure unregister_console [2024-11-24 01:58:11,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2024-11-24 01:58:11,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_undef_int [2024-11-24 01:58:11,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2024-11-24 01:58:11,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lp_set_timeout [2024-11-24 01:58:11,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __bad_percpu_size [2024-11-24 01:58:11,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lp_detach [2024-11-24 01:58:11,992 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lp_error [2024-11-24 01:58:11,992 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure parport_set_timeout [2024-11-24 01:58:11,992 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_lock_lp_mutex [2024-11-24 01:58:11,992 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2024-11-24 01:58:11,992 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.meminit [2024-11-24 01:58:11,992 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~int [2024-11-24 01:58:11,992 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lp_negotiate [2024-11-24 01:58:11,992 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lp_reset [2024-11-24 01:58:11,992 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lp_register [2024-11-24 01:58:11,992 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_unregister_chrdev_25 [2024-11-24 01:58:11,992 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure file_inode [2024-11-24 01:58:11,992 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure get_current [2024-11-24 01:58:11,992 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_is_err [2024-11-24 01:58:11,993 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lp_release_parport [2024-11-24 01:58:11,993 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure signal_pending [2024-11-24 01:58:11,993 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-11-24 01:58:11,994 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure iminor [2024-11-24 01:58:11,994 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_lock_interruptible [2024-11-24 01:58:11,994 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure parport_claim_or_block [2024-11-24 01:58:11,994 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure parport_write [2024-11-24 01:58:11,994 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lp_do_ioctl [2024-11-24 01:58:11,994 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure prepare_to_wait [2024-11-24 01:58:11,994 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-11-24 01:58:11,994 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure class_destroy [2024-11-24 01:58:11,994 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_unlock [2024-11-24 01:58:11,994 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure copy_to_user [2024-11-24 01:58:11,994 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __might_fault [2024-11-24 01:58:11,994 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-11-24 01:58:11,994 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_unlock_lp_mutex [2024-11-24 01:58:11,994 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure test_ti_thread_flag [2024-11-24 01:58:11,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lp_wait_ready [2024-11-24 01:58:11,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure parport_negotiate [2024-11-24 01:58:11,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2024-11-24 01:58:11,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure parport_release [2024-11-24 01:58:11,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __init_waitqueue_head [2024-11-24 01:58:11,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure schedule_timeout [2024-11-24 01:58:11,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-24 01:58:11,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_init_zalloc [2024-11-24 01:58:11,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lp_claim_parport_or_block [2024-11-24 01:58:11,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure compat_ptr [2024-11-24 01:58:11,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lp_write [2024-11-24 01:58:11,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure test_and_clear_bit [2024-11-24 01:58:11,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure test_and_set_bit [2024-11-24 01:58:11,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_lock [2024-11-24 01:58:11,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~X~int~TO~VOID [2024-11-24 01:58:11,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure finish_wait [2024-11-24 01:58:11,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_memset [2024-11-24 01:58:11,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure parport_yield_blocking [2024-11-24 01:58:11,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure IS_ERR [2024-11-24 01:58:12,045 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 280 nodes and edges [2024-11-24 01:58:12,050 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 95 nodes and edges [2024-11-24 01:58:12,055 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2024-11-24 01:58:12,059 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-24 01:58:12,063 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-24 01:58:12,071 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-24 01:58:12,077 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 01:58:12,129 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((ldv_mutex_lp_mutex == 1) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_mutex_port_mutex_of_lp_struct == 2)) && (ldv_mutex_lock == 1)) && (\old(ldv_mutex_port_mutex_of_lp_struct) == 1)) && (ldv_retval_0 == 0)) [2024-11-24 01:58:12,130 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((ldv_mutex_lp_mutex == 1) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_mutex_port_mutex_of_lp_struct == 2)) && (ldv_mutex_lock == 1)) && (\old(ldv_mutex_port_mutex_of_lp_struct) == 1)) && (ldv_retval_0 == 0)) [2024-11-24 01:58:12,307 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((ldv_mutex_lp_mutex == 1) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_mutex_port_mutex_of_lp_struct == 2)) && (ldv_mutex_lock == 1)) && (\old(ldv_mutex_port_mutex_of_lp_struct) == 1)) && (ldv_retval_0 == 0)) [2024-11-24 01:58:12,309 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((ldv_mutex_lp_mutex == 1) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_mutex_port_mutex_of_lp_struct == 2)) && (ldv_mutex_lock == 1)) && (\old(ldv_mutex_port_mutex_of_lp_struct) == 1)) && (ldv_retval_0 == 0)) [2024-11-24 01:58:12,371 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 01:58:12,371 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 01:58:12,371 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:58:12,372 INFO L158 Benchmark]: Toolchain (without parser) took 244159.04ms. Allocated memory was 117.4MB in the beginning and 3.1GB in the end (delta: 3.0GB). Free memory was 85.6MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 232.8MB. Max. memory is 16.1GB. [2024-11-24 01:58:12,372 INFO L158 Benchmark]: CDTParser took 0.90ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:58:12,372 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2021.15ms. Allocated