./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--aty--radeonfb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4784a0fc-63fb-43eb-9e07-e07a0b929fea/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4784a0fc-63fb-43eb-9e07-e07a0b929fea/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4784a0fc-63fb-43eb-9e07-e07a0b929fea/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4784a0fc-63fb-43eb-9e07-e07a0b929fea/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--aty--radeonfb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4784a0fc-63fb-43eb-9e07-e07a0b929fea/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4784a0fc-63fb-43eb-9e07-e07a0b929fea/bin/utaipan-verify-nQ1chXbOIh --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8617496e14c7e02e61426a9b36d40149cd7ab2d833fa4b8ca7358faa220fba43 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:28:58,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:28:58,932 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4784a0fc-63fb-43eb-9e07-e07a0b929fea/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 13:28:58,938 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:28:58,938 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:28:58,964 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:28:58,964 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:28:58,965 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:28:58,965 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:28:58,966 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:28:58,966 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:28:58,967 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:28:58,968 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:28:58,968 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:28:58,969 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:28:58,969 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:28:58,970 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:28:58,970 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:28:58,971 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:28:58,971 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:28:58,972 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:28:58,975 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:28:58,976 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:28:58,976 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:28:58,977 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:28:58,977 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:28:58,977 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:28:58,977 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:28:58,978 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:28:58,978 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:28:58,978 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:28:58,979 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:28:58,979 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:28:58,979 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:28:58,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:28:58,980 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:28:58,980 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:28:58,980 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:28:58,980 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:28:58,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:28:58,981 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:28:58,981 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:28:58,981 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:28:58,982 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:28:58,982 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4784a0fc-63fb-43eb-9e07-e07a0b929fea/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4784a0fc-63fb-43eb-9e07-e07a0b929fea/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8617496e14c7e02e61426a9b36d40149cd7ab2d833fa4b8ca7358faa220fba43 [2023-12-02 13:28:59,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:28:59,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:28:59,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:28:59,222 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:28:59,222 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:28:59,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4784a0fc-63fb-43eb-9e07-e07a0b929fea/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--aty--radeonfb.ko-entry_point.cil.out.i [2023-12-02 13:29:01,933 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:29:02,505 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:29:02,506 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4784a0fc-63fb-43eb-9e07-e07a0b929fea/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--aty--radeonfb.ko-entry_point.cil.out.i [2023-12-02 13:29:02,553 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4784a0fc-63fb-43eb-9e07-e07a0b929fea/bin/utaipan-verify-nQ1chXbOIh/data/04985ed30/08df2a08769049b585efcfa8f64d43c4/FLAGfbeb5b861 [2023-12-02 13:29:02,567 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4784a0fc-63fb-43eb-9e07-e07a0b929fea/bin/utaipan-verify-nQ1chXbOIh/data/04985ed30/08df2a08769049b585efcfa8f64d43c4 [2023-12-02 13:29:02,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:29:02,570 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:29:02,572 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:29:02,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:29:02,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:29:02,578 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:29:02" (1/1) ... [2023-12-02 13:29:02,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42edff5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:02, skipping insertion in model container [2023-12-02 13:29:02,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:29:02" (1/1) ... [2023-12-02 13:29:02,736 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:29:05,487 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4784a0fc-63fb-43eb-9e07-e07a0b929fea/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--aty--radeonfb.ko-entry_point.cil.out.i[416111,416124] [2023-12-02 13:29:05,738 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:29:05,790 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:29:05,889 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"./arch/x86/include/asm/paravirt.h"), "i" (841), "i" (12UL)); [4114-4115] [2023-12-02 13:29:05,891 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (45UL), [paravirt_opptr] "i" (& pv_irq_ops.irq_disable.func), [paravirt_clobber] "i" (1): "memory", "cc"); [4120-4122] [2023-12-02 13:29:05,892 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"./arch/x86/include/asm/paravirt.h"), "i" (846), "i" (12UL)); [4143-4144] [2023-12-02 13:29:05,892 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (46UL), [paravirt_opptr] "i" (& pv_irq_ops.irq_enable.func), [paravirt_clobber] "i" (1): "memory", "cc"); [4149-4151] [2023-12-02 13:29:05,896 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [4311] [2023-12-02 13:29:05,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [4319] [2023-12-02 13:29:05,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [4327] [2023-12-02 13:29:05,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [4334] [2023-12-02 13:29:05,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [4341] [2023-12-02 13:29:05,942 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" ((__u32 *)arg), "i" (4UL)); [5528-5529] [2023-12-02 13:29:05,944 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" ((__u32 *)arg): "ebx"); [5576] [2023-12-02 13:29:05,945 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" ((__u32 *)arg): "ebx"); [5579] [2023-12-02 13:29:05,945 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" ((__u32 *)arg): "ebx"); [5582] [2023-12-02 13:29:05,945 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" ((__u32 *)arg): "ebx"); [5585] [2023-12-02 13:29:05,946 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" ((__u32 *)arg): "ebx"); [5588] [2023-12-02 13:29:06,238 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4784a0fc-63fb-43eb-9e07-e07a0b929fea/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--aty--radeonfb.ko-entry_point.cil.out.i[416111,416124] [2023-12-02 13:29:06,250 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:29:06,457 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:29:06,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:06 WrapperNode [2023-12-02 13:29:06,458 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:29:06,459 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:29:06,459 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:29:06,460 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:29:06,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:06" (1/1) ... [2023-12-02 13:29:06,635 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:06" (1/1) ... [2023-12-02 13:29:07,065 INFO L138 Inliner]: procedures = 421, calls = 6563, calls flagged for inlining = 155, calls inlined = 151, statements flattened = 16538 [2023-12-02 13:29:07,066 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:29:07,066 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:29:07,067 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:29:07,067 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:29:07,077 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:06" (1/1) ... [2023-12-02 13:29:07,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:06" (1/1) ... [2023-12-02 13:29:07,200 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:06" (1/1) ... [2023-12-02 13:29:07,201 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:06" (1/1) ... [2023-12-02 13:29:07,603 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:06" (1/1) ... [2023-12-02 13:29:07,649 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:06" (1/1) ... [2023-12-02 13:29:07,701 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:06" (1/1) ... [2023-12-02 13:29:07,731 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:06" (1/1) ... [2023-12-02 13:29:07,815 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:29:07,816 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:29:07,816 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:29:07,816 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:29:07,817 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:06" (1/1) ... [2023-12-02 13:29:07,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:29:07,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4784a0fc-63fb-43eb-9e07-e07a0b929fea/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:29:07,842 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4784a0fc-63fb-43eb-9e07-e07a0b929fea/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:29:07,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4784a0fc-63fb-43eb-9e07-e07a0b929fea/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:29:07,882 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_delete_i2c_busses [2023-12-02 13:29:07,883 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_delete_i2c_busses [2023-12-02 13:29:07,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2023-12-02 13:29:07,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2023-12-02 13:29:07,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-12-02 13:29:07,883 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-12-02 13:29:07,883 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_fixup_offset [2023-12-02 13:29:07,884 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_fixup_offset [2023-12-02 13:29:07,884 INFO L130 BoogieDeclarations]: Found specification of procedure _OUTREGP [2023-12-02 13:29:07,884 INFO L138 BoogieDeclarations]: Found implementation of procedure _OUTREGP [2023-12-02 13:29:07,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 13:29:07,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 13:29:07,885 INFO L130 BoogieDeclarations]: Found specification of procedure _radeon_engine_idle___0 [2023-12-02 13:29:07,885 INFO L138 BoogieDeclarations]: Found implementation of procedure _radeon_engine_idle___0 [2023-12-02 13:29:07,885 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_setup_i2c_bus [2023-12-02 13:29:07,885 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_setup_i2c_bus [2023-12-02 13:29:07,885 INFO L130 BoogieDeclarations]: Found specification of procedure _radeon_engine_idle___1 [2023-12-02 13:29:07,886 INFO L138 BoogieDeclarations]: Found implementation of procedure _radeon_engine_idle___1 [2023-12-02 13:29:07,886 INFO L130 BoogieDeclarations]: Found specification of procedure var_to_depth [2023-12-02 13:29:07,886 INFO L138 BoogieDeclarations]: Found implementation of procedure var_to_depth [2023-12-02 13:29:07,886 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_videomode_to_var [2023-12-02 13:29:07,887 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_videomode_to_var [2023-12-02 13:29:07,887 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-12-02 13:29:07,887 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-12-02 13:29:07,887 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_pm_yclk_mclk_sync [2023-12-02 13:29:07,887 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_pm_yclk_mclk_sync [2023-12-02 13:29:07,887 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_engine_flush___1 [2023-12-02 13:29:07,888 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_engine_flush___1 [2023-12-02 13:29:07,888 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-12-02 13:29:07,888 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-12-02 13:29:07,888 INFO L130 BoogieDeclarations]: Found specification of procedure radeonfb_pm_init [2023-12-02 13:29:07,888 INFO L138 BoogieDeclarations]: Found implementation of procedure radeonfb_pm_init [2023-12-02 13:29:07,888 INFO L130 BoogieDeclarations]: Found specification of procedure __INPLL___1 [2023-12-02 13:29:07,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __INPLL___1 [2023-12-02 13:29:07,889 INFO L130 BoogieDeclarations]: Found specification of procedure __INPLL___0 [2023-12-02 13:29:07,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __INPLL___0 [2023-12-02 13:29:07,889 INFO L130 BoogieDeclarations]: Found specification of procedure __INPLL___3 [2023-12-02 13:29:07,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __INPLL___3 [2023-12-02 13:29:07,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_backlight_device [2023-12-02 13:29:07,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_backlight_device [2023-12-02 13:29:07,889 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-12-02 13:29:07,889 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-12-02 13:29:07,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-12-02 13:29:07,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-12-02 13:29:07,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 13:29:07,890 INFO L130 BoogieDeclarations]: Found specification of procedure _radeon_msleep___0 [2023-12-02 13:29:07,890 INFO L138 BoogieDeclarations]: Found implementation of procedure _radeon_msleep___0 [2023-12-02 13:29:07,890 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-12-02 13:29:07,891 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-12-02 13:29:07,891 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_set_suspend [2023-12-02 13:29:07,891 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_set_suspend [2023-12-02 13:29:07,891 INFO L130 BoogieDeclarations]: Found specification of procedure _radeon_fifo_wait [2023-12-02 13:29:07,891 INFO L138 BoogieDeclarations]: Found implementation of procedure _radeon_fifo_wait [2023-12-02 13:29:07,891 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-12-02 13:29:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-12-02 13:29:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-12-02 13:29:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-12-02 13:29:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_pm_save_regs [2023-12-02 13:29:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_pm_save_regs [2023-12-02 13:29:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 13:29:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2023-12-02 13:29:07,893 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2023-12-02 13:29:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-12-02 13:29:07,893 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-12-02 13:29:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 13:29:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_pm_enable_dll [2023-12-02 13:29:07,893 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_pm_enable_dll [2023-12-02 13:29:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2023-12-02 13:29:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2023-12-02 13:29:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 13:29:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure __INPLL [2023-12-02 13:29:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __INPLL [2023-12-02 13:29:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_get_dstbpp [2023-12-02 13:29:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_get_dstbpp [2023-12-02 13:29:07,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 13:29:07,895 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 13:29:07,895 INFO L130 BoogieDeclarations]: Found specification of procedure _radeon_engine_idle [2023-12-02 13:29:07,895 INFO L138 BoogieDeclarations]: Found implementation of procedure _radeon_engine_idle [2023-12-02 13:29:07,895 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_get_mon_name [2023-12-02 13:29:07,895 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_get_mon_name [2023-12-02 13:29:07,895 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_show_one_edid [2023-12-02 13:29:07,896 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_show_one_edid [2023-12-02 13:29:07,896 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_write_mode [2023-12-02 13:29:07,896 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_write_mode [2023-12-02 13:29:07,896 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-12-02 13:29:07,896 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-12-02 13:29:07,896 INFO L130 BoogieDeclarations]: Found specification of procedure INMC [2023-12-02 13:29:07,896 INFO L138 BoogieDeclarations]: Found implementation of procedure INMC [2023-12-02 13:29:07,896 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_bl_get_level_brightness [2023-12-02 13:29:07,896 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_bl_get_level_brightness [2023-12-02 13:29:07,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-12-02 13:29:07,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-12-02 13:29:07,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 13:29:07,897 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2023-12-02 13:29:07,897 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2023-12-02 13:29:07,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_backlight_device [2023-12-02 13:29:07,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_backlight_device [2023-12-02 13:29:07,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:29:07,898 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-12-02 13:29:07,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-12-02 13:29:07,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 13:29:07,898 INFO L130 BoogieDeclarations]: Found specification of procedure fb_find_mode [2023-12-02 13:29:07,898 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_find_mode [2023-12-02 13:29:07,898 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2023-12-02 13:29:07,899 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2023-12-02 13:29:07,899 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-12-02 13:29:07,899 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-12-02 13:29:07,899 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_pll_errata_after_data___3 [2023-12-02 13:29:07,899 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_pll_errata_after_data___3 [2023-12-02 13:29:07,899 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_pll_errata_after_data___1 [2023-12-02 13:29:07,899 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_pll_errata_after_data___1 [2023-12-02 13:29:07,899 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_pll_errata_after_data___0 [2023-12-02 13:29:07,900 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_pll_errata_after_data___0 [2023-12-02 13:29:07,900 INFO L130 BoogieDeclarations]: Found specification of procedure OUTMC [2023-12-02 13:29:07,900 INFO L138 BoogieDeclarations]: Found implementation of procedure OUTMC [2023-12-02 13:29:07,900 INFO L130 BoogieDeclarations]: Found specification of procedure round_div [2023-12-02 13:29:07,900 INFO L138 BoogieDeclarations]: Found implementation of procedure round_div [2023-12-02 13:29:07,900 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_pm_disable_dynamic_mode [2023-12-02 13:29:07,900 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_pm_disable_dynamic_mode [2023-12-02 13:29:07,900 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_adapter [2023-12-02 13:29:07,901 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_adapter [2023-12-02 13:29:07,901 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-12-02 13:29:07,901 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-12-02 13:29:07,901 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_bl_update_status [2023-12-02 13:29:07,901 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_bl_update_status [2023-12-02 13:29:07,901 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2023-12-02 13:29:07,901 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2023-12-02 13:29:07,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:29:07,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:29:07,902 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-12-02 13:29:07,902 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-12-02 13:29:07,902 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_var_to_panel_info [2023-12-02 13:29:07,902 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_var_to_panel_info [2023-12-02 13:29:07,902 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_suspend [2023-12-02 13:29:07,902 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_suspend [2023-12-02 13:29:07,903 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-12-02 13:29:07,903 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-12-02 13:29:07,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 13:29:07,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 13:29:07,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 13:29:07,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 13:29:07,903 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_bin_file [2023-12-02 13:29:07,904 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_bin_file [2023-12-02 13:29:07,904 INFO L130 BoogieDeclarations]: Found specification of procedure __OUTPLLP [2023-12-02 13:29:07,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __OUTPLLP [2023-12-02 13:29:07,904 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_release [2023-12-02 13:29:07,904 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_release [2023-12-02 13:29:07,904 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2023-12-02 13:29:07,905 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2023-12-02 13:29:07,905 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_crt_is_connected [2023-12-02 13:29:07,905 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_crt_is_connected [2023-12-02 13:29:07,905 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-12-02 13:29:07,905 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-12-02 13:29:07,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-12-02 13:29:07,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-12-02 13:29:07,906 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_probe_i2c_connector [2023-12-02 13:29:07,906 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_probe_i2c_connector [2023-12-02 13:29:07,906 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_pm_enable_dynamic_mode [2023-12-02 13:29:07,906 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_pm_enable_dynamic_mode [2023-12-02 13:29:07,906 INFO L130 BoogieDeclarations]: Found specification of procedure __OUTPLL [2023-12-02 13:29:07,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __OUTPLL [2023-12-02 13:29:07,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 13:29:07,907 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 13:29:07,907 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 13:29:07,907 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 13:29:07,907 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-12-02 13:29:07,907 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-12-02 13:29:07,907 INFO L130 BoogieDeclarations]: Found specification of procedure radeonfb_engine_init [2023-12-02 13:29:07,908 INFO L138 BoogieDeclarations]: Found implementation of procedure radeonfb_engine_init [2023-12-02 13:29:07,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 13:29:07,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 13:29:07,908 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2023-12-02 13:29:07,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2023-12-02 13:29:07,908 INFO L130 BoogieDeclarations]: Found specification of procedure __OUTPLLP___0 [2023-12-02 13:29:07,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __OUTPLLP___0 [2023-12-02 13:29:07,908 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_screen_blank [2023-12-02 13:29:07,908 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_screen_blank [2023-12-02 13:29:07,909 INFO L130 BoogieDeclarations]: Found specification of procedure fb_dealloc_cmap [2023-12-02 13:29:07,909 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_dealloc_cmap [2023-12-02 13:29:07,909 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-12-02 13:29:07,909 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-12-02 13:29:07,909 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_unmap_ROM [2023-12-02 13:29:07,909 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_unmap_ROM [2023-12-02 13:29:07,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 13:29:07,909 INFO L130 BoogieDeclarations]: Found specification of procedure radeonfb_set_par [2023-12-02 13:29:07,909 INFO L138 BoogieDeclarations]: Found implementation of procedure radeonfb_set_par [2023-12-02 13:29:07,910 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-12-02 13:29:07,910 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-12-02 13:29:07,910 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2023-12-02 13:29:07,910 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2023-12-02 13:29:07,910 INFO L130 BoogieDeclarations]: Found specification of procedure radeonfb_pci_resume [2023-12-02 13:29:07,910 INFO L138 BoogieDeclarations]: Found implementation of procedure radeonfb_pci_resume [2023-12-02 13:29:07,910 INFO L130 BoogieDeclarations]: Found specification of procedure bl_get_data [2023-12-02 13:29:07,910 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_get_data [2023-12-02 13:29:07,910 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modedb [2023-12-02 13:29:07,910 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modedb [2023-12-02 13:29:07,911 INFO L130 BoogieDeclarations]: Found specification of procedure radeonfb_pci_unregister [2023-12-02 13:29:07,911 INFO L138 BoogieDeclarations]: Found implementation of procedure radeonfb_pci_unregister [2023-12-02 13:29:07,911 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-12-02 13:29:07,911 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-12-02 13:29:07,911 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_pm_full_reset_sdram [2023-12-02 13:29:07,911 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_pm_full_reset_sdram [2023-12-02 13:29:07,911 INFO L130 BoogieDeclarations]: Found specification of procedure _radeon_fifo_wait___2 [2023-12-02 13:29:07,911 INFO L138 BoogieDeclarations]: Found implementation of procedure _radeon_fifo_wait___2 [2023-12-02 13:29:07,911 INFO L130 BoogieDeclarations]: Found specification of procedure _radeon_fifo_wait___1 [2023-12-02 13:29:07,912 INFO L138 BoogieDeclarations]: Found implementation of procedure _radeon_fifo_wait___1 [2023-12-02 13:29:07,912 INFO L130 BoogieDeclarations]: Found specification of procedure _radeon_fifo_wait___0 [2023-12-02 13:29:07,912 INFO L138 BoogieDeclarations]: Found implementation of procedure _radeon_fifo_wait___0 [2023-12-02 13:29:07,912 INFO L130 BoogieDeclarations]: Found specification of procedure radeonfb_sync [2023-12-02 13:29:07,912 INFO L138 BoogieDeclarations]: Found implementation of procedure radeonfb_sync [2023-12-02 13:29:07,912 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_pm_program_mode_reg [2023-12-02 13:29:07,912 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_pm_program_mode_reg [2023-12-02 13:29:07,913 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-12-02 13:29:07,913 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-12-02 13:29:07,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 13:29:07,913 INFO L130 BoogieDeclarations]: Found specification of procedure _radeon_msleep [2023-12-02 13:29:07,913 INFO L138 BoogieDeclarations]: Found implementation of procedure _radeon_msleep [2023-12-02 13:29:07,913 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-12-02 13:29:07,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-12-02 13:29:07,913 INFO L130 BoogieDeclarations]: Found specification of procedure __OUTPLL___3 [2023-12-02 13:29:07,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __OUTPLL___3 [2023-12-02 13:29:07,914 INFO L130 BoogieDeclarations]: Found specification of procedure __OUTPLL___1 [2023-12-02 13:29:07,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __OUTPLL___1 [2023-12-02 13:29:07,914 INFO L130 BoogieDeclarations]: Found specification of procedure __OUTPLL___0 [2023-12-02 13:29:07,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __OUTPLL___0 [2023-12-02 13:29:07,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-12-02 13:29:07,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-12-02 13:29:07,914 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_map_ROM [2023-12-02 13:29:07,915 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_map_ROM [2023-12-02 13:29:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-12-02 13:29:07,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-12-02 13:29:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_region [2023-12-02 13:29:07,915 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_region [2023-12-02 13:29:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_setcolreg [2023-12-02 13:29:07,915 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_setcolreg [2023-12-02 13:29:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_pll_errata_after_data [2023-12-02 13:29:07,915 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_pll_errata_after_data [2023-12-02 13:29:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2023-12-02 13:29:07,916 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2023-12-02 13:29:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_pm_restore_regs [2023-12-02 13:29:07,916 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_pm_restore_regs [2023-12-02 13:29:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2023-12-02 13:29:07,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2023-12-02 13:29:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2023-12-02 13:29:07,916 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2023-12-02 13:29:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-12-02 13:29:07,916 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-12-02 13:29:07,917 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-12-02 13:29:07,917 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-12-02 13:29:07,917 INFO L130 BoogieDeclarations]: Found specification of procedure radeon_pll_errata_after_index [2023-12-02 13:29:07,917 INFO L138 BoogieDeclarations]: Found implementation of procedure radeon_pll_errata_after_index [2023-12-02 13:29:07,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:29:07,917 INFO L130 BoogieDeclarations]: Found specification of procedure radeonfb_engine_reset [2023-12-02 13:29:07,917 INFO L138 BoogieDeclarations]: Found implementation of procedure radeonfb_engine_reset [2023-12-02 13:29:07,917 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_bin_file [2023-12-02 13:29:07,917 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_bin_file [2023-12-02 13:29:07,918 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2023-12-02 13:29:07,918 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2023-12-02 13:29:09,096 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:29:09,100 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:29:09,909 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 13:29:35,137 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:29:47,334 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:29:47,334 INFO L309 CfgBuilder]: Removed 41 assume(true) statements. [2023-12-02 13:29:47,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:29:47 BoogieIcfgContainer [2023-12-02 13:29:47,338 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:29:47,340 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:29:47,341 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:29:47,344 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:29:47,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:29:02" (1/3) ... [2023-12-02 13:29:47,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10c6cea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:29:47, skipping insertion in model container [2023-12-02 13:29:47,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:06" (2/3) ... [2023-12-02 13:29:47,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10c6cea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:29:47, skipping insertion in model container [2023-12-02 13:29:47,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:29:47" (3/3) ... [2023-12-02 13:29:47,347 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--aty--radeonfb.ko-entry_point.cil.out.i [2023-12-02 13:29:47,366 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:29:47,367 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:29:47,485 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:29:47,489 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@1b142db4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:29:47,490 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:29:47,509 INFO L276 IsEmpty]: Start isEmpty. Operand has 4119 states, 2392 states have (on average 1.2387123745819397) internal successors, (2963), 2528 states have internal predecessors, (2963), 1641 states have call successors, (1641), 121 states have call predecessors, (1641), 120 states have return successors, (1634), 1621 states have call predecessors, (1634), 1634 states have call successors, (1634) [2023-12-02 13:29:47,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-12-02 13:29:47,531 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:29:47,532 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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] [2023-12-02 13:29:47,532 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:29:47,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:29:47,537 INFO L85 PathProgramCache]: Analyzing trace with hash -576133749, now seen corresponding path program 1 times [2023-12-02 13:29:47,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:29:47,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386076468] [2023-12-02 13:29:47,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:29:47,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:30:06,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:30:07,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2023-12-02 13:30:07,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:30:07,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386076468] [2023-12-02 13:30:07,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386076468] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:30:07,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:30:07,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:30:07,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686326725] [2023-12-02 13:30:07,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:30:07,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:30:07,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:30:07,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:30:07,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:30:07,373 INFO L87 Difference]: Start difference. First operand has 4119 states, 2392 states have (on average 1.2387123745819397) internal successors, (2963), 2528 states have internal predecessors, (2963), 1641 states have call successors, (1641), 121 states have call predecessors, (1641), 120 states have return successors, (1634), 1621 states have call predecessors, (1634), 1634 states have call successors, (1634) Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2023-12-02 13:30:10,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:30:12,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:30:15,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:30:16,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:30:18,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:30:19,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:30:20,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:30:22,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:30:25,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:30:26,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:30:28,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:30:30,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:30:33,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:30:35,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:30:37,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:30:39,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:30:41,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:30:43,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:30:46,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:30:48,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:30:50,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:30:52,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:30:54,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:30:56,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:30:59,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:31:01,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:31:03,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:31:05,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:31:07,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:31:09,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:31:11,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:31:11,963 INFO L93 Difference]: Finished difference Result 12005 states and 18221 transitions. [2023-12-02 13:31:11,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:31:11,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 274 [2023-12-02 13:31:11,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:31:12,039 INFO L225 Difference]: With dead ends: 12005 [2023-12-02 13:31:12,039 INFO L226 Difference]: Without dead ends: 7921 [2023-12-02 13:31:12,077 INFO L412 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 [2023-12-02 13:31:12,080 INFO L413 NwaCegarLoop]: 6174 mSDtfsCounter, 5896 mSDsluCounter, 5435 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 3 mSolverCounterUnsat, 22 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5896 SdHoareTripleChecker+Valid, 11609 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 22 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:31:12,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5896 Valid, 11609 Invalid, 1217 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1192 Invalid, 22 Unknown, 0 Unchecked, 64.0s Time] [2023-12-02 13:31:12,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7921 states. [2023-12-02 13:31:12,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7921 to 7917. [2023-12-02 13:31:13,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7917 states, 4520 states have (on average 1.2300884955752212) internal successors, (5560), 4706 states have internal predecessors, (5560), 3159 states have call successors, (3159), 238 states have call predecessors, (3159), 237 states have return successors, (3152), 3126 states have call predecessors, (3152), 3152 states have call successors, (3152) [2023-12-02 13:31:13,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7917 states to 7917 states and 11871 transitions. [2023-12-02 13:31:13,089 INFO L78 Accepts]: Start accepts. Automaton has 7917 states and 11871 transitions. Word has length 274 [2023-12-02 13:31:13,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:31:13,091 INFO L495 AbstractCegarLoop]: Abstraction has 7917 states and 11871 transitions. [2023-12-02 13:31:13,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2023-12-02 13:31:13,092 INFO L276 IsEmpty]: Start isEmpty. Operand 7917 states and 11871 transitions. [2023-12-02 13:31:13,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2023-12-02 13:31:13,103 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:31:13,104 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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] [2023-12-02 13:31:13,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:31:13,104 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:31:13,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:31:13,105 INFO L85 PathProgramCache]: Analyzing trace with hash -137257690, now seen corresponding path program 1 times [2023-12-02 13:31:13,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:31:13,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581530816] [2023-12-02 13:31:13,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:31:13,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:31:30,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:31:31,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1210 trivial. 0 not checked. [2023-12-02 13:31:31,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:31:31,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581530816] [2023-12-02 13:31:31,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581530816] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:31:31,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:31:31,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:31:31,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915895309] [2023-12-02 13:31:31,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:31:31,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:31:31,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:31:31,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:31:31,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:31:31,194 INFO L87 Difference]: Start difference. First operand 7917 states and 11871 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-02 13:31:33,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:31:35,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:31:37,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:31:39,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:31:41,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:31:43,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:31:44,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:31:46,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:31:49,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:31:51,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:31:53,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:31:55,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:31:55,503 INFO L93 Difference]: Finished difference Result 7919 states and 11872 transitions. [2023-12-02 13:31:55,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:31:55,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 289 [2023-12-02 13:31:55,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:31:55,550 INFO L225 Difference]: With dead ends: 7919 [2023-12-02 13:31:55,550 INFO L226 Difference]: Without dead ends: 7916 [2023-12-02 13:31:55,555 INFO L412 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 [2023-12-02 13:31:55,556 INFO L413 NwaCegarLoop]: 5422 mSDtfsCounter, 5924 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5924 SdHoareTripleChecker+Valid, 5422 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:31:55,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5924 Valid, 5422 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 562 Invalid, 7 Unknown, 0 Unchecked, 24.0s Time] [2023-12-02 13:31:55,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7916 states. [2023-12-02 13:31:56,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7916 to 7916. [2023-12-02 13:31:56,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7916 states, 4520 states have (on average 1.2298672566371682) internal successors, (5559), 4705 states have internal predecessors, (5559), 3158 states have call successors, (3158), 238 states have call predecessors, (3158), 237 states have return successors, (3152), 3126 states have call predecessors, (3152), 3152 states have call successors, (3152) [2023-12-02 13:31:56,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7916 states to 7916 states and 11869 transitions. [2023-12-02 13:31:56,340 INFO L78 Accepts]: Start accepts. Automaton has 7916 states and 11869 transitions. Word has length 289 [2023-12-02 13:31:56,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:31:56,342 INFO L495 AbstractCegarLoop]: Abstraction has 7916 states and 11869 transitions. [2023-12-02 13:31:56,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-02 13:31:56,342 INFO L276 IsEmpty]: Start isEmpty. Operand 7916 states and 11869 transitions. [2023-12-02 13:31:56,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-12-02 13:31:56,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:31:56,350 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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] [2023-12-02 13:31:56,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 13:31:56,350 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:31:56,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:31:56,351 INFO L85 PathProgramCache]: Analyzing trace with hash 37381585, now seen corresponding path program 1 times [2023-12-02 13:31:56,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:31:56,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290730010] [2023-12-02 13:31:56,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:31:56,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:32:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:32:16,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1210 trivial. 0 not checked. [2023-12-02 13:32:16,273 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:32:16,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290730010] [2023-12-02 13:32:16,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290730010] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:32:16,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:32:16,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:32:16,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996846130] [2023-12-02 13:32:16,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:32:16,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:32:16,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:32:16,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:32:16,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:32:16,276 INFO L87 Difference]: Start difference. First operand 7916 states and 11869 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-02 13:32:17,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:32:20,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:32:21,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:32:25,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:32:27,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:32:29,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:32:31,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:32:34,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:32:36,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:32:38,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:32:40,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:32:42,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:32:42,446 INFO L93 Difference]: Finished difference Result 7918 states and 11870 transitions. [2023-12-02 13:32:42,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:32:42,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 290 [2023-12-02 13:32:42,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:32:42,529 INFO L225 Difference]: With dead ends: 7918 [2023-12-02 13:32:42,529 INFO L226 Difference]: Without dead ends: 7915 [2023-12-02 13:32:42,536 INFO L412 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 [2023-12-02 13:32:42,537 INFO L413 NwaCegarLoop]: 5420 mSDtfsCounter, 5921 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5921 SdHoareTripleChecker+Valid, 5420 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.8s IncrementalHoareTripleChecker+Time [2023-12-02 13:32:42,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5921 Valid, 5420 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 561 Invalid, 8 Unknown, 0 Unchecked, 25.8s Time] [2023-12-02 13:32:42,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7915 states. [2023-12-02 13:32:43,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7915 to 7915. [2023-12-02 13:32:43,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7915 states, 4520 states have (on average 1.229646017699115) internal successors, (5558), 4704 states have internal predecessors, (5558), 3157 states have call successors, (3157), 238 states have call predecessors, (3157), 237 states have return successors, (3152), 3126 states have call predecessors, (3152), 3152 states have call successors, (3152) [2023-12-02 13:32:43,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7915 states to 7915 states and 11867 transitions. [2023-12-02 13:32:43,406 INFO L78 Accepts]: Start accepts. Automaton has 7915 states and 11867 transitions. Word has length 290 [2023-12-02 13:32:43,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:32:43,407 INFO L495 AbstractCegarLoop]: Abstraction has 7915 states and 11867 transitions. [2023-12-02 13:32:43,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-02 13:32:43,408 INFO L276 IsEmpty]: Start isEmpty. Operand 7915 states and 11867 transitions. [2023-12-02 13:32:43,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-12-02 13:32:43,416 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:32:43,417 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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] [2023-12-02 13:32:43,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 13:32:43,417 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:32:43,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:32:43,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1156236681, now seen corresponding path program 1 times [2023-12-02 13:32:43,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:32:43,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549868100] [2023-12-02 13:32:43,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:32:43,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:33:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:33:03,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1210 trivial. 0 not checked. [2023-12-02 13:33:03,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:33:03,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549868100] [2023-12-02 13:33:03,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549868100] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:33:03,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:33:03,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:33:03,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631235467] [2023-12-02 13:33:03,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:33:03,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:33:03,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:33:03,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:33:03,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:33:03,821 INFO L87 Difference]: Start difference. First operand 7915 states and 11867 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-02 13:33:05,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:33:07,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:33:12,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:33:13,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:33:15,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:33:17,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:33:20,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:33:23,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:33:25,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:33:27,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:33:28,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:33:28,165 INFO L93 Difference]: Finished difference Result 7917 states and 11868 transitions. [2023-12-02 13:33:28,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:33:28,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 291 [2023-12-02 13:33:28,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:33:28,205 INFO L225 Difference]: With dead ends: 7917 [2023-12-02 13:33:28,205 INFO L226 Difference]: Without dead ends: 7914 [2023-12-02 13:33:28,210 INFO L412 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 [2023-12-02 13:33:28,211 INFO L413 NwaCegarLoop]: 5418 mSDtfsCounter, 5918 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5918 SdHoareTripleChecker+Valid, 5418 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:33:28,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5918 Valid, 5418 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 562 Invalid, 7 Unknown, 0 Unchecked, 24.0s Time] [2023-12-02 13:33:28,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7914 states. [2023-12-02 13:33:28,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7914 to 7914. [2023-12-02 13:33:28,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7914 states, 4520 states have (on average 1.229424778761062) internal successors, (5557), 4703 states have internal predecessors, (5557), 3156 states have call successors, (3156), 238 states have call predecessors, (3156), 237 states have return successors, (3152), 3126 states have call predecessors, (3152), 3152 states have call successors, (3152) [2023-12-02 13:33:28,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7914 states to 7914 states and 11865 transitions. [2023-12-02 13:33:28,798 INFO L78 Accepts]: Start accepts. Automaton has 7914 states and 11865 transitions. Word has length 291 [2023-12-02 13:33:28,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:33:28,799 INFO L495 AbstractCegarLoop]: Abstraction has 7914 states and 11865 transitions. [2023-12-02 13:33:28,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-02 13:33:28,799 INFO L276 IsEmpty]: Start isEmpty. Operand 7914 states and 11865 transitions. [2023-12-02 13:33:28,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2023-12-02 13:33:28,802 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:33:28,803 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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] [2023-12-02 13:33:28,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 13:33:28,803 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:33:28,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:33:28,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1481011156, now seen corresponding path program 1 times [2023-12-02 13:33:28,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:33:28,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639857791] [2023-12-02 13:33:28,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:33:28,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:33:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:33:47,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1210 trivial. 0 not checked. [2023-12-02 13:33:47,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:33:47,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639857791] [2023-12-02 13:33:47,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639857791] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:33:47,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:33:47,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:33:47,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253032020] [2023-12-02 13:33:47,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:33:47,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:33:47,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:33:47,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:33:47,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:33:47,347 INFO L87 Difference]: Start difference. First operand 7914 states and 11865 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-02 13:33:49,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:33:50,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:33:52,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:33:56,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:33:58,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:34:00,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:34:02,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:34:05,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:34:07,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:34:09,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:34:11,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:34:12,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:34:12,718 INFO L93 Difference]: Finished difference Result 7916 states and 11866 transitions. [2023-12-02 13:34:12,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:34:12,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 292 [2023-12-02 13:34:12,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:34:12,762 INFO L225 Difference]: With dead ends: 7916 [2023-12-02 13:34:12,762 INFO L226 Difference]: Without dead ends: 7913 [2023-12-02 13:34:12,770 INFO L412 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 [2023-12-02 13:34:12,770 INFO L413 NwaCegarLoop]: 5416 mSDtfsCounter, 5915 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5915 SdHoareTripleChecker+Valid, 5416 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:34:12,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5915 Valid, 5416 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 561 Invalid, 8 Unknown, 0 Unchecked, 25.0s Time] [2023-12-02 13:34:12,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7913 states. [2023-12-02 13:34:13,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7913 to 7913. [2023-12-02 13:34:13,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7913 states, 4520 states have (on average 1.2292035398230088) internal successors, (5556), 4702 states have internal predecessors, (5556), 3155 states have call successors, (3155), 238 states have call predecessors, (3155), 237 states have return successors, (3152), 3126 states have call predecessors, (3152), 3152 states have call successors, (3152) [2023-12-02 13:34:13,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7913 states to 7913 states and 11863 transitions. [2023-12-02 13:34:13,610 INFO L78 Accepts]: Start accepts. Automaton has 7913 states and 11863 transitions. Word has length 292 [2023-12-02 13:34:13,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:34:13,611 INFO L495 AbstractCegarLoop]: Abstraction has 7913 states and 11863 transitions. [2023-12-02 13:34:13,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-02 13:34:13,611 INFO L276 IsEmpty]: Start isEmpty. Operand 7913 states and 11863 transitions. [2023-12-02 13:34:13,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2023-12-02 13:34:13,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:34:13,614 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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] [2023-12-02 13:34:13,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 13:34:13,615 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:34:13,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:34:13,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1335877140, now seen corresponding path program 1 times [2023-12-02 13:34:13,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:34:13,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287151045] [2023-12-02 13:34:13,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:34:13,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:34:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:34:31,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1210 trivial. 