./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-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 71a394c873c772dcf5e6708cb37d9b35e24256f5a212c542b9c08f202c87eae6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:29:35,097 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:29:35,187 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 22:29:35,195 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:29:35,196 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:29:35,224 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:29:35,225 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:29:35,225 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:29:35,226 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:29:35,227 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:29:35,228 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:29:35,228 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:29:35,229 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:29:35,230 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:29:35,230 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:29:35,231 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:29:35,231 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:29:35,232 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:29:35,233 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:29:35,233 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:29:35,234 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:29:35,234 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:29:35,235 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:29:35,235 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:29:35,236 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:29:35,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:29:35,237 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:29:35,237 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:29:35,238 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:29:35,238 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:29:35,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:29:35,239 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:29:35,239 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:29:35,240 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:29:35,240 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:29:35,240 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:29:35,241 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71a394c873c772dcf5e6708cb37d9b35e24256f5a212c542b9c08f202c87eae6 [2023-11-06 22:29:35,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:29:35,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:29:35,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:29:35,600 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:29:35,601 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:29:35,602 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2023-11-06 22:29:38,761 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:29:39,415 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:29:39,418 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2023-11-06 22:29:39,470 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/data/cf827fe76/75e473d1ed1d4b649196633a282c6e73/FLAG6f44cf43f [2023-11-06 22:29:39,487 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/data/cf827fe76/75e473d1ed1d4b649196633a282c6e73 [2023-11-06 22:29:39,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:29:39,497 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:29:39,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:29:39,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:29:39,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:29:39,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:29:39" (1/1) ... [2023-11-06 22:29:39,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f4f41d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:39, skipping insertion in model container [2023-11-06 22:29:39,507 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:29:39" (1/1) ... [2023-11-06 22:29:39,640 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:29:41,578 WARN L240 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_a9543c6f-9e28-444f-9e61-1a11db626af4/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i[263471,263484] [2023-11-06 22:29:41,653 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:29:41,800 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:29:41,936 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"); [5533] [2023-11-06 22:29:41,938 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5540] [2023-11-06 22:29:41,941 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [5653] [2023-11-06 22:29:41,942 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5656] [2023-11-06 22:29:41,942 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5659] [2023-11-06 22:29:41,943 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5662] [2023-11-06 22:29:41,944 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5714] [2023-11-06 22:29:41,946 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5752] [2023-11-06 22:29:41,946 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5760] [2023-11-06 22:29:41,947 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [5767] [2023-11-06 22:29:41,947 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [5775] [2023-11-06 22:29:41,947 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [5782] [2023-11-06 22:29:41,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [5790] [2023-11-06 22:29:41,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; outsl": "+S" (addr), "+c" (count): "d" (port)); [5797] [2023-11-06 22:29:41,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; insl": "+D" (addr), "+c" (count): "d" (port)); [5804] [2023-11-06 22:29:41,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [5947-5948] [2023-11-06 22:29:41,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [5976-5977] [2023-11-06 22:29:42,184 WARN L240 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_a9543c6f-9e28-444f-9e61-1a11db626af4/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i[263471,263484] [2023-11-06 22:29:42,195 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:29:42,386 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:29:42,386 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:29:42,386 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:29:42,394 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:29:42,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:42 WrapperNode [2023-11-06 22:29:42,395 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:29:42,396 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:29:42,396 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:29:42,396 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:29:42,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:42" (1/1) ... [2023-11-06 22:29:42,496 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:42" (1/1) ... [2023-11-06 22:29:42,692 INFO L138 Inliner]: procedures = 225, calls = 1511, calls flagged for inlining = 103, calls inlined = 100, statements flattened = 4441 [2023-11-06 22:29:42,693 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:29:42,694 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:29:42,694 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:29:42,694 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:29:42,703 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:42" (1/1) ... [2023-11-06 22:29:42,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:42" (1/1) ... [2023-11-06 22:29:42,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:42" (1/1) ... [2023-11-06 22:29:42,753 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:42" (1/1) ... [2023-11-06 22:29:42,871 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:42" (1/1) ... [2023-11-06 22:29:42,907 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:42" (1/1) ... [2023-11-06 22:29:42,935 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:42" (1/1) ... [2023-11-06 22:29:42,958 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:42" (1/1) ... [2023-11-06 22:29:42,994 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:29:42,995 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:29:42,996 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:29:42,996 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:29:42,997 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:42" (1/1) ... [2023-11-06 22:29:43,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:29:43,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:29:43,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:29:43,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:29:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_update_stats [2023-11-06 22:29:43,192 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_update_stats [2023-11-06 22:29:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-06 22:29:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 22:29:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-06 22:29:43,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-06 22:29:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-06 22:29:43,193 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-06 22:29:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-06 22:29:43,193 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-06 22:29:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-06 22:29:43,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-06 22:29:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-06 22:29:43,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-06 22:29:43,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-06 22:29:43,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-06 22:29:43,195 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-06 22:29:43,197 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-06 22:29:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-06 22:29:43,198 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-06 22:29:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 22:29:43,198 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 22:29:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:29:43,198 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:29:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2023-11-06 