memory is still 117.4MB. Free memory was 85.4MB in the beginning and 67.1MB in the end (delta: 18.3MB). Peak memory consumption was 73.7MB. Max. memory is 16.1GB. [2024-11-24 01:58:12,372 INFO L158 Benchmark]: Boogie Procedure Inliner took 223.18ms. Allocated memory is still 117.4MB. Free memory was 67.1MB in the beginning and 47.2MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:58:12,373 INFO L158 Benchmark]: Boogie Preprocessor took 441.67ms. Allocated memory is still 117.4MB. Free memory was 47.2MB in the beginning and 26.1MB in the end (delta: 21.1MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2024-11-24 01:58:12,373 INFO L158 Benchmark]: RCFGBuilder took 9876.31ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 26.1MB in the beginning and 110.5MB in the end (delta: -84.4MB). Peak memory consumption was 89.0MB. Max. memory is 16.1GB. [2024-11-24 01:58:12,373 INFO L158 Benchmark]: TraceAbstraction took 231197.70ms. Allocated memory was 201.3MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 110.5MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. [2024-11-24 01:58:12,373 INFO L158 Benchmark]: Witness Printer took 392.64ms. Allocated memory is still 3.1GB. Free memory was 2.9GB in the beginning and 2.9GB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-24 01:58:12,375 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.90ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2021.15ms. Allocated memory is still 117.4MB. Free memory was 85.4MB in the beginning and 67.1MB in the end (delta: 18.3MB). Peak memory consumption was 73.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 223.18ms. Allocated memory is still 117.4MB. Free memory was 67.1MB in the beginning and 47.2MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 441.67ms. Allocated memory is still 117.4MB. Free memory was 47.2MB in the beginning and 26.1MB in the end (delta: 21.1MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. * RCFGBuilder took 9876.31ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 26.1MB in the beginning and 110.5MB in the end (delta: -84.4MB). Peak memory consumption was 89.0MB. Max. memory is 16.1GB. * TraceAbstraction took 231197.70ms. Allocated memory was 201.3MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 110.5MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. * Witness Printer took 392.64ms. Allocated memory is still 3.1GB. Free memory was 2.9GB in the beginning and 2.9GB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 3376]: 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"); [3376] - GenericResultAtLocation [Line: 3384]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3384-3385] - GenericResultAtLocation [Line: 3393]: 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, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3393-3394] - GenericResultAtLocation [Line: 3402]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [3402-3403] - GenericResultAtLocation [Line: 3421]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3421] - GenericResultAtLocation [Line: 3424]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3424] - GenericResultAtLocation [Line: 3427]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3427] - GenericResultAtLocation [Line: 3430]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3430] - GenericResultAtLocation [Line: 3451]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [3451] - GenericResultAtLocation [Line: 3454]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [3454] - GenericResultAtLocation [Line: 3457]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [3457] - GenericResultAtLocation [Line: 3460]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [3460] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 5335]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 58 procedures, 994 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 112.3s, OverallIterations: 27, TraceHistogramMax: 16, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.4s, AutomataDifference: 42.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 14363 SdHoareTripleChecker+Valid, 32.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14347 mSDsluCounter, 110806 SdHoareTripleChecker+Invalid, 31.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 71012 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 468 IncrementalHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 39794 mSDtfsCounter, 468 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1830 GetRequests, 1757 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9765occurred in iteration=11, InterpolantAutomatonStates: 118, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.8s AutomataMinimizationTime, 27 MinimizatonAttempts, 2716 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.4s SsaConstructionTime, 5.2s SatisfiabilityAnalysisTime, 15.9s InterpolantComputationTime, 10032 NumberOfCodeBlocks, 9456 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 10634 ConstructedInterpolants, 0 QuantifiedInterpolants, 11984 SizeOfPredicates, 0 NumberOfNonLiveVariables, 16908 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 33 InterpolantComputations, 25 PerfectInterpolantSequences, 25836/25985 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4690]: Location Invariant Derived location invariant: ((((((((ldv_mutex_lp_mutex == 1) && (ldv_state_variable_0 == 1)) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_port_mutex_of_lp_struct == 1)) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_mutex_lock == 1)) && (ldv_state_variable_3 == 1)) && (ldv_retval_0 == 0)) - InvariantResult [Line: 4550]: Location Invariant Derived location invariant: ((((((ldv_mutex_lp_mutex == 1) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_port_mutex_of_lp_struct == 1)) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_mutex_lock == 1)) && (ldv_retval_0 == 0)) - InvariantResult [Line: 4030]: Location Invariant Derived location invariant: (((((((ldv_mutex_lp_mutex == 1) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_mutex_port_mutex_of_lp_struct == 2)) && (ldv_mutex_lock == 1)) && (\old(ldv_mutex_port_mutex_of_lp_struct) == 1)) && (ldv_retval_0 == 0)) - InvariantResult [Line: 4030]: Location Invariant Derived location invariant: (((((((ldv_mutex_lp_mutex == 1) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_mutex_port_mutex_of_lp_struct == 2)) && (ldv_mutex_lock == 1)) && (\old(ldv_mutex_port_mutex_of_lp_struct) == 1)) && (ldv_retval_0 == 0)) - InvariantResult [Line: 4208]: Location Invariant Derived location invariant: ((((((ldv_mutex_lp_mutex == 1) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_mutex_port_mutex_of_lp_struct == 2)) && (ldv_mutex_lock == 1)) && (ldv_retval_0 == 0)) - InvariantResult [Line: 4743]: Location Invariant Derived location invariant: ((((((((ldv_mutex_lp_mutex == 1) && (ldv_state_variable_0 == 1)) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_port_mutex_of_lp_struct == 1)) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_mutex_lock == 1)) && (ldv_state_variable_3 == 1)) && (ldv_retval_0 == 0)) RESULT: Ultimate proved your program to be correct! [2024-11-24 01:58:12,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1ab6df-eeb4-4551-be45-363d2ad15fcf/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE