./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2c6aa6e54aa03d80dc4005d195dc80cde5e772aed59b94df03248a4abb3fc0ec --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:22:29,976 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:22:30,038 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 10:22:30,042 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:22:30,043 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:22:30,066 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:22:30,067 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:22:30,067 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:22:30,067 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:22:30,068 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:22:30,068 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:22:30,068 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:22:30,068 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:22:30,068 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:22:30,068 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:22:30,069 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:22:30,069 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:22:30,069 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:22:30,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:22:30,069 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:22:30,069 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:22:30,069 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:22:30,069 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:22:30,070 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:22:30,070 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:22:30,070 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:22:30,070 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:22:30,070 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:22:30,070 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:22:30,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:22:30,070 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:22:30,071 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:22:30,071 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:22:30,071 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:22:30,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:22:30,071 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:22:30,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:22:30,071 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:22:30,071 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:22:30,071 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:22:30,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:22:30,072 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:22:30,072 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:22:30,072 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:22:30,072 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:22:30,072 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c6aa6e54aa03d80dc4005d195dc80cde5e772aed59b94df03248a4abb3fc0ec [2024-12-02 10:22:30,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:22:30,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:22:30,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:22:30,310 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:22:30,311 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:22:30,312 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2024-12-02 10:22:32,926 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/data/d83731cf3/11c52dd909654d3aaae09b38866fe45c/FLAG3e38016ac [2024-12-02 10:22:33,344 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:22:33,344 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2024-12-02 10:22:33,375 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/data/d83731cf3/11c52dd909654d3aaae09b38866fe45c/FLAG3e38016ac [2024-12-02 10:22:33,484 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/data/d83731cf3/11c52dd909654d3aaae09b38866fe45c [2024-12-02 10:22:33,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:22:33,487 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:22:33,488 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:22:33,489 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:22:33,493 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:22:33,493 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:22:33" (1/1) ... [2024-12-02 10:22:33,494 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cd23c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:22:33, skipping insertion in model container [2024-12-02 10:22:33,494 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:22:33" (1/1) ... [2024-12-02 10:22:33,594 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:22:34,848 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i[284671,284684] [2024-12-02 10:22:34,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:22:34,935 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:22:35,079 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [6219-6225] [2024-12-02 10:22:35,081 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "bts %2,%1\n\t" "sbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [6232-6239] [2024-12-02 10:22:35,082 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [6248] [2024-12-02 10:22:35,084 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n" ".pushsection __bug_table,\"a\"\n" "2:\t.long 1b - 2b, %c0 - 2b\n" "\t.word %c1, 0\n" "\t.org 2b+%c2\n" ".popsection": : "i" ("/anthill/stuff/tacas-comp/inst/current/envs/linux-3.0.1/linux-3.0.1/arch/x86/include/asm/paravirt.h"), "i" (853), "i" (sizeof(struct bug_entry ))); [6305-6311] [2024-12-02 10:22:35,085 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("" "771:\n\t" "call *%c[paravirt_opptr];" "\n" "772:\n" ".pushsection .parainstructions,\"a\"\n" " " ".balign 8" " " "\n" " " ".quad" " " " 771b\n" " .byte " "%c[paravirt_typenum]" "\n" " .byte 772b-771b\n" " .short " "%c[paravirt_clobber]" "\n" ".popsection\n" "": "=a" (__eax): [paravirt_typenum] "i" ((unsigned long )((unsigned int )(& ((struct paravirt_patch_template *)0)->pv_irq_ops.save_fl.func)) / sizeof(void *)), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [6331-6355] [2024-12-02 10:22:35,086 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("" "771:\n\t" "call *%c[paravirt_opptr];" "\n" "772:\n" ".pushsection .parainstructions,\"a\"\n" " " ".balign 8" " " "\n" " " ".quad" " " " 771b\n" " .byte " "%c[paravirt_typenum]" "\n" " .byte 772b-771b\n" " .short " "%c[paravirt_clobber]" "\n" ".popsection\n" "": "=a" (__eax): [paravirt_typenum] "i" ((unsigned long )((unsigned int )(& ((struct paravirt_patch_template *)0)->pv_irq_ops.save_fl.func)) / sizeof(void *)), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [6358-6382] [2024-12-02 10:22:35,252 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i[284671,284684] [2024-12-02 10:22:35,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:22:35,325 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:22:35,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:22:35 WrapperNode [2024-12-02 10:22:35,325 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:22:35,326 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:22:35,326 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:22:35,326 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:22:35,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:22:35" (1/1) ... [2024-12-02 10:22:35,376 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:22:35" (1/1) ... [2024-12-02 10:22:35,484 INFO L138 Inliner]: procedures = 177, calls = 1697, calls flagged for inlining = 87, calls inlined = 82, statements flattened = 4414 [2024-12-02 10:22:35,485 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:22:35,485 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:22:35,485 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:22:35,485 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:22:35,493 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:22:35" (1/1) ... [2024-12-02 10:22:35,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:22:35" (1/1) ... [2024-12-02 10:22:35,513 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:22:35" (1/1) ... [2024-12-02 10:22:35,841 INFO L175 MemorySlicer]: Split 812 memory accesses to 20 slices as follows [2, 8, 5, 1, 9, 16, 42, 8, 5, 110, 3, 2, 470, 8, 3, 94, 8, 16, 1, 1]. 58 percent of accesses are in the largest equivalence class. The 175 initializations are split as follows [2, 0, 0, 1, 0, 16, 0, 0, 0, 110, 0, 0, 0, 8, 0, 14, 8, 16, 0, 0]. The 354 writes are split as follows [0, 1, 0, 0, 2, 0, 42, 2, 0, 0, 2, 0, 269, 0, 1, 35, 0, 0, 0, 0]. [2024-12-02 10:22:35,841 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:22:35" (1/1) ... [2024-12-02 10:22:35,842 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:22:35" (1/1) ... [2024-12-02 10:22:35,922 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:22:35" (1/1) ... [2024-12-02 10:22:35,928 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:22:35" (1/1) ... [2024-12-02 10:22:35,947 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:22:35" (1/1) ... [2024-12-02 10:22:35,980 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:22:35" (1/1) ... [2024-12-02 10:22:35,991 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:22:35" (1/1) ... [2024-12-02 10:22:36,013 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:22:36,014 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:22:36,014 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:22:36,014 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:22:36,015 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:22:35" (1/1) ... [2024-12-02 10:22:36,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:22:36,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:22:36,039 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:22:36,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:22:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-12-02 10:22:36,062 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-12-02 10:22:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2024-12-02 10:22:36,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2024-12-02 10:22:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-12-02 10:22:36,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-12-02 10:22:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2024-12-02 10:22:36,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2024-12-02 10:22:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 10:22:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 10:22:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 10:22:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 10:22:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 10:22:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 10:22:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 10:22:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 10:22:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 10:22:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-02 10:22:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-12-02 10:22:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-12-02 10:22:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-12-02 10:22:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-12-02 10:22:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-12-02 10:22:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-12-02 10:22:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-12-02 10:22:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-12-02 10:22:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-12-02 10:22:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-12-02 10:22:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2024-12-02 10:22:36,064 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2024-12-02 10:22:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2024-12-02 10:22:36,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2024-12-02 10:22:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-12-02 10:22:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-12-02 10:22:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-12-02 10:22:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-12-02 10:22:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-12-02 10:22:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-12-02 10:22:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-12-02 10:22:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-12-02 10:22:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-12-02 10:22:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-12-02 10:22:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-12-02 10:22:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2024-12-02 10:22:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2024-12-02 10:22:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2024-12-02 10:22:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2024-12-02 10:22:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#15 [2024-12-02 10:22:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#16 [2024-12-02 10:22:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#17 [2024-12-02 10:22:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#18 [2024-12-02 10:22:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#19 [2024-12-02 10:22:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2024-12-02 10:22:36,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2024-12-02 10:22:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 10:22:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 10:22:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 10:22:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 10:22:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 10:22:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 10:22:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 10:22:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 10:22:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 10:22:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-02 10:22:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-12-02 10:22:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-12-02 10:22:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-12-02 10:22:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-12-02 10:22:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-12-02 10:22:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-12-02 10:22:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-12-02 10:22:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-12-02 10:22:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2024-12-02 10:22:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2024-12-02 10:22:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 10:22:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 10:22:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 10:22:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 10:22:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 10:22:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 10:22:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 10:22:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 10:22:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 10:22:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 10:22:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 10:22:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 10:22:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 10:22:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 10:22:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-12-02 10:22:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-12-02 10:22:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-12-02 10:22:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-12-02 10:22:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-12-02 10:22:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-12-02 10:22:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2024-12-02 10:22:36,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2024-12-02 10:22:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2024-12-02 10:22:36,068 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2024-12-02 10:22:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2024-12-02 10:22:36,068 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2024-12-02 10:22:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-12-02 10:22:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-12-02 10:22:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-12-02 10:22:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-12-02 10:22:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-12-02 10:22:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-12-02 10:22:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-12-02 10:22:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-12-02 10:22:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-12-02 10:22:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2024-12-02 10:22:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2024-12-02 10:22:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2024-12-02 10:22:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2024-12-02 10:22:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#13 [2024-12-02 10:22:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#14 [2024-12-02 10:22:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#15 [2024-12-02 10:22:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#16 [2024-12-02 10:22:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#17 [2024-12-02 10:22:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#18 [2024-12-02 10:22:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#19 [2024-12-02 10:22:36,069 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-12-02 10:22:36,069 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-12-02 10:22:36,069 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-12-02 10:22:36,069 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-12-02 10:22:36,069 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-12-02 10:22:36,069 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-12-02 10:22:36,069 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-12-02 10:22:36,069 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-12-02 10:22:36,069 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-12-02 10:22:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2024-12-02 10:22:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2024-12-02 10:22:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2024-12-02 10:22:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2024-12-02 10:22:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#13 [2024-12-02 10:22:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#14 [2024-12-02 10:22:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#15 [2024-12-02 10:22:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#16 [2024-12-02 10:22:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#17 [2024-12-02 10:22:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#18 [2024-12-02 10:22:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#19 [2024-12-02 10:22:36,070 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-12-02 10:22:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-12-02 10:22:36,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 10:22:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 10:22:36,070 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2024-12-02 10:22:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2024-12-02 10:22:36,070 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2024-12-02 10:22:36,071 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2024-12-02 10:22:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-12-02 10:22:36,071 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-12-02 10:22:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2024-12-02 10:22:36,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2024-12-02 10:22:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2024-12-02 10:22:36,071 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2024-12-02 10:22:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2024-12-02 10:22:36,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2024-12-02 10:22:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 10:22:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 10:22:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 10:22:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 10:22:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 10:22:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 10:22:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 10:22:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 10:22:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 10:22:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 10:22:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 10:22:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 10:22:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 10:22:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 10:22:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-12-02 10:22:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-12-02 10:22:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-12-02 10:22:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-12-02 10:22:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-12-02 10:22:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-12-02 10:22:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-12-02 10:22:36,072 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-12-02 10:22:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2024-12-02 10:22:36,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2024-12-02 10:22:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2024-12-02 10:22:36,072 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2024-12-02 10:22:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2024-12-02 10:22:36,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2024-12-02 10:22:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2024-12-02 10:22:36,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2024-12-02 10:22:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit [2024-12-02 10:22:36,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit [2024-12-02 10:22:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2024-12-02 10:22:36,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2024-12-02 10:22:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2024-12-02 10:22:36,073 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2024-12-02 10:22:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 10:22:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-12-02 10:22:36,073 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-12-02 10:22:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init [2024-12-02 10:22:36,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init [2024-12-02 10:22:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:22:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 10:22:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 10:22:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 10:22:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 10:22:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 10:22:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 10:22:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 10:22:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 10:22:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 10:22:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 10:22:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 10:22:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-02 10:22:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-12-02 10:22:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-12-02 10:22:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-12-02 10:22:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-12-02 10:22:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-12-02 10:22:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-12-02 10:22:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-12-02 10:22:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-12-02 10:22:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-12-02 10:22:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2024-12-02 10:22:36,074 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2024-12-02 10:22:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-12-02 10:22:36,074 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-12-02 10:22:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 10:22:36,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 10:22:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 10:22:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 10:22:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 10:22:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 10:22:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 10:22:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 10:22:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 10:22:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 10:22:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 10:22:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 10:22:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-02 10:22:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-12-02 10:22:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-12-02 10:22:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-12-02 10:22:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-12-02 10:22:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-12-02 10:22:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-12-02 10:22:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-12-02 10:22:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-12-02 10:22:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-12-02 10:22:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2024-12-02 10:22:36,075 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2024-12-02 10:22:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-12-02 10:22:36,075 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-12-02 10:22:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2024-12-02 10:22:36,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2024-12-02 10:22:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 10:22:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 10:22:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 10:22:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 10:22:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 10:22:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 10:22:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 10:22:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 10:22:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 10:22:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-12-02 10:22:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-12-02 10:22:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-12-02 10:22:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-12-02 10:22:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-12-02 10:22:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-12-02 10:22:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-12-02 10:22:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-12-02 10:22:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-12-02 10:22:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-12-02 10:22:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-12-02 10:22:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-12-02 10:22:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2024-12-02 10:22:36,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2024-12-02 10:22:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-02 10:22:36,077 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-02 10:22:36,077 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2024-12-02 10:22:36,077 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2024-12-02 10:22:36,077 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2024-12-02 10:22:36,077 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2024-12-02 10:22:36,077 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2024-12-02 10:22:36,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2024-12-02 10:22:36,077 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-12-02 10:22:36,077 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-12-02 10:22:36,077 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-12-02 10:22:36,077 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-12-02 10:22:36,077 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2024-12-02 10:22:36,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2024-12-02 10:22:36,077 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2024-12-02 10:22:36,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2024-12-02 10:22:36,077 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-12-02 10:22:36,077 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-12-02 10:22:36,077 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-12-02 10:22:36,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-12-02 10:22:36,077 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2024-12-02 10:22:36,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2024-12-02 10:22:36,077 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2024-12-02 10:22:36,078 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2024-12-02 10:22:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2024-12-02 10:22:36,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2024-12-02 10:22:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2024-12-02 10:22:36,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2024-12-02 10:22:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2024-12-02 10:22:36,078 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2024-12-02 10:22:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:22:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 10:22:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 10:22:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 10:22:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 10:22:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 10:22:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 10:22:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 10:22:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 10:22:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 10:22:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 10:22:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 10:22:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 10:22:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 10:22:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 10:22:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 10:22:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 10:22:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 10:22:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 10:22:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-12-02 10:22:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2024-12-02 10:22:36,079 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2024-12-02 10:22:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2024-12-02 10:22:36,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2024-12-02 10:22:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2024-12-02 10:22:36,079 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2024-12-02 10:22:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2024-12-02 10:22:36,079 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2024-12-02 10:22:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-12-02 10:22:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-12-02 10:22:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-12-02 10:22:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-12-02 10:22:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-12-02 10:22:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-12-02 10:22:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-12-02 10:22:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-12-02 10:22:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-12-02 10:22:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-12-02 10:22:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-12-02 10:22:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2024-12-02 10:22:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2024-12-02 10:22:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2024-12-02 10:22:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2024-12-02 10:22:36,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#15 [2024-12-02 10:22:36,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#16 [2024-12-02 10:22:36,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#17 [2024-12-02 10:22:36,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#18 [2024-12-02 10:22:36,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#19 [2024-12-02 10:22:36,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:22:36,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:22:36,824 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:22:36,826 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:22:37,728 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2024-12-02 10:22:38,332 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-12-02 10:22:39,368 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##282: assume !false; [2024-12-02 10:22:39,368 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##281: assume false; [2024-12-02 10:22:39,408 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-12-02 10:22:39,409 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-12-02 10:22:43,940 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume !false; [2024-12-02 10:22:43,940 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##89: assume false; [2024-12-02 10:22:43,940 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2024-12-02 10:22:43,940 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2024-12-02 10:22:43,940 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint L8653: ttusb_dec_start_feed_#res#1 := 0; [2024-12-02 10:22:44,851 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-12-02 10:22:45,006 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2024-12-02 10:22:45,006 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2024-12-02 10:22:45,176 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-12-02 10:22:50,268 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2024-12-02 10:22:50,269 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2024-12-02 10:22:50,721 INFO L? ?]: Removed 1555 outVars from TransFormulas that were not future-live. [2024-12-02 10:22:50,721 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:22:50,749 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:22:50,749 INFO L312 CfgBuilder]: Removed 77 assume(true) statements. [2024-12-02 10:22:50,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:22:50 BoogieIcfgContainer [2024-12-02 10:22:50,749 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:22:50,751 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:22:50,751 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:22:50,756 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:22:50,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:22:33" (1/3) ... [2024-12-02 10:22:50,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da79617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:22:50, skipping insertion in model container [2024-12-02 10:22:50,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:22:35" (2/3) ... [2024-12-02 10:22:50,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da79617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:22:50, skipping insertion in model container [2024-12-02 10:22:50,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:22:50" (3/3) ... [2024-12-02 10:22:50,758 INFO L128 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2024-12-02 10:22:50,772 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:22:50,775 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i that has 75 procedures, 1278 locations, 1 initial locations, 77 loop locations, and 1 error locations. [2024-12-02 10:22:50,847 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:22:50,857 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@41714485, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:22:50,857 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 10:22:50,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 1182 states, 870 states have (on average 1.3942528735632185) internal successors, (1213), 883 states have internal predecessors, (1213), 267 states have call successors, (267), 55 states have call predecessors, (267), 54 states have return successors, (265), 259 states have call predecessors, (265), 265 states have call successors, (265) [2024-12-02 10:22:50,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-02 10:22:50,870 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:22:50,870 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:22:50,871 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:22:50,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:22:50,875 INFO L85 PathProgramCache]: Analyzing trace with hash 2123436365, now seen corresponding path program 1 times [2024-12-02 10:22:50,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:22:50,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917052256] [2024-12-02 10:22:50,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:22:50,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:22:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:22:56,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:22:56,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:22:56,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917052256] [2024-12-02 10:22:56,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917052256] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:22:56,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:22:56,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:22:56,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111082404] [2024-12-02 10:22:56,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:22:56,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:22:56,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:22:56,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:22:56,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:22:56,917 INFO L87 Difference]: Start difference. First operand has 1182 states, 870 states have (on average 1.3942528735632185) internal successors, (1213), 883 states have internal predecessors, (1213), 267 states have call successors, (267), 55 states have call predecessors, (267), 54 states have return successors, (265), 259 states have call predecessors, (265), 265 states have call successors, (265) Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 10:22:57,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:22:57,208 INFO L93 Difference]: Finished difference Result 2346 states and 3520 transitions. [2024-12-02 10:22:57,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:22:57,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-12-02 10:22:57,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:22:57,228 INFO L225 Difference]: With dead ends: 2346 [2024-12-02 10:22:57,228 INFO L226 Difference]: Without dead ends: 1169 [2024-12-02 10:22:57,238 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:22:57,241 INFO L435 NwaCegarLoop]: 1640 mSDtfsCounter, 0 mSDsluCounter, 4913 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6553 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:22:57,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6553 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:22:57,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2024-12-02 10:22:57,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1169. [2024-12-02 10:22:57,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 849 states have (on average 1.303886925795053) internal successors, (1107), 865 states have internal predecessors, (1107), 265 states have call successors, (265), 54 states have call predecessors, (265), 54 states have return successors, (262), 256 states have call predecessors, (262), 261 states have call successors, (262) [2024-12-02 10:22:57,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1634 transitions. [2024-12-02 10:22:57,350 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1634 transitions. Word has length 16 [2024-12-02 10:22:57,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:22:57,351 INFO L471 AbstractCegarLoop]: Abstraction has 1169 states and 1634 transitions. [2024-12-02 10:22:57,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 10:22:57,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1634 transitions. [2024-12-02 10:22:57,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-02 10:22:57,352 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:22:57,352 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:22:57,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:22:57,353 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:22:57,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:22:57,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1907643002, now seen corresponding path program 1 times [2024-12-02 10:22:57,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:22:57,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886431175] [2024-12-02 10:22:57,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:22:57,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:23:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:02,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:23:02,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:23:02,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886431175] [2024-12-02 10:23:02,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886431175] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:23:02,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:23:02,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:23:02,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481359110] [2024-12-02 10:23:02,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:23:02,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:23:02,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:23:02,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:23:02,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:23:02,501 INFO L87 Difference]: Start difference. First operand 1169 states and 1634 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 10:23:02,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:23:02,649 INFO L93 Difference]: Finished difference Result 3467 states and 4889 transitions. [2024-12-02 10:23:02,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:23:02,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2024-12-02 10:23:02,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:23:02,686 INFO L225 Difference]: With dead ends: 3467 [2024-12-02 10:23:02,686 INFO L226 Difference]: Without dead ends: 2316 [2024-12-02 10:23:02,689 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:23:02,690 INFO L435 NwaCegarLoop]: 2203 mSDtfsCounter, 1618 mSDsluCounter, 1611 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 3814 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:23:02,690 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 3814 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:23:02,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2316 states. [2024-12-02 10:23:02,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2316 to 2312. [2024-12-02 10:23:02,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2312 states, 1681 states have (on average 1.3045806067816776) internal successors, (2193), 1709 states have internal predecessors, (2193), 524 states have call successors, (524), 106 states have call predecessors, (524), 106 states have return successors, (535), 509 states have call predecessors, (535), 520 states have call successors, (535) [2024-12-02 10:23:02,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 3252 transitions. [2024-12-02 10:23:02,785 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 3252 transitions. Word has length 21 [2024-12-02 10:23:02,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:23:02,786 INFO L471 AbstractCegarLoop]: Abstraction has 2312 states and 3252 transitions. [2024-12-02 10:23:02,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 10:23:02,786 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 3252 transitions. [2024-12-02 10:23:02,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-02 10:23:02,786 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:23:02,786 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:23:02,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:23:02,786 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:23:02,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:23:02,787 INFO L85 PathProgramCache]: Analyzing trace with hash 992129213, now seen corresponding path program 1 times [2024-12-02 10:23:02,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:23:02,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884851037] [2024-12-02 10:23:02,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:02,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:23:07,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:07,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:23:07,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:23:07,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884851037] [2024-12-02 10:23:07,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884851037] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:23:07,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:23:07,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:23:07,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604073890] [2024-12-02 10:23:07,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:23:07,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:23:07,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:23:07,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:23:07,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:23:07,873 INFO L87 Difference]: Start difference. First operand 2312 states and 3252 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 10:23:08,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:23:08,116 INFO L93 Difference]: Finished difference Result 6897 states and 9783 transitions. [2024-12-02 10:23:08,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:23:08,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2024-12-02 10:23:08,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:23:08,148 INFO L225 Difference]: With dead ends: 6897 [2024-12-02 10:23:08,148 INFO L226 Difference]: Without dead ends: 4595 [2024-12-02 10:23:08,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:23:08,162 INFO L435 NwaCegarLoop]: 2194 mSDtfsCounter, 1617 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1617 SdHoareTripleChecker+Valid, 3808 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:23:08,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1617 Valid, 3808 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:23:08,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4595 states. [2024-12-02 10:23:08,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4595 to 4584. [2024-12-02 10:23:08,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4584 states, 3334 states have (on average 1.304739052189562) internal successors, (4350), 3385 states have internal predecessors, (4350), 1041 states have call successors, (1041), 209 states have call predecessors, (1041), 208 states have return successors, (1101), 1013 states have call predecessors, (1101), 1037 states have call successors, (1101) [2024-12-02 10:23:08,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4584 states to 4584 states and 6492 transitions. [2024-12-02 10:23:08,410 INFO L78 Accepts]: Start accepts. Automaton has 4584 states and 6492 transitions. Word has length 22 [2024-12-02 10:23:08,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:23:08,411 INFO L471 AbstractCegarLoop]: Abstraction has 4584 states and 6492 transitions. [2024-12-02 10:23:08,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 10:23:08,411 INFO L276 IsEmpty]: Start isEmpty. Operand 4584 states and 6492 transitions. [2024-12-02 10:23:08,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 10:23:08,413 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:23:08,413 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:23:08,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:23:08,413 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:23:08,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:23:08,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1595293029, now seen corresponding path program 1 times [2024-12-02 10:23:08,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:23:08,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819171209] [2024-12-02 10:23:08,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:08,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:23:13,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:13,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:23:13,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:23:13,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819171209] [2024-12-02 10:23:13,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819171209] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:23:13,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:23:13,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:23:13,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615563708] [2024-12-02 10:23:13,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:23:13,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:23:13,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:23:13,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:23:13,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:23:13,943 INFO L87 Difference]: Start difference. First operand 4584 states and 6492 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 10:23:14,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:23:14,258 INFO L93 Difference]: Finished difference Result 9198 states and 13039 transitions. [2024-12-02 10:23:14,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:23:14,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2024-12-02 10:23:14,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:23:14,290 INFO L225 Difference]: With dead ends: 9198 [2024-12-02 10:23:14,290 INFO L226 Difference]: Without dead ends: 4627 [2024-12-02 10:23:14,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:23:14,315 INFO L435 NwaCegarLoop]: 1626 mSDtfsCounter, 12 mSDsluCounter, 1615 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 3241 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:23:14,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 3241 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:23:14,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4627 states. [2024-12-02 10:23:14,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4627 to 4615. [2024-12-02 10:23:14,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4615 states, 3365 states have (on average 1.3052005943536404) internal successors, (4392), 3416 states have internal predecessors, (4392), 1041 states have call successors, (1041), 209 states have call predecessors, (1041), 208 states have return successors, (1101), 1013 states have call predecessors, (1101), 1037 states have call successors, (1101) [2024-12-02 10:23:14,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4615 states to 4615 states and 6534 transitions. [2024-12-02 10:23:14,544 INFO L78 Accepts]: Start accepts. Automaton has 4615 states and 6534 transitions. Word has length 56 [2024-12-02 10:23:14,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:23:14,544 INFO L471 AbstractCegarLoop]: Abstraction has 4615 states and 6534 transitions. [2024-12-02 10:23:14,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 10:23:14,544 INFO L276 IsEmpty]: Start isEmpty. Operand 4615 states and 6534 transitions. [2024-12-02 10:23:14,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 10:23:14,547 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:23:14,547 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 10:23:14,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:23:14,548 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:23:14,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:23:14,548 INFO L85 PathProgramCache]: Analyzing trace with hash -366923662, now seen corresponding path program 1 times [2024-12-02 10:23:14,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:23:14,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348761928] [2024-12-02 10:23:14,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:14,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:23:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:20,042 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 10:23:20,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:23:20,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348761928] [2024-12-02 10:23:20,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348761928] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:23:20,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:23:20,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:23:20,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32250172] [2024-12-02 10:23:20,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:23:20,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:23:20,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:23:20,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:23:20,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:23:20,043 INFO L87 Difference]: Start difference. First operand 4615 states and 6534 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 10:23:24,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:23:24,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:23:24,648 INFO L93 Difference]: Finished difference Result 9262 states and 13105 transitions. [2024-12-02 10:23:24,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:23:24,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 95 [2024-12-02 10:23:24,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:23:24,679 INFO L225 Difference]: With dead ends: 9262 [2024-12-02 10:23:24,679 INFO L226 Difference]: Without dead ends: 4658 [2024-12-02 10:23:24,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:23:24,702 INFO L435 NwaCegarLoop]: 1640 mSDtfsCounter, 13 mSDsluCounter, 4900 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 6540 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:23:24,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 6540 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2024-12-02 10:23:24,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4658 states. [2024-12-02 10:23:24,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4658 to 4632. [2024-12-02 10:23:24,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 3378 states have (on average 1.3040260509177029) internal successors, (4405), 3430 states have internal predecessors, (4405), 1041 states have call successors, (1041), 209 states have call predecessors, (1041), 212 states have return successors, (1108), 1016 states have call predecessors, (1108), 1037 states have call successors, (1108) [2024-12-02 10:23:24,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 6554 transitions. [2024-12-02 10:23:24,991 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 6554 transitions. Word has length 95 [2024-12-02 10:23:24,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:23:24,992 INFO L471 AbstractCegarLoop]: Abstraction has 4632 states and 6554 transitions. [2024-12-02 10:23:24,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 10:23:24,993 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 6554 transitions. [2024-12-02 10:23:24,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 10:23:24,997 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:23:24,997 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:23:24,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 10:23:24,997 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:23:24,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:23:24,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1363400039, now seen corresponding path program 1 times [2024-12-02 10:23:24,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:23:24,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738330890] [2024-12-02 10:23:24,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:24,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:23:30,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:32,950 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-12-02 10:23:32,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:23:32,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738330890] [2024-12-02 10:23:32,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738330890] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:23:32,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245880194] [2024-12-02 10:23:32,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:32,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:23:32,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:23:32,955 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:23:32,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:23:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:39,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 4077 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 10:23:39,463 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:23:40,132 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-02 10:23:40,133 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:23:40,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245880194] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:23:40,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:23:40,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2024-12-02 10:23:40,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240908745] [2024-12-02 10:23:40,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:23:40,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:23:40,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:23:40,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:23:40,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:23:40,136 INFO L87 Difference]: Start difference. First operand 4632 states and 6554 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 10:23:40,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:23:40,424 INFO L93 Difference]: Finished difference Result 8082 states and 11512 transitions. [2024-12-02 10:23:40,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:23:40,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 144 [2024-12-02 10:23:40,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:23:40,452 INFO L225 Difference]: With dead ends: 8082 [2024-12-02 10:23:40,453 INFO L226 Difference]: Without dead ends: 3464 [2024-12-02 10:23:40,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:23:40,474 INFO L435 NwaCegarLoop]: 1627 mSDtfsCounter, 0 mSDsluCounter, 4874 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6501 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:23:40,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6501 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:23:40,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3464 states. [2024-12-02 10:23:40,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3464 to 3464. [2024-12-02 10:23:40,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3464 states, 2522 states have (on average 1.302141157811261) internal successors, (3284), 2562 states have internal predecessors, (3284), 780 states have call successors, (780), 157 states have call predecessors, (780), 161 states have return successors, (823), 762 states have call predecessors, (823), 776 states have call successors, (823) [2024-12-02 10:23:40,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3464 states to 3464 states and 4887 transitions. [2024-12-02 10:23:40,646 INFO L78 Accepts]: Start accepts. Automaton has 3464 states and 4887 transitions. Word has length 144 [2024-12-02 10:23:40,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:23:40,647 INFO L471 AbstractCegarLoop]: Abstraction has 3464 states and 4887 transitions. [2024-12-02 10:23:40,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 10:23:40,647 INFO L276 IsEmpty]: Start isEmpty. Operand 3464 states and 4887 transitions. [2024-12-02 10:23:40,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:23:40,652 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:23:40,653 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:23:40,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:23:40,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:23:40,854 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:23:40,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:23:40,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1130783254, now seen corresponding path program 1 times [2024-12-02 10:23:40,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:23:40,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035388194] [2024-12-02 10:23:40,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:40,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:23:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:49,785 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 10:23:49,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:23:49,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035388194] [2024-12-02 10:23:49,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035388194] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:23:49,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826644654] [2024-12-02 10:23:49,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:49,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:23:49,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:23:49,788 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:23:49,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:23:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:56,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 4002 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 10:23:56,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:23:56,778 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-02 10:23:56,778 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:23:56,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826644654] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:23:56,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:23:56,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2024-12-02 10:23:56,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084869276] [2024-12-02 10:23:56,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:23:56,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:23:56,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:23:56,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:23:56,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:23:56,780 INFO L87 Difference]: Start difference. First operand 3464 states and 4887 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 10:23:57,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:23:57,159 INFO L93 Difference]: Finished difference Result 3502 states and 4925 transitions. [2024-12-02 10:23:57,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:23:57,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 140 [2024-12-02 10:23:57,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:23:57,176 INFO L225 Difference]: With dead ends: 3502 [2024-12-02 10:23:57,176 INFO L226 Difference]: Without dead ends: 3483 [2024-12-02 10:23:57,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:23:57,179 INFO L435 NwaCegarLoop]: 1629 mSDtfsCounter, 1625 mSDsluCounter, 3265 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1626 SdHoareTripleChecker+Valid, 4894 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:23:57,179 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1626 Valid, 4894 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:23:57,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3483 states. [2024-12-02 10:23:57,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3483 to 3464. [2024-12-02 10:23:57,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3464 states, 2522 states have (on average 1.3013481363996828) internal successors, (3282), 2562 states have internal predecessors, (3282), 780 states have call successors, (780), 157 states have call predecessors, (780), 161 states have return successors, (823), 762 states have call predecessors, (823), 776 states have call successors, (823) [2024-12-02 10:23:57,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3464 states to 3464 states and 4885 transitions. [2024-12-02 10:23:57,281 INFO L78 Accepts]: Start accepts. Automaton has 3464 states and 4885 transitions. Word has length 140 [2024-12-02 10:23:57,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:23:57,282 INFO L471 AbstractCegarLoop]: Abstraction has 3464 states and 4885 transitions. [2024-12-02 10:23:57,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 10:23:57,283 INFO L276 IsEmpty]: Start isEmpty. Operand 3464 states and 4885 transitions. [2024-12-02 10:23:57,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 10:23:57,285 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:23:57,285 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:23:57,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 10:23:57,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:23:57,486 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:23:57,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:23:57,486 INFO L85 PathProgramCache]: Analyzing trace with hash -713809304, now seen corresponding path program 1 times [2024-12-02 10:23:57,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:23:57,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104470634] [2024-12-02 10:23:57,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:57,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:24:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:04,555 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-12-02 10:24:04,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:24:04,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104470634] [2024-12-02 10:24:04,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104470634] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:24:04,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056260729] [2024-12-02 10:24:04,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:04,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:24:04,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:24:04,557 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:24:04,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:24:10,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:10,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 4076 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 10:24:10,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:13,152 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 10:24:13,152 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:24:15,731 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-12-02 10:24:15,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056260729] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:24:15,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:24:15,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 6] total 16 [2024-12-02 10:24:15,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318482186] [2024-12-02 10:24:15,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:15,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:24:15,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:24:15,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:24:15,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:24:15,733 INFO L87 Difference]: Start difference. First operand 3464 states and 4885 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 5 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-12-02 10:24:19,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:24:23,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:24:37,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:37,977 INFO L93 Difference]: Finished difference Result 5743 states and 8198 transitions. [2024-12-02 10:24:37,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:24:37,977 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 5 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 144 [2024-12-02 10:24:37,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:38,009 INFO L225 Difference]: With dead ends: 5743 [2024-12-02 10:24:38,009 INFO L226 Difference]: Without dead ends: 5738 [2024-12-02 10:24:38,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 279 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:24:38,013 INFO L435 NwaCegarLoop]: 2060 mSDtfsCounter, 3920 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 404 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3920 SdHoareTripleChecker+Valid, 3938 SdHoareTripleChecker+Invalid, 1759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:38,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3920 Valid, 3938 Invalid, 1759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 1353 Invalid, 2 Unknown, 0 Unchecked, 22.0s Time] [2024-12-02 10:24:38,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5738 states. [2024-12-02 10:24:38,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5738 to 5712. [2024-12-02 10:24:38,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5712 states, 4154 states have (on average 1.3021184400577757) internal successors, (5409), 4218 states have internal predecessors, (5409), 1292 states have call successors, (1292), 259 states have call predecessors, (1292), 265 states have return successors, (1465), 1264 states have call predecessors, (1465), 1288 states have call successors, (1465) [2024-12-02 10:24:38,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5712 states to 5712 states and 8166 transitions. [2024-12-02 10:24:38,262 INFO L78 Accepts]: Start accepts. Automaton has 5712 states and 8166 transitions. Word has length 144 [2024-12-02 10:24:38,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:38,263 INFO L471 AbstractCegarLoop]: Abstraction has 5712 states and 8166 transitions. [2024-12-02 10:24:38,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 5 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-12-02 10:24:38,263 INFO L276 IsEmpty]: Start isEmpty. Operand 5712 states and 8166 transitions. [2024-12-02 10:24:38,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 10:24:38,264 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:38,265 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:38,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 10:24:38,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-12-02 10:24:38,465 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:38,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:38,466 INFO L85 PathProgramCache]: Analyzing trace with hash -808789418, now seen corresponding path program 1 times [2024-12-02 10:24:38,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:24:38,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267672254] [2024-12-02 10:24:38,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:38,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:24:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:45,179 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 10:24:45,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:24:45,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267672254] [2024-12-02 10:24:45,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267672254] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:24:45,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327078809] [2024-12-02 10:24:45,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:45,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:24:45,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:24:45,181 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:24:45,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 10:24:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:51,163 INFO L256 TraceCheckSpWp]: Trace formula consists of 4011 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:24:51,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:51,687 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-02 10:24:51,687 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:51,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327078809] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:51,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:24:51,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-12-02 10:24:51,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683309072] [2024-12-02 10:24:51,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:51,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:24:51,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:24:51,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:24:51,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:24:51,689 INFO L87 Difference]: Start difference. First operand 5712 states and 8166 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 10:24:51,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:51,959 INFO L93 Difference]: Finished difference Result 11419 states and 16328 transitions. [2024-12-02 10:24:51,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:24:51,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 143 [2024-12-02 10:24:51,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:51,981 INFO L225 Difference]: With dead ends: 11419 [2024-12-02 10:24:51,981 INFO L226 Difference]: Without dead ends: 5721 [2024-12-02 10:24:51,997 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:24:51,998 INFO L435 NwaCegarLoop]: 1637 mSDtfsCounter, 21 mSDsluCounter, 1625 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 3262 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:51,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 3262 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:24:52,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5721 states. [2024-12-02 10:24:52,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5721 to 5712. [2024-12-02 10:24:52,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5712 states, 4154 states have (on average 1.2999518536350505) internal successors, (5400), 4218 states have internal predecessors, (5400), 1292 states have call successors, (1292), 259 states have call predecessors, (1292), 265 states have return successors, (1465), 1264 states have call predecessors, (1465), 1288 states have call successors, (1465) [2024-12-02 10:24:52,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5712 states to 5712 states and 8157 transitions. [2024-12-02 10:24:52,162 INFO L78 Accepts]: Start accepts. Automaton has 5712 states and 8157 transitions. Word has length 143 [2024-12-02 10:24:52,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:52,162 INFO L471 AbstractCegarLoop]: Abstraction has 5712 states and 8157 transitions. [2024-12-02 10:24:52,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 10:24:52,162 INFO L276 IsEmpty]: Start isEmpty. Operand 5712 states and 8157 transitions. [2024-12-02 10:24:52,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 10:24:52,166 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:52,166 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:52,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 10:24:52,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-12-02 10:24:52,367 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:52,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:52,367 INFO L85 PathProgramCache]: Analyzing trace with hash 245830012, now seen corresponding path program 1 times [2024-12-02 10:24:52,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:24:52,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361279670] [2024-12-02 10:24:52,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:52,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:24:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:58,798 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 10:24:58,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:24:58,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361279670] [2024-12-02 10:24:58,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361279670] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:24:58,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986449906] [2024-12-02 10:24:58,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:58,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:24:58,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:24:58,800 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:24:58,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 10:25:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:04,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 4169 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 10:25:04,856 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:05,495 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 10:25:05,495 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:25:05,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986449906] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:05,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:25:05,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2024-12-02 10:25:05,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613470490] [2024-12-02 10:25:05,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:05,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:25:05,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:25:05,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:25:05,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:25:05,498 INFO L87 Difference]: Start difference. First operand 5712 states and 8157 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 10:25:05,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:05,796 INFO L93 Difference]: Finished difference Result 11425 states and 16522 transitions. [2024-12-02 10:25:05,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:25:05,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (20), 2 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 160 [2024-12-02 10:25:05,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:05,827 INFO L225 Difference]: With dead ends: 11425 [2024-12-02 10:25:05,827 INFO L226 Difference]: Without dead ends: 5727 [2024-12-02 10:25:05,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:25:05,852 INFO L435 NwaCegarLoop]: 1626 mSDtfsCounter, 0 mSDsluCounter, 4870 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6496 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:05,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6496 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:25:05,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5727 states. [2024-12-02 10:25:06,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5727 to 5727. [2024-12-02 10:25:06,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5727 states, 4169 states have (on average 1.2988726313264571) internal successors, (5415), 4233 states have internal predecessors, (5415), 1292 states have call successors, (1292), 259 states have call predecessors, (1292), 265 states have return successors, (1465), 1264 states have call predecessors, (1465), 1288 states have call successors, (1465) [2024-12-02 10:25:06,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5727 states to 5727 states and 8172 transitions. [2024-12-02 10:25:06,104 INFO L78 Accepts]: Start accepts. Automaton has 5727 states and 8172 transitions. Word has length 160 [2024-12-02 10:25:06,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:06,104 INFO L471 AbstractCegarLoop]: Abstraction has 5727 states and 8172 transitions. [2024-12-02 10:25:06,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 10:25:06,104 INFO L276 IsEmpty]: Start isEmpty. Operand 5727 states and 8172 transitions. [2024-12-02 10:25:06,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-12-02 10:25:06,109 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:06,109 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:06,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 10:25:06,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 10:25:06,310 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:06,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:06,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1792753441, now seen corresponding path program 1 times [2024-12-02 10:25:06,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:25:06,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783638890] [2024-12-02 10:25:06,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:06,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:25:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:12,831 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-12-02 10:25:12,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:25:12,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783638890] [2024-12-02 10:25:12,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783638890] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:25:12,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312547609] [2024-12-02 10:25:12,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:12,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:25:12,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:25:12,834 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:25:12,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 10:25:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:18,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 4383 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:25:18,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:19,182 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-12-02 10:25:19,182 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:25:19,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312547609] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:19,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:25:19,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-12-02 10:25:19,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896297146] [2024-12-02 10:25:19,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:19,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:25:19,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:25:19,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:25:19,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:25:19,184 INFO L87 Difference]: Start difference. First operand 5727 states and 8172 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 10:25:19,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:19,404 INFO L93 Difference]: Finished difference Result 11460 states and 16576 transitions. [2024-12-02 10:25:19,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:25:19,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 171 [2024-12-02 10:25:19,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:19,425 INFO L225 Difference]: With dead ends: 11460 [2024-12-02 10:25:19,425 INFO L226 Difference]: Without dead ends: 5747 [2024-12-02 10:25:19,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:25:19,444 INFO L435 NwaCegarLoop]: 1626 mSDtfsCounter, 2 mSDsluCounter, 1623 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3249 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:19,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3249 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:25:19,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5747 states. [2024-12-02 10:25:19,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5747 to 5732. [2024-12-02 10:25:19,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5732 states, 4174 states have (on average 1.2985146142788693) internal successors, (5420), 4238 states have internal predecessors, (5420), 1292 states have call successors, (1292), 259 states have call predecessors, (1292), 265 states have return successors, (1465), 1264 states have call predecessors, (1465), 1288 states have call successors, (1465) [2024-12-02 10:25:19,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5732 states to 5732 states and 8177 transitions. [2024-12-02 10:25:19,633 INFO L78 Accepts]: Start accepts. Automaton has 5732 states and 8177 transitions. Word has length 171 [2024-12-02 10:25:19,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:19,633 INFO L471 AbstractCegarLoop]: Abstraction has 5732 states and 8177 transitions. [2024-12-02 10:25:19,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 10:25:19,633 INFO L276 IsEmpty]: Start isEmpty. Operand 5732 states and 8177 transitions. [2024-12-02 10:25:19,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-12-02 10:25:19,636 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:19,636 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:19,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 10:25:19,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:25:19,837 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:19,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:19,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1293137856, now seen corresponding path program 1 times [2024-12-02 10:25:19,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:25:19,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995533402] [2024-12-02 10:25:19,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:19,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:25:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:26,582 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 10:25:26,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:25:26,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995533402] [2024-12-02 10:25:26,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995533402] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:25:26,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610120308] [2024-12-02 10:25:26,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:26,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:25:26,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:25:26,584 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:25:26,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 10:25:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:33,256 INFO L256 TraceCheckSpWp]: Trace formula consists of 4276 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:25:33,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:33,499 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 10:25:33,499 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:25:33,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610120308] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:33,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:25:33,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-12-02 10:25:33,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223583347] [2024-12-02 10:25:33,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:33,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:25:33,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:25:33,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:25:33,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:25:33,501 INFO L87 Difference]: Start difference. First operand 5732 states and 8177 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 10:25:33,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:33,683 INFO L93 Difference]: Finished difference Result 11455 states and 16552 transitions. [2024-12-02 10:25:33,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:25:33,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (20), 2 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 171 [2024-12-02 10:25:33,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:33,711 INFO L225 Difference]: With dead ends: 11455 [2024-12-02 10:25:33,711 INFO L226 Difference]: Without dead ends: 5737 [2024-12-02 10:25:33,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:25:33,740 INFO L435 NwaCegarLoop]: 1628 mSDtfsCounter, 0 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3250 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:33,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3250 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:25:33,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5737 states. [2024-12-02 10:25:33,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5737 to 5737. [2024-12-02 10:25:33,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5737 states, 4179 states have (on average 1.2981574539363485) internal successors, (5425), 4243 states have internal predecessors, (5425), 1292 states have call successors, (1292), 259 states have call predecessors, (1292), 265 states have return successors, (1465), 1264 states have call predecessors, (1465), 1288 states have call successors, (1465) [2024-12-02 10:25:33,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5737 states to 5737 states and 8182 transitions. [2024-12-02 10:25:33,909 INFO L78 Accepts]: Start accepts. Automaton has 5737 states and 8182 transitions. Word has length 171 [2024-12-02 10:25:33,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:33,909 INFO L471 AbstractCegarLoop]: Abstraction has 5737 states and 8182 transitions. [2024-12-02 10:25:33,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 10:25:33,909 INFO L276 IsEmpty]: Start isEmpty. Operand 5737 states and 8182 transitions. [2024-12-02 10:25:33,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-12-02 10:25:33,913 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:33,913 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:33,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-12-02 10:25:34,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:25:34,114 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:34,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:34,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1044991362, now seen corresponding path program 1 times [2024-12-02 10:25:34,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:25:34,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021381718] [2024-12-02 10:25:34,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:34,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:25:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:40,706 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 10:25:40,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:25:40,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021381718] [2024-12-02 10:25:40,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021381718] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:25:40,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321437857] [2024-12-02 10:25:40,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:40,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:25:40,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:25:40,709 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:25:40,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 10:25:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:47,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 4274 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 10:25:47,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:47,751 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 10:25:47,751 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:25:47,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321437857] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:47,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:25:47,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2024-12-02 10:25:47,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686704753] [2024-12-02 10:25:47,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:47,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:25:47,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:25:47,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:25:47,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:25:47,753 INFO L87 Difference]: Start difference. First operand 5737 states and 8182 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 10:25:48,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:48,036 INFO L93 Difference]: Finished difference Result 11475 states and 16572 transitions. [2024-12-02 10:25:48,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:25:48,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (20), 2 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 171 [2024-12-02 10:25:48,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:48,059 INFO L225 Difference]: With dead ends: 11475 [2024-12-02 10:25:48,059 INFO L226 Difference]: Without dead ends: 5752 [2024-12-02 10:25:48,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:25:48,080 INFO L435 NwaCegarLoop]: 1626 mSDtfsCounter, 0 mSDsluCounter, 4870 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6496 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:48,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6496 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:25:48,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5752 states. [2024-12-02 10:25:48,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5752 to 5752. [2024-12-02 10:25:48,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5752 states, 4194 states have (on average 1.2970910824988078) internal successors, (5440), 4258 states have internal predecessors, (5440), 1292 states have call successors, (1292), 259 states have call predecessors, (1292), 265 states have return successors, (1465), 1264 states have call predecessors, (1465), 1288 states have call successors, (1465) [2024-12-02 10:25:48,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5752 states to 5752 states and 8197 transitions. [2024-12-02 10:25:48,236 INFO L78 Accepts]: Start accepts. Automaton has 5752 states and 8197 transitions. Word has length 171 [2024-12-02 10:25:48,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:48,237 INFO L471 AbstractCegarLoop]: Abstraction has 5752 states and 8197 transitions. [2024-12-02 10:25:48,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 10:25:48,237 INFO L276 IsEmpty]: Start isEmpty. Operand 5752 states and 8197 transitions. [2024-12-02 10:25:48,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-12-02 10:25:48,242 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:48,242 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:48,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 10:25:48,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 10:25:48,442 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:48,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:48,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1218387496, now seen corresponding path program 1 times [2024-12-02 10:25:48,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:25:48,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131360571] [2024-12-02 10:25:48,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:48,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:25:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:54,897 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 10:25:54,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:25:54,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131360571] [2024-12-02 10:25:54,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131360571] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:25:54,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120582321] [2024-12-02 10:25:54,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:54,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:25:54,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:25:54,899 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:25:54,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 10:26:01,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:01,766 INFO L256 TraceCheckSpWp]: Trace formula consists of 4280 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-12-02 10:26:01,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:26:02,175 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 10:26:02,175 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:26:02,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120582321] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:02,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:26:02,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 10 [2024-12-02 10:26:02,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501532274] [2024-12-02 10:26:02,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:02,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:26:02,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:02,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:26:02,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:26:02,178 INFO L87 Difference]: Start difference. First operand 5752 states and 8197 transitions. Second operand has 10 states, 10 states have (on average 11.8) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (16), 5 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 10:26:03,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:03,044 INFO L93 Difference]: Finished difference Result 11545 states and 16687 transitions. [2024-12-02 10:26:03,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:26:03,045 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (16), 5 states have call predecessors, (16), 2 states have call successors, (16) Word has length 172 [2024-12-02 10:26:03,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:03,081 INFO L225 Difference]: With dead ends: 11545 [2024-12-02 10:26:03,081 INFO L226 Difference]: Without dead ends: 5807 [2024-12-02 10:26:03,116 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:26:03,116 INFO L435 NwaCegarLoop]: 1626 mSDtfsCounter, 0 mSDsluCounter, 12986 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14612 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:03,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14612 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:26:03,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5807 states. [2024-12-02 10:26:03,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5807 to 5807. [2024-12-02 10:26:03,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5807 states, 4234 states have (on average 1.2942843646669815) internal successors, (5480), 4298 states have internal predecessors, (5480), 1292 states have call successors, (1292), 259 states have call predecessors, (1292), 280 states have return successors, (1525), 1279 states have call predecessors, (1525), 1288 states have call successors, (1525) [2024-12-02 10:26:03,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5807 states to 5807 states and 8297 transitions. [2024-12-02 10:26:03,401 INFO L78 Accepts]: Start accepts. Automaton has 5807 states and 8297 transitions. Word has length 172 [2024-12-02 10:26:03,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:03,402 INFO L471 AbstractCegarLoop]: Abstraction has 5807 states and 8297 transitions. [2024-12-02 10:26:03,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (16), 5 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 10:26:03,402 INFO L276 IsEmpty]: Start isEmpty. Operand 5807 states and 8297 transitions. [2024-12-02 10:26:03,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-12-02 10:26:03,407 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:03,407 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:03,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 10:26:03,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 10:26:03,607 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:03,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:03,608 INFO L85 PathProgramCache]: Analyzing trace with hash -715818903, now seen corresponding path program 1 times [2024-12-02 10:26:03,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:03,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151528910] [2024-12-02 10:26:03,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:03,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:08,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:09,225 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-02 10:26:09,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:09,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151528910] [2024-12-02 10:26:09,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151528910] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:09,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:09,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:26:09,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840003286] [2024-12-02 10:26:09,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:09,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:26:09,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:09,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:26:09,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:26:09,226 INFO L87 Difference]: Start difference. First operand 5807 states and 8297 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 10:26:09,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:09,524 INFO L93 Difference]: Finished difference Result 11635 states and 16846 transitions. [2024-12-02 10:26:09,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:26:09,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 172 [2024-12-02 10:26:09,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:09,554 INFO L225 Difference]: With dead ends: 11635 [2024-12-02 10:26:09,554 INFO L226 Difference]: Without dead ends: 5807 [2024-12-02 10:26:09,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:26:09,584 INFO L435 NwaCegarLoop]: 1626 mSDtfsCounter, 2 mSDsluCounter, 3244 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4870 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:09,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4870 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:26:09,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5807 states. [2024-12-02 10:26:09,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5807 to 5807. [2024-12-02 10:26:09,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5807 states, 4234 states have (on average 1.293103448275862) internal successors, (5475), 4298 states have internal predecessors, (5475), 1292 states have call successors, (1292), 259 states have call predecessors, (1292), 280 states have return successors, (1525), 1279 states have call predecessors, (1525), 1288 states have call successors, (1525) [2024-12-02 10:26:09,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5807 states to 5807 states and 8292 transitions. [2024-12-02 10:26:09,812 INFO L78 Accepts]: Start accepts. Automaton has 5807 states and 8292 transitions. Word has length 172 [2024-12-02 10:26:09,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:09,813 INFO L471 AbstractCegarLoop]: Abstraction has 5807 states and 8292 transitions. [2024-12-02 10:26:09,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 10:26:09,813 INFO L276 IsEmpty]: Start isEmpty. Operand 5807 states and 8292 transitions. [2024-12-02 10:26:09,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-12-02 10:26:09,818 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:09,818 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:09,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 10:26:09,818 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:09,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:09,819 INFO L85 PathProgramCache]: Analyzing trace with hash -928994842, now seen corresponding path program 1 times [2024-12-02 10:26:09,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:09,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954053568] [2024-12-02 10:26:09,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:09,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:15,598 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-02 10:26:15,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:15,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954053568] [2024-12-02 10:26:15,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954053568] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:15,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:15,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:26:15,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440176882] [2024-12-02 10:26:15,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:15,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:26:15,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:15,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:26:15,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:26:15,600 INFO L87 Difference]: Start difference. First operand 5807 states and 8292 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 10:26:15,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:15,770 INFO L93 Difference]: Finished difference Result 11605 states and 16782 transitions. [2024-12-02 10:26:15,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:26:15,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 174 [2024-12-02 10:26:15,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:15,802 INFO L225 Difference]: With dead ends: 11605 [2024-12-02 10:26:15,802 INFO L226 Difference]: Without dead ends: 5812 [2024-12-02 10:26:15,823 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:26:15,824 INFO L435 NwaCegarLoop]: 1627 mSDtfsCounter, 0 mSDsluCounter, 1624 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3251 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:15,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3251 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:26:15,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5812 states. [2024-12-02 10:26:15,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5812 to 5812. [2024-12-02 10:26:15,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5812 states, 4239 states have (on average 1.292757725878745) internal successors, (5480), 4303 states have internal predecessors, (5480), 1292 states have call successors, (1292), 259 states have call predecessors, (1292), 280 states have return successors, (1525), 1279 states have call predecessors, (1525), 1288 states have call successors, (1525) [2024-12-02 10:26:15,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5812 states to 5812 states and 8297 transitions. [2024-12-02 10:26:15,975 INFO L78 Accepts]: Start accepts. Automaton has 5812 states and 8297 transitions. Word has length 174 [2024-12-02 10:26:15,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:15,975 INFO L471 AbstractCegarLoop]: Abstraction has 5812 states and 8297 transitions. [2024-12-02 10:26:15,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 10:26:15,975 INFO L276 IsEmpty]: Start isEmpty. Operand 5812 states and 8297 transitions. [2024-12-02 10:26:15,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-12-02 10:26:15,977 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:15,977 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:15,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 10:26:15,978 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:15,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:15,978 INFO L85 PathProgramCache]: Analyzing trace with hash 565568428, now seen corresponding path program 1 times [2024-12-02 10:26:15,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:15,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157283256] [2024-12-02 10:26:15,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:15,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:22,119 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-02 10:26:22,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:22,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157283256] [2024-12-02 10:26:22,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157283256] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:26:22,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827244728] [2024-12-02 10:26:22,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:22,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:26:22,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:26:22,123 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:26:22,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 10:26:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:35,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 4307 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 10:26:35,183 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:26:36,230 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-12-02 10:26:36,230 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:26:36,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827244728] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:36,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:26:36,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2024-12-02 10:26:36,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71271411] [2024-12-02 10:26:36,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:36,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:26:36,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:36,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:26:36,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:26:36,232 INFO L87 Difference]: Start difference. First operand 5812 states and 8297 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 6 states have internal predecessors, (124), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 10:26:36,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:36,943 INFO L93 Difference]: Finished difference Result 11660 states and 16867 transitions. [2024-12-02 10:26:36,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:26:36,943 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 6 states have internal predecessors, (124), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 175 [2024-12-02 10:26:36,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:36,968 INFO L225 Difference]: With dead ends: 11660 [2024-12-02 10:26:36,969 INFO L226 Difference]: Without dead ends: 5862 [2024-12-02 10:26:36,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:26:36,992 INFO L435 NwaCegarLoop]: 1619 mSDtfsCounter, 4 mSDsluCounter, 8084 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 9703 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:36,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 9703 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:26:36,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5862 states. [2024-12-02 10:26:37,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5862 to 5842. [2024-12-02 10:26:37,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5842 states, 4264 states have (on average 1.2922138836772983) internal successors, (5510), 4328 states have internal predecessors, (5510), 1292 states have call successors, (1292), 259 states have call predecessors, (1292), 285 states have return successors, (1550), 1284 states have call predecessors, (1550), 1288 states have call successors, (1550) [2024-12-02 10:26:37,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5842 states to 5842 states and 8352 transitions. [2024-12-02 10:26:37,160 INFO L78 Accepts]: Start accepts. Automaton has 5842 states and 8352 transitions. Word has length 175 [2024-12-02 10:26:37,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:37,160 INFO L471 AbstractCegarLoop]: Abstraction has 5842 states and 8352 transitions. [2024-12-02 10:26:37,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 6 states have internal predecessors, (124), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 10:26:37,160 INFO L276 IsEmpty]: Start isEmpty. Operand 5842 states and 8352 transitions. [2024-12-02 10:26:37,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-12-02 10:26:37,163 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:37,163 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:37,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 10:26:37,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-02 10:26:37,363 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:37,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:37,364 INFO L85 PathProgramCache]: Analyzing trace with hash -189717971, now seen corresponding path program 1 times [2024-12-02 10:26:37,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:37,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193161620] [2024-12-02 10:26:37,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:37,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:42,968 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-12-02 10:26:42,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:42,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193161620] [2024-12-02 10:26:42,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193161620] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:42,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:42,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:26:42,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306936493] [2024-12-02 10:26:42,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:42,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:26:42,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:42,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:26:42,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:26:42,970 INFO L87 Difference]: Start difference. First operand 5842 states and 8352 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 10:26:43,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:43,558 INFO L93 Difference]: Finished difference Result 11720 states and 16947 transitions. [2024-12-02 10:26:43,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:26:43,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (20), 2 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 176 [2024-12-02 10:26:43,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:43,589 INFO L225 Difference]: With dead ends: 11720 [2024-12-02 10:26:43,589 INFO L226 Difference]: Without dead ends: 5892 [2024-12-02 10:26:43,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:26:43,615 INFO L435 NwaCegarLoop]: 1618 mSDtfsCounter, 7 mSDsluCounter, 3226 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4844 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:43,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4844 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:26:43,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2024-12-02 10:26:43,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5877. [2024-12-02 10:26:43,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5877 states, 4294 states have (on average 1.2925011644154634) internal successors, (5550), 4358 states have internal predecessors, (5550), 1292 states have call successors, (1292), 264 states have call predecessors, (1292), 290 states have return successors, (1530), 1284 states have call predecessors, (1530), 1288 states have call successors, (1530) [2024-12-02 10:26:43,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5877 states to 5877 states and 8372 transitions. [2024-12-02 10:26:43,813 INFO L78 Accepts]: Start accepts. Automaton has 5877 states and 8372 transitions. Word has length 176 [2024-12-02 10:26:43,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:43,814 INFO L471 AbstractCegarLoop]: Abstraction has 5877 states and 8372 transitions. [2024-12-02 10:26:43,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 10:26:43,814 INFO L276 IsEmpty]: Start isEmpty. Operand 5877 states and 8372 transitions. [2024-12-02 10:26:43,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-12-02 10:26:43,817 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:43,817 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:43,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 10:26:43,818 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:43,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:43,818 INFO L85 PathProgramCache]: Analyzing trace with hash 488632335, now seen corresponding path program 1 times [2024-12-02 10:26:43,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:43,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463978442] [2024-12-02 10:26:43,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:43,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:51,236 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-02 10:26:51,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:51,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463978442] [2024-12-02 10:26:51,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463978442] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:26:51,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585447805] [2024-12-02 10:26:51,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:51,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:26:51,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:26:51,240 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:26:51,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 10:27:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:00,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 4310 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 10:27:00,587 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:01,399 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 10:27:01,399 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:27:01,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585447805] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:01,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:27:01,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2024-12-02 10:27:01,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749816146] [2024-12-02 10:27:01,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:01,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:27:01,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:01,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:27:01,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:27:01,401 INFO L87 Difference]: Start difference. First operand 5877 states and 8372 transitions. Second operand has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 6 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 10:27:02,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:02,808 INFO L93 Difference]: Finished difference Result 11765 states and 16977 transitions. [2024-12-02 10:27:02,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:27:02,809 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 6 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 177 [2024-12-02 10:27:02,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:02,844 INFO L225 Difference]: With dead ends: 11765 [2024-12-02 10:27:02,844 INFO L226 Difference]: Without dead ends: 5902 [2024-12-02 10:27:02,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:27:02,872 INFO L435 NwaCegarLoop]: 1613 mSDtfsCounter, 4 mSDsluCounter, 8042 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 9655 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:02,872 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 9655 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 10:27:02,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5902 states. [2024-12-02 10:27:03,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5902 to 5882. [2024-12-02 10:27:03,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5882 states, 4299 states have (on average 1.2909979064898813) internal successors, (5550), 4363 states have internal predecessors, (5550), 1292 states have call successors, (1292), 264 states have call predecessors, (1292), 290 states have return successors, (1530), 1284 states have call predecessors, (1530), 1288 states have call successors, (1530) [2024-12-02 10:27:03,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5882 states to 5882 states and 8372 transitions. [2024-12-02 10:27:03,156 INFO L78 Accepts]: Start accepts. Automaton has 5882 states and 8372 transitions. Word has length 177 [2024-12-02 10:27:03,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:03,156 INFO L471 AbstractCegarLoop]: Abstraction has 5882 states and 8372 transitions. [2024-12-02 10:27:03,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 6 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 10:27:03,156 INFO L276 IsEmpty]: Start isEmpty. Operand 5882 states and 8372 transitions. [2024-12-02 10:27:03,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-12-02 10:27:03,159 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:03,160 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:03,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 10:27:03,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:27:03,360 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:03,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:03,361 INFO L85 PathProgramCache]: Analyzing trace with hash -279785431, now seen corresponding path program 1 times [2024-12-02 10:27:03,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:03,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930490330] [2024-12-02 10:27:03,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:03,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:10,005 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-12-02 10:27:10,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:10,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930490330] [2024-12-02 10:27:10,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930490330] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:10,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:10,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:27:10,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577962354] [2024-12-02 10:27:10,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:10,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:27:10,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:10,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:27:10,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:27:10,007 INFO L87 Difference]: Start difference. First operand 5882 states and 8372 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 10:27:10,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:10,350 INFO L93 Difference]: Finished difference Result 11750 states and 16932 transitions. [2024-12-02 10:27:10,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:27:10,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 177 [2024-12-02 10:27:10,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:10,385 INFO L225 Difference]: With dead ends: 11750 [2024-12-02 10:27:10,385 INFO L226 Difference]: Without dead ends: 5882 [2024-12-02 10:27:10,414 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:27:10,415 INFO L435 NwaCegarLoop]: 1625 mSDtfsCounter, 2 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3243 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:10,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3243 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:27:10,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5882 states. [2024-12-02 10:27:10,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5882 to 5877. [2024-12-02 10:27:10,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5877 states, 4294 states have (on average 1.2901723334885886) internal successors, (5540), 4358 states have internal predecessors, (5540), 1292 states have call successors, (1292), 264 states have call predecessors, (1292), 290 states have return successors, (1530), 1284 states have call predecessors, (1530), 1288 states have call successors, (1530) [2024-12-02 10:27:10,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5877 states to 5877 states and 8362 transitions. [2024-12-02 10:27:10,633 INFO L78 Accepts]: Start accepts. Automaton has 5877 states and 8362 transitions. Word has length 177 [2024-12-02 10:27:10,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:10,633 INFO L471 AbstractCegarLoop]: Abstraction has 5877 states and 8362 transitions. [2024-12-02 10:27:10,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 10:27:10,633 INFO L276 IsEmpty]: Start isEmpty. Operand 5877 states and 8362 transitions. [2024-12-02 10:27:10,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-12-02 10:27:10,636 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:10,636 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:10,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 10:27:10,637 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:10,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:10,637 INFO L85 PathProgramCache]: Analyzing trace with hash -147607220, now seen corresponding path program 1 times [2024-12-02 10:27:10,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:10,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045470388] [2024-12-02 10:27:10,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:10,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:17,976 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-02 10:27:17,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:17,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045470388] [2024-12-02 10:27:17,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045470388] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:27:17,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930306685] [2024-12-02 10:27:17,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:17,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:27:17,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:27:17,979 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:27:17,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 10:27:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:46,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 4311 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 10:27:46,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:47,295 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-02 10:27:47,295 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:27:47,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930306685] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:47,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:27:47,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2024-12-02 10:27:47,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020628883] [2024-12-02 10:27:47,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:47,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:27:47,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:47,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:27:47,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:27:47,296 INFO L87 Difference]: Start difference. First operand 5877 states and 8362 transitions. Second operand has 7 states, 7 states have (on average 19.0) internal successors, (133), 6 states have internal predecessors, (133), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 10:27:48,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:48,287 INFO L93 Difference]: Finished difference Result 11775 states and 16967 transitions. [2024-12-02 10:27:48,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:27:48,288 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 6 states have internal predecessors, (133), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 179 [2024-12-02 10:27:48,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:48,316 INFO L225 Difference]: With dead ends: 11775 [2024-12-02 10:27:48,317 INFO L226 Difference]: Without dead ends: 5912 [2024-12-02 10:27:48,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:27:48,341 INFO L435 NwaCegarLoop]: 1613 mSDtfsCounter, 4 mSDsluCounter, 8043 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 9656 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:48,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 9656 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 10:27:48,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5912 states. [2024-12-02 10:27:48,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5912 to 5902. [2024-12-02 10:27:48,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5902 states, 4314 states have (on average 1.2888270746407047) internal successors, (5560), 4378 states have internal predecessors, (5560), 1292 states have call successors, (1292), 264 states have call predecessors, (1292), 295 states have return successors, (1550), 1289 states have call predecessors, (1550), 1288 states have call successors, (1550) [2024-12-02 10:27:48,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5902 states to 5902 states and 8402 transitions. [2024-12-02 10:27:48,525 INFO L78 Accepts]: Start accepts. Automaton has 5902 states and 8402 transitions. Word has length 179 [2024-12-02 10:27:48,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:48,525 INFO L471 AbstractCegarLoop]: Abstraction has 5902 states and 8402 transitions. [2024-12-02 10:27:48,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 6 states have internal predecessors, (133), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 10:27:48,525 INFO L276 IsEmpty]: Start isEmpty. Operand 5902 states and 8402 transitions. [2024-12-02 10:27:48,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-12-02 10:27:48,527 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:48,527 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:48,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 10:27:48,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-12-02 10:27:48,728 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:48,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:48,728 INFO L85 PathProgramCache]: Analyzing trace with hash 665184683, now seen corresponding path program 1 times [2024-12-02 10:27:48,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:48,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989334524] [2024-12-02 10:27:48,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:48,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:53,879 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-12-02 10:27:53,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:53,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989334524] [2024-12-02 10:27:53,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989334524] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:27:53,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987404555] [2024-12-02 10:27:53,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:53,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:27:53,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:27:53,881 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:27:53,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 10:28:01,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:01,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 4314 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 10:28:01,164 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:28:01,387 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-02 10:28:01,387 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:28:01,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987404555] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:28:01,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:28:01,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-12-02 10:28:01,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489217845] [2024-12-02 10:28:01,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:28:01,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:28:01,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:28:01,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:28:01,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:28:01,388 INFO L87 Difference]: Start difference. First operand 5902 states and 8402 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 10:28:01,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:01,737 INFO L93 Difference]: Finished difference Result 11805 states and 17022 transitions. [2024-12-02 10:28:01,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:28:01,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 180 [2024-12-02 10:28:01,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:01,764 INFO L225 Difference]: With dead ends: 11805 [2024-12-02 10:28:01,765 INFO L226 Difference]: Without dead ends: 5902 [2024-12-02 10:28:01,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:28:01,789 INFO L435 NwaCegarLoop]: 1624 mSDtfsCounter, 1 mSDsluCounter, 3234 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4858 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:01,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4858 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:28:01,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5902 states. [2024-12-02 10:28:01,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5902 to 5902. [2024-12-02 10:28:01,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5902 states, 4314 states have (on average 1.2865090403337969) internal successors, (5550), 4378 states have internal predecessors, (5550), 1292 states have call successors, (1292), 264 states have call predecessors, (1292), 295 states have return successors, (1550), 1289 states have call predecessors, (1550), 1288 states have call successors, (1550) [2024-12-02 10:28:01,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5902 states to 5902 states and 8392 transitions. [2024-12-02 10:28:01,969 INFO L78 Accepts]: Start accepts. Automaton has 5902 states and 8392 transitions. Word has length 180 [2024-12-02 10:28:01,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:01,969 INFO L471 AbstractCegarLoop]: Abstraction has 5902 states and 8392 transitions. [2024-12-02 10:28:01,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 10:28:01,969 INFO L276 IsEmpty]: Start isEmpty. Operand 5902 states and 8392 transitions. [2024-12-02 10:28:01,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-12-02 10:28:01,971 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:01,972 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:01,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 10:28:02,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-12-02 10:28:02,172 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:28:02,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:02,173 INFO L85 PathProgramCache]: Analyzing trace with hash 558091817, now seen corresponding path program 1 times [2024-12-02 10:28:02,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:28:02,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836401396] [2024-12-02 10:28:02,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:02,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:28:06,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:07,710 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-02 10:28:07,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:28:07,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836401396] [2024-12-02 10:28:07,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836401396] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:28:07,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276880862] [2024-12-02 10:28:07,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:07,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:28:07,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:28:07,712 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:28:07,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 10:28:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:21,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 4314 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 10:28:21,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:28:21,679 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 10:28:21,679 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:28:22,550 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-02 10:28:22,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276880862] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:28:22,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:28:22,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-12-02 10:28:22,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668428529] [2024-12-02 10:28:22,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:28:22,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:28:22,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:28:22,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:28:22,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:28:22,552 INFO L87 Difference]: Start difference. First operand 5902 states and 8392 transitions. Second operand has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 10:28:22,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:22,961 INFO L93 Difference]: Finished difference Result 11805 states and 17002 transitions. [2024-12-02 10:28:22,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:28:22,962 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 181 [2024-12-02 10:28:22,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:22,997 INFO L225 Difference]: With dead ends: 11805 [2024-12-02 10:28:22,998 INFO L226 Difference]: Without dead ends: 5917 [2024-12-02 10:28:23,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:28:23,024 INFO L435 NwaCegarLoop]: 1625 mSDtfsCounter, 0 mSDsluCounter, 4866 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6491 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:23,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6491 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:28:23,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5917 states. [2024-12-02 10:28:23,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5917 to 5917. [2024-12-02 10:28:23,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5917 states, 4329 states have (on average 1.2855162855162856) internal successors, (5565), 4393 states have internal predecessors, (5565), 1292 states have call successors, (1292), 264 states have call predecessors, (1292), 295 states have return successors, (1550), 1289 states have call predecessors, (1550), 1288 states have call successors, (1550) [2024-12-02 10:28:23,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5917 states to 5917 states and 8407 transitions. [2024-12-02 10:28:23,204 INFO L78 Accepts]: Start accepts. Automaton has 5917 states and 8407 transitions. Word has length 181 [2024-12-02 10:28:23,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:23,204 INFO L471 AbstractCegarLoop]: Abstraction has 5917 states and 8407 transitions. [2024-12-02 10:28:23,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 10:28:23,204 INFO L276 IsEmpty]: Start isEmpty. Operand 5917 states and 8407 transitions. [2024-12-02 10:28:23,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-12-02 10:28:23,207 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:23,207 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:23,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 10:28:23,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:28:23,408 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:28:23,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:23,408 INFO L85 PathProgramCache]: Analyzing trace with hash 619615177, now seen corresponding path program 2 times [2024-12-02 10:28:23,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:28:23,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021145155] [2024-12-02 10:28:23,408 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:28:23,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:28:30,395 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:28:30,395 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:28:31,586 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-02 10:28:31,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:28:31,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021145155] [2024-12-02 10:28:31,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021145155] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:28:31,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408550722] [2024-12-02 10:28:31,586 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:28:31,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:28:31,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:28:31,588 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:28:31,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a794263-822d-4224-b80e-909d26ac6b3d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process