22:29:43,198 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2023-11-06 22:29:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_open [2023-11-06 22:29:43,199 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_open [2023-11-06 22:29:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_load_eeprom [2023-11-06 22:29:43,199 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_load_eeprom [2023-11-06 22:29:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-06 22:29:43,199 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-06 22:29:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:29:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-06 22:29:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-06 22:29:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_sense_lan [2023-11-06 22:29:43,200 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_sense_lan [2023-11-06 22:29:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2023-11-06 22:29:43,200 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2023-11-06 22:29:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:29:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_get_stats [2023-11-06 22:29:43,201 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_get_stats [2023-11-06 22:29:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-06 22:29:43,201 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-06 22:29:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-06 22:29:43,201 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-06 22:29:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-06 22:29:43,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-06 22:29:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-06 22:29:43,202 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-06 22:29:43,202 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-06 22:29:43,203 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-06 22:29:43,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:29:43,203 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-06 22:29:43,203 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-06 22:29:43,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:29:43,204 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2023-11-06 22:29:43,204 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2023-11-06 22:29:43,205 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-06 22:29:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-06 22:29:43,205 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-06 22:29:43,206 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-06 22:29:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2023-11-06 22:29:43,206 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2023-11-06 22:29:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-06 22:29:43,206 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-06 22:29:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-06 22:29:43,206 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-06 22:29:43,207 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-06 22:29:43,207 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-06 22:29:43,207 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-06 22:29:43,207 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-06 22:29:43,207 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-06 22:29:43,207 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-06 22:29:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_cascade_reset [2023-11-06 22:29:43,208 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_cascade_reset [2023-11-06 22:29:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2023-11-06 22:29:43,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2023-11-06 22:29:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-06 22:29:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-06 22:29:43,209 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-06 22:29:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-06 22:29:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_build_rx_pdl [2023-11-06 22:29:43,209 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_build_rx_pdl [2023-11-06 22:29:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-06 22:29:43,209 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-06 22:29:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:29:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-06 22:29:43,210 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-06 22:29:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-06 22:29:43,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-06 22:29:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-06 22:29:43,210 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-06 22:29:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rx_bm [2023-11-06 22:29:43,210 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rx_bm [2023-11-06 22:29:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_BM_shutdown [2023-11-06 22:29:43,211 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_BM_shutdown [2023-11-06 22:29:43,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-06 22:29:43,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-06 22:29:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure wait [2023-11-06 22:29:43,212 INFO L138 BoogieDeclarations]: Found implementation of procedure wait [2023-11-06 22:29:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-06 22:29:43,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-06 22:29:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-06 22:29:43,212 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-06 22:29:43,213 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_hwinit [2023-11-06 22:29:43,213 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_hwinit [2023-11-06 22:29:43,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:29:43,214 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-06 22:29:43,214 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-06 22:29:43,214 INFO L130 BoogieDeclarations]: Found specification of procedure dev_consume_skb_any [2023-11-06 22:29:43,214 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_consume_skb_any [2023-11-06 22:29:43,214 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-11-06 22:29:43,214 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-11-06 22:29:43,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-06 22:29:43,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-06 22:29:43,214 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_whatever [2023-11-06 22:29:43,215 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_whatever [2023-11-06 22:29:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-06 22:29:43,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-06 22:29:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_close [2023-11-06 22:29:43,215 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_close [2023-11-06 22:29:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2023-11-06 22:29:43,215 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2023-11-06 22:29:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_stop_interface [2023-11-06 22:29:43,216 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_stop_interface [2023-11-06 22:29:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:29:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_check_lan [2023-11-06 22:29:43,216 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_check_lan [2023-11-06 22:29:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-06 22:29:43,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-06 22:29:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:29:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-06 22:29:43,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-06 22:29:43,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:29:43,218 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-06 22:29:43,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-06 22:29:43,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-06 22:29:43,222 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_set_multicast_list [2023-11-06 22:29:43,222 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_set_multicast_list [2023-11-06 22:29:43,222 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rxfill [2023-11-06 22:29:43,223 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rxfill [2023-11-06 22:29:43,224 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_start_interface [2023-11-06 22:29:43,224 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_start_interface [2023-11-06 22:29:43,224 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-06 22:29:43,230 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-06 22:29:43,230 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-06 22:29:43,230 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-06 22:29:43,230 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_clean_txring [2023-11-06 22:29:43,230 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_clean_txring [2023-11-06 22:29:43,230 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2023-11-06 22:29:43,230 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2023-11-06 22:29:43,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:29:43,231 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2023-11-06 22:29:43,231 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2023-11-06 22:29:43,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:29:43,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:29:43,231 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_login_to_vg_hub [2023-11-06 22:29:43,231 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_login_to_vg_hub [2023-11-06 22:29:43,231 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2023-11-06 22:29:43,231 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2023-11-06 22:29:43,963 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:29:43,968 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:29:44,686 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-06 22:29:47,802 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-06 22:29:48,225 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !(0 == ~tmp___4~7#1 % 18446744073709551616); [2023-11-06 22:29:48,226 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume 0 == ~tmp___4~7#1 % 18446744073709551616;#t~nondet728#1 := 0; [2023-11-06 22:29:48,226 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L8188-2: assume 0 == #t~nondet728#1 % 18446744073709551616;havoc #t~nondet728#1; [2023-11-06 22:29:48,226 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L8188-2: assume !(0 == #t~nondet728#1 % 18446744073709551616);havoc #t~nondet728#1; [2023-11-06 22:29:48,226 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L8188: assume 2096896 == ~tmp___4~7#1 % 18446744073709551616;#t~nondet728#1 := ~tmp___4~7#1; [2023-11-06 22:29:48,226 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L8188: assume !(2096896 == ~tmp___4~7#1 % 18446744073709551616);assume #t~nondet728#1 % 18446744073709551616 <= ~tmp___4~7#1 % 18446744073709551616;assume #t~nondet728#1 % 18446744073709551616 <= 2096896; [2023-11-06 22:29:48,226 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L8188-4: assume (if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0; [2023-11-06 22:29:48,227 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L8188-4: assume !((if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0); [2023-11-06 22:29:48,227 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L8189-1: assume -9223372036854775808 <= #t~ret729#1 && #t~ret729#1 <= 9223372036854775807;havoc #t~ret729#1; [2023-11-06 22:29:48,227 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L8189: SUMMARY for call #t~ret729#1 := schedule_timeout_interruptible(1); srcloc: null [2023-11-06 22:29:48,398 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:29:48,424 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:29:48,424 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:29:48,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:29:48 BoogieIcfgContainer [2023-11-06 22:29:48,429 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:29:48,431 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:29:48,431 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:29:48,435 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:29:48,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:29:39" (1/3) ... [2023-11-06 22:29:48,437 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e303d16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:29:48, skipping insertion in model container [2023-11-06 22:29:48,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:42" (2/3) ... [2023-11-06 22:29:48,437 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e303d16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:29:48, skipping insertion in model container [2023-11-06 22:29:48,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:29:48" (3/3) ... [2023-11-06 22:29:48,439 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2023-11-06 22:29:48,459 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:29:48,459 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:29:48,569 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:29:48,577 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@669a057f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:29:48,577 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:29:48,652 INFO L276 IsEmpty]: Start isEmpty. Operand has 1954 states, 1303 states have (on average 1.4205679201841903) internal successors, (1851), 1349 states have internal predecessors, (1851), 581 states have call successors, (581), 71 states have call predecessors, (581), 70 states have return successors, (574), 561 states have call predecessors, (574), 574 states have call successors, (574) [2023-11-06 22:29:48,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-06 22:29:48,705 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:29:48,706 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-06 22:29:48,707 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:29:48,712 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:29:48,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1329768702, now seen corresponding path program 1 times [2023-11-06 22:29:48,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:29:48,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237333102] [2023-11-06 22:29:48,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:29:48,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:29:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:29:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:29:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 22:29:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:29:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:29:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:29:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:29:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:49,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:29:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:29:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:29:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:29:49,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-06 22:29:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-06 22:29:49,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-06 22:29:49,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-06 22:29:49,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-06 22:29:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-06 22:29:49,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 22:29:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,985 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-11-06 22:29:49,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:29:49,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237333102] [2023-11-06 22:29:49,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237333102] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:29:49,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:29:49,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:29:49,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926218864] [2023-11-06 22:29:49,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:29:49,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:29:49,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:29:50,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:29:50,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:29:50,090 INFO L87 Difference]: Start difference. First operand has 1954 states, 1303 states have (on average 1.4205679201841903) internal successors, (1851), 1349 states have internal predecessors, (1851), 581 states have call successors, (581), 71 states have call predecessors, (581), 70 states have return successors, (574), 561 states have call predecessors, (574), 574 states have call successors, (574) Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-06 22:29:58,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:29:58,542 INFO L93 Difference]: Finished difference Result 4062 states and 6379 transitions. [2023-11-06 22:29:58,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:29:58,546 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 170 [2023-11-06 22:29:58,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:29:58,587 INFO L225 Difference]: With dead ends: 4062 [2023-11-06 22:29:58,588 INFO L226 Difference]: Without dead ends: 2093 [2023-11-06 22:29:58,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:29:58,614 INFO L413 NwaCegarLoop]: 1455 mSDtfsCounter, 2993 mSDsluCounter, 2417 mSDsCounter, 0 mSdLazyCounter, 2904 mSolverCounterSat, 2710 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3038 SdHoareTripleChecker+Valid, 3872 SdHoareTripleChecker+Invalid, 5614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2710 IncrementalHoareTripleChecker+Valid, 2904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:29:58,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3038 Valid, 3872 Invalid, 5614 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2710 Valid, 2904 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-11-06 22:29:58,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2093 states. [2023-11-06 22:29:58,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2093 to 1928. [2023-11-06 22:29:58,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1928 states, 1286 states have (on average 1.3996889580093312) internal successors, (1800), 1322 states have internal predecessors, (1800), 572 states have call successors, (572), 70 states have call predecessors, (572), 69 states have return successors, (571), 558 states have call predecessors, (571), 571 states have call successors, (571) [2023-11-06 22:29:58,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1928 states to 1928 states and 2943 transitions. [2023-11-06 22:29:58,942 INFO L78 Accepts]: Start accepts. Automaton has 1928 states and 2943 transitions. Word has length 170 [2023-11-06 22:29:58,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:29:58,943 INFO L495 AbstractCegarLoop]: Abstraction has 1928 states and 2943 transitions. [2023-11-06 22:29:58,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-06 22:29:58,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1928 states and 2943 transitions. [2023-11-06 22:29:58,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-06 22:29:58,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:29:58,955 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-06 22:29:58,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:29:58,956 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:29:58,960 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:29:58,961 INFO L85 PathProgramCache]: Analyzing trace with hash -966315636, now seen corresponding path program 1 times [2023-11-06 22:29:58,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:29:58,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865449340] [2023-11-06 22:29:58,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:29:58,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:29:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:59,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:29:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:59,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:59,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:29:59,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:59,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 22:29:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:59,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:59,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:29:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:59,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:29:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:59,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:59,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:59,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:29:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:59,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:29:59,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:59,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:59,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:29:59,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:59,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:29:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:59,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:59,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:29:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:59,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:29:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:00,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:00,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-06 22:30:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:00,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:00,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-06 22:30:00,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:00,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-06 22:30:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:00,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-06 22:30:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:00,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-06 22:30:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:00,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-06 22:30:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:00,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 22:30:00,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:00,108 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-11-06 22:30:00,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:30:00,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865449340] [2023-11-06 22:30:00,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865449340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:30:00,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:30:00,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:30:00,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816871905] [2023-11-06 22:30:00,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:30:00,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:30:00,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:30:00,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:30:00,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:30:00,113 INFO L87 Difference]: Start difference. First operand 1928 states and 2943 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-06 22:30:15,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:30:15,668 INFO L93 Difference]: Finished difference Result 6074 states and 9356 transitions. [2023-11-06 22:30:15,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:30:15,669 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 170 [2023-11-06 22:30:15,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:30:15,712 INFO L225 Difference]: With dead ends: 6074 [2023-11-06 22:30:15,712 INFO L226 Difference]: Without dead ends: 4168 [2023-11-06 22:30:15,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2023-11-06 22:30:15,733 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 8741 mSDsluCounter, 5552 mSDsCounter, 0 mSdLazyCounter, 9074 mSolverCounterSat, 7289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9027 SdHoareTripleChecker+Valid, 7079 SdHoareTripleChecker+Invalid, 16363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7289 IncrementalHoareTripleChecker+Valid, 9074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:30:15,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9027 Valid, 7079 Invalid, 16363 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7289 Valid, 9074 Invalid, 0 Unknown, 0 Unchecked, 14.4s Time] [2023-11-06 22:30:15,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4168 states. [2023-11-06 22:30:16,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4168 to 3828. [2023-11-06 22:30:16,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3828 states, 2554 states have (on average 1.4005481597494127) internal successors, (3577), 2630 states have internal predecessors, (3577), 1135 states have call successors, (1135), 139 states have call predecessors, (1135), 138 states have return successors, (1138), 1104 states have call predecessors, (1138), 1134 states have call successors, (1138) [2023-11-06 22:30:16,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3828 states to 3828 states and 5850 transitions. [2023-11-06 22:30:16,212 INFO L78 Accepts]: Start accepts. Automaton has 3828 states and 5850 transitions. Word has length 170 [2023-11-06 22:30:16,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:30:16,213 INFO L495 AbstractCegarLoop]: Abstraction has 3828 states and 5850 transitions. [2023-11-06 22:30:16,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-06 22:30:16,214 INFO L276 IsEmpty]: Start isEmpty. Operand 3828 states and 5850 transitions. [2023-11-06 22:30:16,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-11-06 22:30:16,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:30:16,229 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-06 22:30:16,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:30:16,229 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:30:16,230 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:30:16,230 INFO L85 PathProgramCache]: Analyzing trace with hash -2147175282, now seen corresponding path program 1 times [2023-11-06 22:30:16,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:30:16,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297641616] [2023-11-06 22:30:16,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:30:16,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:30:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:16,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:30:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:16,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:16,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:16,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:16,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:16,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 22:30:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:16,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:16,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:16,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:30:16,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:16,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:16,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:16,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:30:16,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:16,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:16,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:16,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:16,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:30:16,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:16,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:16,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:16,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:30:16,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:16,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:16,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:16,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-06 22:30:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:16,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:17,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-06 22:30:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:17,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-06 22:30:17,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:17,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-06 22:30:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:17,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-06 22:30:17,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:17,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:30:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:17,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-06 22:30:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:17,058 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-11-06 22:30:17,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:30:17,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297641616] [2023-11-06 22:30:17,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297641616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:30:17,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:30:17,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:30:17,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919081552] [2023-11-06 22:30:17,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:30:17,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:30:17,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:30:17,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:30:17,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:30:17,063 INFO L87 Difference]: Start difference. First operand 3828 states and 5850 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-06 22:30:32,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:30:32,547 INFO L93 Difference]: Finished difference Result 12111 states and 18661 transitions. [2023-11-06 22:30:32,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:30:32,548 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 171 [2023-11-06 22:30:32,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:30:32,628 INFO L225 Difference]: With dead ends: 12111 [2023-11-06 22:30:32,628 INFO L226 Difference]: Without dead ends: 8305 [2023-11-06 22:30:32,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2023-11-06 22:30:32,660 INFO L413 NwaCegarLoop]: 1519 mSDtfsCounter, 7611 mSDsluCounter, 7092 mSDsCounter, 0 mSdLazyCounter, 9956 mSolverCounterSat, 5517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7898 SdHoareTripleChecker+Valid, 8611 SdHoareTripleChecker+Invalid, 15473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5517 IncrementalHoareTripleChecker+Valid, 9956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:30:32,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7898 Valid, 8611 Invalid, 15473 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5517 Valid, 9956 Invalid, 0 Unknown, 0 Unchecked, 14.4s Time] [2023-11-06 22:30:32,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8305 states. [2023-11-06 22:30:33,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8305 to 7633. [2023-11-06 22:30:33,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7633 states, 5096 states have (on average 1.4005102040816326) internal successors, (7137), 5247 states have internal predecessors, (7137), 2260 states have call successors, (2260), 277 states have call predecessors, (2260), 276 states have return successors, (2273), 2200 states have call predecessors, (2273), 2259 states have call successors, (2273) [2023-11-06 22:30:33,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7633 states to 7633 states and 11670 transitions. [2023-11-06 22:30:33,489 INFO L78 Accepts]: Start accepts. Automaton has 7633 states and 11670 transitions. Word has length 171 [2023-11-06 22:30:33,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:30:33,490 INFO L495 AbstractCegarLoop]: Abstraction has 7633 states and 11670 transitions. [2023-11-06 22:30:33,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-06 22:30:33,508 INFO L276 IsEmpty]: Start isEmpty. Operand 7633 states and 11670 transitions. [2023-11-06 22:30:33,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-06 22:30:33,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:30:33,521 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-06 22:30:33,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:30:33,522 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:30:33,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:30:33,522 INFO L85 PathProgramCache]: Analyzing trace with hash 2099985905, now seen corresponding path program 1 times [2023-11-06 22:30:33,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:30:33,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361263019] [2023-11-06 22:30:33,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:30:33,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:30:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:30:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:34,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 22:30:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:30:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:30:34,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:34,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:30:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:30:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-06 22:30:34,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-06 22:30:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-06 22:30:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-06 22:30:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-06 22:30:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-06 22:30:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-06 22:30:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:34,288 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-11-06 22:30:34,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:30:34,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361263019] [2023-11-06 22:30:34,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361263019] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:30:34,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:30:34,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:30:34,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291700645] [2023-11-06 22:30:34,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:30:34,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:30:34,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:30:34,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:30:34,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:30:34,292 INFO L87 Difference]: Start difference. First operand 7633 states and 11670 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-06 22:30:47,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:30:47,788 INFO L93 Difference]: Finished difference Result 24198 states and 37283 transitions. [2023-11-06 22:30:47,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:30:47,789 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 173 [2023-11-06 22:30:47,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:30:47,962 INFO L225 Difference]: With dead ends: 24198 [2023-11-06 22:30:47,963 INFO L226 Difference]: Without dead ends: 16587 [2023-11-06 22:30:48,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2023-11-06 22:30:48,032 INFO L413 NwaCegarLoop]: 1425 mSDtfsCounter, 10031 mSDsluCounter, 5269 mSDsCounter, 0 mSdLazyCounter, 7562 mSolverCounterSat, 7964 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10318 SdHoareTripleChecker+Valid, 6694 SdHoareTripleChecker+Invalid, 15526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7964 IncrementalHoareTripleChecker+Valid, 7562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:30:48,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10318 Valid, 6694 Invalid, 15526 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7964 Valid, 7562 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2023-11-06 22:30:48,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16587 states. [2023-11-06 22:30:49,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16587 to 15249. [2023-11-06 22:30:49,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15249 states, 10186 states have (on average 1.4002552523070881) internal successors, (14263), 10486 states have internal predecessors, (14263), 4509 states have call successors, (4509), 554 states have call predecessors, (4509), 553 states have return successors, (4546), 4392 states have call predecessors, (4546), 4508 states have call successors, (4546) [2023-11-06 22:30:49,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15249 states to 15249 states and 23318 transitions. [2023-11-06 22:30:50,001 INFO L78 Accepts]: Start accepts. Automaton has 15249 states and 23318 transitions. Word has length 173 [2023-11-06 22:30:50,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:30:50,002 INFO L495 AbstractCegarLoop]: Abstraction has 15249 states and 23318 transitions. [2023-11-06 22:30:50,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-06 22:30:50,002 INFO L276 IsEmpty]: Start isEmpty. Operand 15249 states and 23318 transitions. [2023-11-06 22:30:50,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-06 22:30:50,017 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:30:50,017 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-06 22:30:50,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:30:50,018 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:30:50,018 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:30:50,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1435809009, now seen corresponding path program 1 times [2023-11-06 22:30:50,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:30:50,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151033731] [2023-11-06 22:30:50,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:30:50,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:30:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:30:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 22:30:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:30:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:30:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:30:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:50,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:30:50,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-06 22:30:50,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-06 22:30:50,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-06 22:30:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-06 22:30:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-06 22:30:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-11-06 22:30:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-06 22:30:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:50,783 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-11-06 22:30:50,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:30:50,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151033731] [2023-11-06 22:30:50,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151033731] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:30:50,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:30:50,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:30:50,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482179401] [2023-11-06 22:30:50,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:30:50,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:30:50,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:30:50,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:30:50,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:30:50,787 INFO L87 Difference]: Start difference. First operand 15249 states and 23318 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-06 22:31:05,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:31:05,506 INFO L93 Difference]: Finished difference Result 48087 states and 74073 transitions. [2023-11-06 22:31:05,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:31:05,507 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 172 [2023-11-06 22:31:05,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:31:05,774 INFO L225 Difference]: With dead ends: 48087 [2023-11-06 22:31:05,774 INFO L226 Difference]: Without dead ends: 32860 [2023-11-06 22:31:05,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2023-11-06 22:31:05,871 INFO L413 NwaCegarLoop]: 1423 mSDtfsCounter, 8126 mSDsluCounter, 5995 mSDsCounter, 0 mSdLazyCounter, 8102 mSolverCounterSat, 6165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8412 SdHoareTripleChecker+Valid, 7418 SdHoareTripleChecker+Invalid, 14267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6165 IncrementalHoareTripleChecker+Valid, 8102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:31:05,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8412 Valid, 7418 Invalid, 14267 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6165 Valid, 8102 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2023-11-06 22:31:05,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32860 states. [2023-11-06 22:31:09,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32860 to 30291. [2023-11-06 22:31:09,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30291 states, 20230 states have (on average 1.3998022738507168) internal successors, (28318), 20820 states have internal predecessors, (28318), 8958 states have call successors, (8958), 1103 states have call predecessors, (8958), 1102 states have return successors, (9051), 8729 states have call predecessors, (9051), 8957 states have call successors, (9051) [2023-11-06 22:31:09,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30291 states to 30291 states and 46327 transitions. [2023-11-06 22:31:09,497 INFO L78 Accepts]: Start accepts. Automaton has 30291 states and 46327 transitions. Word has length 172 [2023-11-06 22:31:09,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:31:09,498 INFO L495 AbstractCegarLoop]: Abstraction has 30291 states and 46327 transitions. [2023-11-06 22:31:09,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-06 22:31:09,498 INFO L276 IsEmpty]: Start isEmpty. Operand 30291 states and 46327 transitions. [2023-11-06 22:31:09,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-11-06 22:31:09,512 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:31:09,513 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-06 22:31:09,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:31:09,513 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:31:09,514 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:31:09,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1380411738, now seen corresponding path program 1 times [2023-11-06 22:31:09,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:31:09,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662575337] [2023-11-06 22:31:09,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:31:09,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:31:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:31:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:10,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:31:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 22:31:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:31:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:31:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:31:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:31:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:31:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:31:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:10,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:31:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:31:10,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-06 22:31:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-06 22:31:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-06 22:31:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-06 22:31:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-06 22:31:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-11-06 22:31:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-06 22:31:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-06 22:31:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:10,641 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2023-11-06 22:31:10,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:31:10,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662575337] [2023-11-06 22:31:10,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662575337] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:31:10,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994151696] [2023-11-06 22:31:10,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:31:10,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:31:10,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:31:10,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:31:10,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:31:11,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:11,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 2226 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:31:11,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:31:11,694 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2023-11-06 22:31:11,694 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:31:11,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994151696] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:31:11,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:31:11,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2023-11-06 22:31:11,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940351139] [2023-11-06 22:31:11,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:31:11,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:31:11,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:31:11,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:31:11,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:31:11,698 INFO L87 Difference]: Start difference. First operand 30291 states and 46327 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-06 22:31:13,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:31:13,306 INFO L93 Difference]: Finished difference Result 30310 states and 46361 transitions. [2023-11-06 22:31:13,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:31:13,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 183 [2023-11-06 22:31:13,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:31:13,490 INFO L225 Difference]: With dead ends: 30310 [2023-11-06 22:31:13,491 INFO L226 Difference]: Without dead ends: 30307 [2023-11-06 22:31:13,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:31:13,511 INFO L413 NwaCegarLoop]: 2942 mSDtfsCounter, 0 mSDsluCounter, 2937 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5879 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:31:13,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5879 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:31:13,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30307 states. [2023-11-06 22:31:16,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30307 to 30307. [2023-11-06 22:31:16,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30307 states, 20246 states have (on average 1.3994863182850934) internal successors, (28334), 20836 states have internal predecessors, (28334), 8958 states have call successors, (8958), 1103 states have call predecessors, (8958), 1102 states have return successors, (9051), 8729 states have call predecessors, (9051), 8957 states have call successors, (9051) [2023-11-06 22:31:16,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30307 states to 30307 states and 46343 transitions. [2023-11-06 22:31:16,516 INFO L78 Accepts]: Start accepts. Automaton has 30307 states and 46343 transitions. Word has length 183 [2023-11-06 22:31:16,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:31:16,517 INFO L495 AbstractCegarLoop]: Abstraction has 30307 states and 46343 transitions. [2023-11-06 22:31:16,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-06 22:31:16,518 INFO L276 IsEmpty]: Start isEmpty. Operand 30307 states and 46343 transitions. [2023-11-06 22:31:16,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-11-06 22:31:16,533 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:31:16,533 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-06 22:31:16,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:31:16,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:31:16,749 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:31:16,749 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:31:16,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1097926017, now seen corresponding path program 1 times [2023-11-06 22:31:16,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:31:16,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392106362] [2023-11-06 22:31:16,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:31:16,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:31:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:31:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:31:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 22:31:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:31:17,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:31:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:31:17,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:31:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:17,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:31:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:31:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:31:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:31:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-06 22:31:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:17,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-06 22:31:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-06 22:31:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-06 22:31:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-06 22:31:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-11-06 22:31:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-06 22:31:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-06 22:31:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:17,870 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2023-11-06 22:31:17,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:31:17,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392106362] [2023-11-06 22:31:17,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392106362] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:31:17,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047994945] [2023-11-06 22:31:17,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:31:17,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:31:17,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:31:17,873 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:31:17,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:31:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:18,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 2231 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:31:18,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:31:18,815 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2023-11-06 22:31:18,815 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:31:18,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047994945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:31:18,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:31:18,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2023-11-06 22:31:18,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330100300] [2023-11-06 22:31:18,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:31:18,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:31:18,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:31:18,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:31:18,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:31:18,818 INFO L87 Difference]: Start difference. First operand 30307 states and 46343 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-06 22:31:20,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:31:20,969 INFO L93 Difference]: Finished difference Result 60787 states and 92989 transitions. [2023-11-06 22:31:20,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:31:20,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 185 [2023-11-06 22:31:20,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:31:21,267 INFO L225 Difference]: With dead ends: 60787 [2023-11-06 22:31:21,268 INFO L226 Difference]: Without dead ends: 30502 [2023-11-06 22:31:21,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:31:21,389 INFO L413 NwaCegarLoop]: 2943 mSDtfsCounter, 13 mSDsluCounter, 2933 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 5876 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:31:21,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 5876 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:31:21,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30502 states. [2023-11-06 22:31:23,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30502 to 30322. [2023-11-06 22:31:23,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30322 states, 20261 states have (on average 1.399190563150881) internal successors, (28349), 20851 states have internal predecessors, (28349), 8958 states have call successors, (8958), 1103 states have call predecessors, (8958), 1102 states have return successors, (9051), 8729 states have call predecessors, (9051), 8957 states have call successors, (9051) [2023-11-06 22:31:23,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30322 states to 30322 states and 46358 transitions. [2023-11-06 22:31:23,897 INFO L78 Accepts]: Start accepts. Automaton has 30322 states and 46358 transitions. Word has length 185 [2023-11-06 22:31:23,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:31:23,897 INFO L495 AbstractCegarLoop]: Abstraction has 30322 states and 46358 transitions. [2023-11-06 22:31:23,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-06 22:31:23,898 INFO L276 IsEmpty]: Start isEmpty. Operand 30322 states and 46358 transitions. [2023-11-06 22:31:23,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-06 22:31:23,913 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:31:23,914 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2023-11-06 22:31:23,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:31:24,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:31:24,124 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:31:24,125 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:31:24,125 INFO L85 PathProgramCache]: Analyzing trace with hash -217826954, now seen corresponding path program 1 times [2023-11-06 22:31:24,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:31:24,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491964244] [2023-11-06 22:31:24,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:31:24,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:31:24,278 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:31:24,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2145875226] [2023-11-06 22:31:24,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:31:24,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:31:24,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:31:24,280 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:31:24,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:31:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:25,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:31:25,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:31:25,470 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2023-11-06 22:31:25,470 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:31:25,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:31:25,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491964244] [2023-11-06 22:31:25,471 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:31:25,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145875226] [2023-11-06 22:31:25,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145875226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:31:25,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:31:25,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:31:25,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154863263] [2023-11-06 22:31:25,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:31:25,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:31:25,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:31:25,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:31:25,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:31:25,474 INFO L87 Difference]: Start difference. First operand 30322 states and 46358 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-06 22:31:27,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:31:27,261 INFO L93 Difference]: Finished difference Result 60637 states and 92749 transitions. [2023-11-06 22:31:27,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:31:27,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 191 [2023-11-06 22:31:27,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:31:27,443 INFO L225 Difference]: With dead ends: 60637 [2023-11-06 22:31:27,443 INFO L226 Difference]: Without dead ends: 30337 [2023-11-06 22:31:27,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:31:27,823 INFO L413 NwaCegarLoop]: 2942 mSDtfsCounter, 0 mSDsluCounter, 2935 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5877 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:31:27,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5877 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:31:27,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30337 states. [2023-11-06 22:31:30,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30337 to 30337. [2023-11-06 22:31:30,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30337 states, 20276 states have (on average 1.398895245610574) internal successors, (28364), 20866 states have internal predecessors, (28364), 8958 states have call successors, (8958), 1103 states have call predecessors, (8958), 1102 states have return successors, (9051), 8729 states have call predecessors, (9051), 8957 states have call successors, (9051) [2023-11-06 22:31:30,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30337 states to 30337 states and 46373 transitions. [2023-11-06 22:31:30,409 INFO L78 Accepts]: Start accepts. Automaton has 30337 states and 46373 transitions. Word has length 191 [2023-11-06 22:31:30,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:31:30,410 INFO L495 AbstractCegarLoop]: Abstraction has 30337 states and 46373 transitions. [2023-11-06 22:31:30,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-06 22:31:30,411 INFO L276 IsEmpty]: Start isEmpty. Operand 30337 states and 46373 transitions. [2023-11-06 22:31:30,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-06 22:31:30,428 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:31:30,429 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2023-11-06 22:31:30,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:31:30,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:31:30,640 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:31:30,640 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:31:30,641 INFO L85 PathProgramCache]: Analyzing trace with hash 836964699, now seen corresponding path program 1 times [2023-11-06 22:31:30,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:31:30,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954046873] [2023-11-06 22:31:30,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:31:30,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:31:30,799 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:31:30,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1274422924] [2023-11-06 22:31:30,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:31:30,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:31:30,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:31:30,801 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:31:30,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:31:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:31,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 2269 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:31:31,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:31:31,756 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2023-11-06 22:31:31,757 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:31:31,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:31:31,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954046873] [2023-11-06 22:31:31,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:31:31,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274422924] [2023-11-06 22:31:31,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274422924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:31:31,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:31:31,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:31:31,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470056870] [2023-11-06 22:31:31,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:31:31,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:31:31,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:31:31,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:31:31,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:31:31,761 INFO L87 Difference]: Start difference. First operand 30337 states and 46373 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-06 22:31:34,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:31:34,600 INFO L93 Difference]: Finished difference Result 75897 states and 116013 transitions. [2023-11-06 22:31:34,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:31:34,601 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 193 [2023-11-06 22:31:34,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:31:35,026 INFO L225 Difference]: With dead ends: 75897 [2023-11-06 22:31:35,026 INFO L226 Difference]: Without dead ends: 45582 [2023-11-06 22:31:35,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:31:35,119 INFO L413 NwaCegarLoop]: 4216 mSDtfsCounter, 2963 mSDsluCounter, 19769 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2967 SdHoareTripleChecker+Valid, 23985 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:31:35,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2967 Valid, 23985 Invalid, 80 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:31:35,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45582 states. [2023-11-06 22:31:38,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45582 to 45433. [2023-11-06 22:31:38,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45433 states, 30374 states have (on average 1.3994205570553764) internal successors, (42506), 31266 states have internal predecessors, (42506), 13403 states have call successors, (13403), 1648 states have call predecessors, (13403), 1655 states have return successors, (13586), 13058 states have call predecessors, (13586), 13402 states have call successors, (13586) [2023-11-06 22:31:38,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45433 states to 45433 states and 69495 transitions. [2023-11-06 22:31:38,629 INFO L78 Accepts]: Start accepts. Automaton has 45433 states and 69495 transitions. Word has length 193 [2023-11-06 22:31:38,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:31:38,630 INFO L495 AbstractCegarLoop]: Abstraction has 45433 states and 69495 transitions. [2023-11-06 22:31:38,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-06 22:31:38,631 INFO L276 IsEmpty]: Start isEmpty. Operand 45433 states and 69495 transitions. [2023-11-06 22:31:38,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-06 22:31:38,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:31:38,662 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2023-11-06 22:31:38,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:31:38,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:31:38,875 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:31:38,876 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:31:38,876 INFO L85 PathProgramCache]: Analyzing trace with hash -210934562, now seen corresponding path program 1 times [2023-11-06 22:31:38,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:31:38,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068821707] [2023-11-06 22:31:38,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:31:38,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:31:39,066 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:31:39,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [39926929] [2023-11-06 22:31:39,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:31:39,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:31:39,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:31:39,069 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:31:39,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:31:39,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:39,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 2271 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:31:39,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:31:40,072 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2023-11-06 22:31:40,072 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:31:40,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:31:40,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068821707] [2023-11-06 22:31:40,073 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:31:40,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39926929] [2023-11-06 22:31:40,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39926929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:31:40,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:31:40,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:31:40,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375555060] [2023-11-06 22:31:40,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:31:40,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:31:40,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:31:40,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:31:40,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:31:40,077 INFO L87 Difference]: Start difference. First operand 45433 states and 69495 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-06 22:31:43,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:31:43,627 INFO L93 Difference]: Finished difference Result 106142 states and 162303 transitions. [2023-11-06 22:31:43,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:31:43,628 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 194 [2023-11-06 22:31:43,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:31:43,947 INFO L225 Difference]: With dead ends: 106142 [2023-11-06 22:31:43,948 INFO L226 Difference]: Without dead ends: 60731 [2023-11-06 22:31:44,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:31:44,154 INFO L413 NwaCegarLoop]: 4335 mSDtfsCounter, 2963 mSDsluCounter, 20233 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2967 SdHoareTripleChecker+Valid, 24568 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:31:44,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2967 Valid, 24568 Invalid, 82 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:31:44,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60731 states. [2023-11-06 22:31:48,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60731 to 60561. [2023-11-06 22:31:48,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60561 states, 40492 states have (on average 1.3994863182850934) internal successors, (56668), 41702 states have internal predecessors, (56668), 17848 states have call successors, (17848), 2193 states have call predecessors, (17848), 2220 states have return successors, (18133), 17383 states have call predecessors, (18133), 17847 states have call successors, (18133) [2023-11-06 22:31:49,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60561 states to 60561 states and 92649 transitions. [2023-11-06 22:31:49,177 INFO L78 Accepts]: Start accepts. Automaton has 60561 states and 92649 transitions. Word has length 194 [2023-11-06 22:31:49,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:31:49,178 INFO L495 AbstractCegarLoop]: Abstraction has 60561 states and 92649 transitions. [2023-11-06 22:31:49,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-06 22:31:49,178 INFO L276 IsEmpty]: Start isEmpty. Operand 60561 states and 92649 transitions. [2023-11-06 22:31:49,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-11-06 22:31:49,213 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:31:49,213 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2023-11-06 22:31:49,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:31:49,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-06 22:31:49,425 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:31:49,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:31:49,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1804655102, now seen corresponding path program 1 times [2023-11-06 22:31:49,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:31:49,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288975174] [2023-11-06 22:31:49,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:31:49,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:31:49,598 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:31:49,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1832633926] [2023-11-06 22:31:49,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:31:49,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:31:49,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:31:49,600 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:31:49,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9543c6f-9e28-444f-9e61-1a11db626af4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:31:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:50,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 2273 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:31:50,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:31:50,618 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2023-11-06 22:31:50,619 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:31:50,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:31:50,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288975174] [2023-11-06 22:31:50,619 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:31:50,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832633926] [2023-11-06 22:31:50,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832633926] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:31:50,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:31:50,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:31:50,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624332916] [2023-11-06 22:31:50,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:31:50,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:31:50,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:31:50,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:31:50,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:31:50,626 INFO L87 Difference]: Start difference. First operand 60561 states and 92649 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18)