0 not checked. [2023-12-02 13:34:31,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:34:31,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287151045] [2023-12-02 13:34:31,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287151045] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:34:31,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:34:31,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:34:31,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728496169] [2023-12-02 13:34:31,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:34:31,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:34:31,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:34:31,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:34:31,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:34:31,051 INFO L87 Difference]: Start difference. First operand 7913 states and 11863 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-02 13:34:33,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:34:35,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:34:37,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:34:40,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:34:43,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:34:45,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:34:47,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:34:50,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:34:52,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:34:54,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:34:56,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:35:00,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:35:02,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:35:03,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:35:04,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:35:06,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:35:08,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:35:10,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:35:10,627 INFO L93 Difference]: Finished difference Result 12693 states and 18968 transitions. [2023-12-02 13:35:10,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:35:10,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 293 [2023-12-02 13:35:10,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:35:10,692 INFO L225 Difference]: With dead ends: 12693 [2023-12-02 13:35:10,693 INFO L226 Difference]: Without dead ends: 12683 [2023-12-02 13:35:10,700 INFO L412 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 [2023-12-02 13:35:10,701 INFO L413 NwaCegarLoop]: 5412 mSDtfsCounter, 5865 mSDsluCounter, 3266 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 2 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5865 SdHoareTripleChecker+Valid, 8678 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.8s IncrementalHoareTripleChecker+Time [2023-12-02 13:35:10,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5865 Valid, 8678 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 887 Invalid, 15 Unknown, 0 Unchecked, 38.8s Time] [2023-12-02 13:35:10,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12683 states. [2023-12-02 13:35:11,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12683 to 12683. [2023-12-02 13:35:11,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12683 states, 7024 states have (on average 1.2051537585421412) internal successors, (8465), 7350 states have internal predecessors, (8465), 5245 states have call successors, (5245), 414 states have call predecessors, (5245), 413 states have return successors, (5244), 5192 states have call predecessors, (5244), 5244 states have call successors, (5244) [2023-12-02 13:35:11,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12683 states to 12683 states and 18954 transitions. [2023-12-02 13:35:11,937 INFO L78 Accepts]: Start accepts. Automaton has 12683 states and 18954 transitions. Word has length 293 [2023-12-02 13:35:11,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:35:11,937 INFO L495 AbstractCegarLoop]: Abstraction has 12683 states and 18954 transitions. [2023-12-02 13:35:11,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-02 13:35:11,938 INFO L276 IsEmpty]: Start isEmpty. Operand 12683 states and 18954 transitions. [2023-12-02 13:35:11,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 874 [2023-12-02 13:35:11,986 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:35:11,986 INFO L195 NwaCegarLoop]: trace histogram [45, 14, 14, 13, 13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 7, 7, 7, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:35:11,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 13:35:11,987 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:35:11,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:35:11,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1516781842, now seen corresponding path program 1 times [2023-12-02 13:35:11,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:35:11,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375497392] [2023-12-02 13:35:11,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:35:11,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:35:30,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:35:30,951 INFO L134 CoverageAnalysis]: Checked inductivity of 3615 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2023-12-02 13:35:30,951 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:35:30,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375497392] [2023-12-02 13:35:30,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375497392] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:35:30,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:35:30,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:35:30,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826865437] [2023-12-02 13:35:30,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:35:30,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:35:30,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:35:30,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:35:30,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:35:30,954 INFO L87 Difference]: Start difference. First operand 12683 states and 18954 transitions. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 2 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108) [2023-12-02 13:35:33,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:35:35,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:35:37,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:35:41,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:35:44,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:35:46,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:35:48,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:35:50,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:35:52,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:35:54,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:35:56,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:35:58,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:36:00,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:36:02,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:36:04,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:36:08,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:36:10,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:36:13,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:36:15,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:36:17,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:36:18,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:36:20,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:36:22,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:36:24,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:36:25,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:36:25,335 INFO L93 Difference]: Finished difference Result 27554 states and 41076 transitions. [2023-12-02 13:36:25,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:36:25,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 2 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108) Word has length 873 [2023-12-02 13:36:25,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:36:25,421 INFO L225 Difference]: With dead ends: 27554 [2023-12-02 13:36:25,421 INFO L226 Difference]: Without dead ends: 14928 [2023-12-02 13:36:25,514 INFO L412 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 [2023-12-02 13:36:25,515 INFO L413 NwaCegarLoop]: 5820 mSDtfsCounter, 1701 mSDsluCounter, 5287 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 2 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1701 SdHoareTripleChecker+Valid, 11107 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:36:25,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1701 Valid, 11107 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1198 Invalid, 18 Unknown, 0 Unchecked, 53.4s Time] [2023-12-02 13:36:25,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14928 states. [2023-12-02 13:36:26,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14928 to 14927. [2023-12-02 13:36:26,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14927 states, 8413 states have (on average 1.2187091406157138) internal successors, (10253), 8773 states have internal predecessors, (10253), 5975 states have call successors, (5975), 539 states have call predecessors, (5975), 538 states have return successors, (5974), 5916 states have call predecessors, (5974), 5974 states have call successors, (5974) [2023-12-02 13:36:26,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14927 states to 14927 states and 22202 transitions. [2023-12-02 13:36:26,865 INFO L78 Accepts]: Start accepts. Automaton has 14927 states and 22202 transitions. Word has length 873 [2023-12-02 13:36:26,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:36:26,866 INFO L495 AbstractCegarLoop]: Abstraction has 14927 states and 22202 transitions. [2023-12-02 13:36:26,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 2 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108) [2023-12-02 13:36:26,866 INFO L276 IsEmpty]: Start isEmpty. Operand 14927 states and 22202 transitions. [2023-12-02 13:36:26,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 897 [2023-12-02 13:36:26,914 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:36:26,915 INFO L195 NwaCegarLoop]: trace histogram [45, 14, 14, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 7, 7, 7, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:36:26,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 13:36:26,915 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:36:26,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:36:26,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1917449349, now seen corresponding path program 1 times [2023-12-02 13:36:26,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:36:26,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020282695] [2023-12-02 13:36:26,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:36:26,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:36:44,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:36:45,838 INFO L134 CoverageAnalysis]: Checked inductivity of 3730 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3725 trivial. 0 not checked. [2023-12-02 13:36:45,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:36:45,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020282695] [2023-12-02 13:36:45,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020282695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:36:45,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:36:45,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:36:45,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581736593] [2023-12-02 13:36:45,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:36:45,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:36:45,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:36:45,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:36:45,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:36:45,842 INFO L87 Difference]: Start difference. First operand 14927 states and 22202 transitions. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 2 states have call successors, (111), 2 states have call predecessors, (111), 1 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2023-12-02 13:36:47,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:36:49,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:36:52,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:36:54,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:36:56,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:36:58,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:37:00,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:37:02,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:37:04,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:37:05,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:37:07,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:37:09,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:37:11,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:37:15,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:37:17,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:37:20,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:37:22,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:37:23,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:37:25,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:37:27,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:37:29,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:37:31,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:37:33,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:37:36,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:37:36,372 INFO L93 Difference]: Finished difference Result 23498 states and 34901 transitions. [2023-12-02 13:37:36,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:37:36,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 2 states have call successors, (111), 2 states have call predecessors, (111), 1 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) Word has length 896 [2023-12-02 13:37:36,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:37:36,409 INFO L225 Difference]: With dead ends: 23498 [2023-12-02 13:37:36,409 INFO L226 Difference]: Without dead ends: 8630 [2023-12-02 13:37:36,457 INFO L412 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 [2023-12-02 13:37:36,458 INFO L413 NwaCegarLoop]: 5407 mSDtfsCounter, 0 mSDsluCounter, 5404 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 0 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10811 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.9s IncrementalHoareTripleChecker+Time [2023-12-02 13:37:36,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10811 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1118 Invalid, 18 Unknown, 0 Unchecked, 49.9s Time] [2023-12-02 13:37:36,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8630 states. [2023-12-02 13:37:37,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8630 to 8630. [2023-12-02 13:37:37,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8630 states, 4924 states have (on average 1.2274573517465475) internal successors, (6044), 5121 states have internal predecessors, (6044), 3370 states have call successors, (3370), 336 states have call predecessors, (3370), 335 states have return successors, (3369), 3337 states have call predecessors, (3369), 3369 states have call successors, (3369) [2023-12-02 13:37:37,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8630 states to 8630 states and 12783 transitions. [2023-12-02 13:37:37,158 INFO L78 Accepts]: Start accepts. Automaton has 8630 states and 12783 transitions. Word has length 896 [2023-12-02 13:37:37,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:37:37,159 INFO L495 AbstractCegarLoop]: Abstraction has 8630 states and 12783 transitions. [2023-12-02 13:37:37,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 2 states have call successors, (111), 2 states have call predecessors, (111), 1 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2023-12-02 13:37:37,159 INFO L276 IsEmpty]: Start isEmpty. Operand 8630 states and 12783 transitions. [2023-12-02 13:37:37,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 921 [2023-12-02 13:37:37,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:37:37,188 INFO L195 NwaCegarLoop]: trace histogram [45, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 8, 7, 7, 7, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:37:37,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 13:37:37,188 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:37:37,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:37:37,189 INFO L85 PathProgramCache]: Analyzing trace with hash -2104537223, now seen corresponding path program 1 times [2023-12-02 13:37:37,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:37:37,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59107878] [2023-12-02 13:37:37,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:37:37,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:37:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:37:56,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3980 trivial. 0 not checked. [2023-12-02 13:37:56,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:37:56,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59107878] [2023-12-02 13:37:56,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59107878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:37:56,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:37:56,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:37:56,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911938137] [2023-12-02 13:37:56,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:37:56,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:37:56,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:37:56,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:37:56,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:37:56,146 INFO L87 Difference]: Start difference. First operand 8630 states and 12783 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (113), 2 states have call predecessors, (113), 1 states have return successors, (111), 2 states have call predecessors, (111), 2 states have call successors, (111) [2023-12-02 13:37:58,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:00,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:02,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:04,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:38:06,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:38:09,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:38:11,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:38:13,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:38:15,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:38:17,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:19,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:21,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:23,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:26,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:28,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:31,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:33,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:36,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:38,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:40,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:38:42,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:38:44,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:38:46,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:38:47,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:48,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:38:48,765 INFO L93 Difference]: Finished difference Result 16141 states and 23956 transitions. [2023-12-02 13:38:48,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:38:48,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (113), 2 states have call predecessors, (113), 1 states have return successors, (111), 2 states have call predecessors, (111), 2 states have call successors, (111) Word has length 920 [2023-12-02 13:38:48,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:38:48,795 INFO L225 Difference]: With dead ends: 16141 [2023-12-02 13:38:48,796 INFO L226 Difference]: Without dead ends: 8692 [2023-12-02 13:38:48,818 INFO L412 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 [2023-12-02 13:38:48,818 INFO L413 NwaCegarLoop]: 5433 mSDtfsCounter, 43 mSDsluCounter, 5406 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 6 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 10839 SdHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:38:48,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 10839 Invalid, 1152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1127 Invalid, 19 Unknown, 0 Unchecked, 52.1s Time] [2023-12-02 13:38:48,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8692 states. [2023-12-02 13:38:49,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8692 to 8633. [2023-12-02 13:38:49,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8633 states, 4927 states have (on average 1.227318855287193) internal successors, (6047), 5124 states have internal predecessors, (6047), 3370 states have call successors, (3370), 336 states have call predecessors, (3370), 335 states have return successors, (3369), 3337 states have call predecessors, (3369), 3369 states have call successors, (3369) [2023-12-02 13:38:49,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8633 states to 8633 states and 12786 transitions. [2023-12-02 13:38:49,508 INFO L78 Accepts]: Start accepts. Automaton has 8633 states and 12786 transitions. Word has length 920 [2023-12-02 13:38:49,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:38:49,509 INFO L495 AbstractCegarLoop]: Abstraction has 8633 states and 12786 transitions. [2023-12-02 13:38:49,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (113), 2 states have call predecessors, (113), 1 states have return successors, (111), 2 states have call predecessors, (111), 2 states have call successors, (111) [2023-12-02 13:38:49,509 INFO L276 IsEmpty]: Start isEmpty. Operand 8633 states and 12786 transitions. [2023-12-02 13:38:49,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 936 [2023-12-02 13:38:49,532 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:38:49,533 INFO L195 NwaCegarLoop]: trace histogram [48, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 8, 7, 7, 7, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:38:49,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 13:38:49,533 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:38:49,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:38:49,534 INFO L85 PathProgramCache]: Analyzing trace with hash -885538096, now seen corresponding path program 1 times [2023-12-02 13:38:49,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:38:49,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625325560] [2023-12-02 13:38:49,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:38:49,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:39:07,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:39:08,614 INFO L134 CoverageAnalysis]: Checked inductivity of 4256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4256 trivial. 0 not checked. [2023-12-02 13:39:08,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:39:08,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625325560] [2023-12-02 13:39:08,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625325560] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:39:08,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:39:08,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 13:39:08,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61423483] [2023-12-02 13:39:08,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:39:08,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:39:08,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:39:08,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:39:08,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:39:08,618 INFO L87 Difference]: Start difference. First operand 8633 states and 12786 transitions. Second operand has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 2 states have call successors, (116), 2 states have call predecessors, (116), 1 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) [2023-12-02 13:39:10,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:39:12,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:39:14,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:39:16,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:39:18,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:39:20,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:39:23,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:39:26,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:39:29,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:39:31,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:39:33,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:39:35,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:39:36,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:39:37,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:39:39,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:39:41,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:39:43,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:39:47,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:39:49,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:39:51,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:39:54,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:39:56,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:39:58,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:40:01,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:40:03,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:40:05,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:40:07,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:40:09,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:40:11,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:40:13,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:40:15,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:40:17,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:40:19,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:40:21,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:40:22,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:40:24,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:40:27,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:40:29,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:40:34,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:40:38,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:40:40,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:40:42,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:40:44,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:40:44,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:40:44,990 INFO L93 Difference]: Finished difference Result 17590 states and 26231 transitions. [2023-12-02 13:40:44,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 13:40:44,991 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 2 states have call successors, (116), 2 states have call predecessors, (116), 1 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) Word has length 935 [2023-12-02 13:40:44,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:40:45,034 INFO L225 Difference]: With dead ends: 17590 [2023-12-02 13:40:45,034 INFO L226 Difference]: Without dead ends: 10138 [2023-12-02 13:40:45,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:40:45,065 INFO L413 NwaCegarLoop]: 7028 mSDtfsCounter, 1232 mSDsluCounter, 12706 mSDsCounter, 0 mSdLazyCounter, 2017 mSolverCounterSat, 50 mSolverCounterUnsat, 34 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 94.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1655 SdHoareTripleChecker+Valid, 19734 SdHoareTripleChecker+Invalid, 2101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2017 IncrementalHoareTripleChecker+Invalid, 34 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95.6s IncrementalHoareTripleChecker+Time [2023-12-02 13:40:45,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1655 Valid, 19734 Invalid, 2101 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [50 Valid, 2017 Invalid, 34 Unknown, 0 Unchecked, 95.6s Time] [2023-12-02 13:40:45,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10138 states. [2023-12-02 13:40:45,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10138 to 8635. [2023-12-02 13:40:45,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8635 states, 4929 states have (on average 1.2272266179752485) internal successors, (6049), 5126 states have internal predecessors, (6049), 3370 states have call successors, (3370), 336 states have call predecessors, (3370), 335 states have return successors, (3369), 3337 states have call predecessors, (3369), 3369 states have call successors, (3369) [2023-12-02 13:40:45,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8635 states to 8635 states and 12788 transitions. [2023-12-02 13:40:45,856 INFO L78 Accepts]: Start accepts. Automaton has 8635 states and 12788 transitions. Word has length 935 [2023-12-02 13:40:45,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:40:45,857 INFO L495 AbstractCegarLoop]: Abstraction has 8635 states and 12788 transitions. [2023-12-02 13:40:45,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 2 states have call successors, (116), 2 states have call predecessors, (116), 1 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) [2023-12-02 13:40:45,858 INFO L276 IsEmpty]: Start isEmpty. Operand 8635 states and 12788 transitions. [2023-12-02 13:40:45,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 940 [2023-12-02 13:40:45,880 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:40:45,881 INFO L195 NwaCegarLoop]: trace histogram [48, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 8, 7, 7, 7, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:40:45,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 13:40:45,881 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:40:45,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:40:45,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1824623162, now seen corresponding path program 1 times [2023-12-02 13:40:45,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:40:45,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143527176] [2023-12-02 13:40:45,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:40:45,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:41:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:04,597 INFO L134 CoverageAnalysis]: Checked inductivity of 4256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4256 trivial. 0 not checked. [2023-12-02 13:41:04,597 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:41:04,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143527176] [2023-12-02 13:41:04,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143527176] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:41:04,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:41:04,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:41:04,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537901324] [2023-12-02 13:41:04,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:41:04,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:41:04,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:41:04,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:41:04,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:41:04,601 INFO L87 Difference]: Start difference. First operand 8635 states and 12788 transitions. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 2 states have call successors, (116), 2 states have call predecessors, (116), 1 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) [2023-12-02 13:41:06,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:08,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:10,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:11,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:13,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:41:18,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:41:20,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:41:22,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:24,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:26,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:28,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:31,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:33,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:36,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:38,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:41,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:43,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:45,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:41:47,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:41:49,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:41:51,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:41:53,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:55,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:57,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:41:57,788 INFO L93 Difference]: Finished difference Result 16115 states and 23907 transitions. [2023-12-02 13:41:57,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:41:57,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 2 states have call successors, (116), 2 states have call predecessors, (116), 1 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) Word has length 939 [2023-12-02 13:41:57,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:41:57,821 INFO L225 Difference]: With dead ends: 16115 [2023-12-02 13:41:57,821 INFO L226 Difference]: Without dead ends: 8661 [2023-12-02 13:41:57,844 INFO L412 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 [2023-12-02 13:41:57,845 INFO L413 NwaCegarLoop]: 5434 mSDtfsCounter, 23 mSDsluCounter, 5404 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 1 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 10838 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.6s IncrementalHoareTripleChecker+Time [2023-12-02 13:41:57,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 10838 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1120 Invalid, 19 Unknown, 0 Unchecked, 52.6s Time] [2023-12-02 13:41:57,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8661 states. [2023-12-02 13:41:58,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8661 to 8642. [2023-12-02 13:41:58,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8642 states, 4935 states have (on average 1.227355623100304) internal successors, (6057), 5132 states have internal predecessors, (6057), 3371 states have call successors, (3371), 336 states have call predecessors, (3371), 335 states have return successors, (3370), 3338 states have call predecessors, (3370), 3370 states have call successors, (3370) [2023-12-02 13:41:58,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8642 states to 8642 states and 12798 transitions. [2023-12-02 13:41:58,535 INFO L78 Accepts]: Start accepts. Automaton has 8642 states and 12798 transitions. Word has length 939 [2023-12-02 13:41:58,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:41:58,535 INFO L495 AbstractCegarLoop]: Abstraction has 8642 states and 12798 transitions. [2023-12-02 13:41:58,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 2 states have call successors, (116), 2 states have call predecessors, (116), 1 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) [2023-12-02 13:41:58,536 INFO L276 IsEmpty]: Start isEmpty. Operand 8642 states and 12798 transitions. [2023-12-02 13:41:58,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 941 [2023-12-02 13:41:58,558 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:41:58,559 INFO L195 NwaCegarLoop]: trace histogram [48, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 8, 7, 7, 7, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:41:58,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 13:41:58,559 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:41:58,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:41:58,559 INFO L85 PathProgramCache]: Analyzing trace with hash -51880378, now seen corresponding path program 1 times [2023-12-02 13:41:58,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:41:58,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72371668] [2023-12-02 13:41:58,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:58,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:42:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:42:17,644 INFO L134 CoverageAnalysis]: Checked inductivity of 4256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4256 trivial. 0 not checked. [2023-12-02 13:42:17,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:42:17,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72371668] [2023-12-02 13:42:17,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72371668] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:42:17,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:42:17,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:42:17,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370884833] [2023-12-02 13:42:17,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:42:17,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:42:17,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:42:17,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:42:17,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:42:17,647 INFO L87 Difference]: Start difference. First operand 8642 states and 12798 transitions. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 2 states have call successors, (116), 2 states have call predecessors, (116), 1 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) [2023-12-02 13:42:19,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:42:21,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:42:23,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:42:26,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:42:29,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:42:30,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:42:32,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:42:34,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:42:38,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:42:40,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:42:42,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:42:45,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:42:47,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:42:50,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:42:52,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:42:55,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []