./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2d0ef7-97b7-426a-8254-2db87343e702/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2d0ef7-97b7-426a-8254-2db87343e702/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_be2d0ef7-97b7-426a-8254-2db87343e702/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2d0ef7-97b7-426a-8254-2db87343e702/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2d0ef7-97b7-426a-8254-2db87343e702/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_be2d0ef7-97b7-426a-8254-2db87343e702/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 9e0fc576d8a50911d793e48f3029c6fea512a91c8b7de6b4c98b61b2fe16dd8a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:01:50,103 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:01:50,167 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2d0ef7-97b7-426a-8254-2db87343e702/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 15:01:50,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:01:50,173 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:01:50,199 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:01:50,199 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:01:50,200 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:01:50,201 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:01:50,201 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:01:50,202 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:01:50,202 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:01:50,202 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:01:50,203 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:01:50,203 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:01:50,204 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:01:50,204 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:01:50,205 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:01:50,205 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:01:50,206 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:01:50,217 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:01:50,218 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:01:50,219 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:01:50,220 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:01:50,220 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:01:50,221 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:01:50,221 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:01:50,222 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:01:50,222 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:01:50,222 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:01:50,223 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:01:50,223 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:01:50,223 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:01:50,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:01:50,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:01:50,224 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:01:50,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:01:50,225 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:01:50,225 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:01:50,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:01:50,225 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:01:50,226 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:01:50,226 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:01:50,226 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:01:50,226 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_be2d0ef7-97b7-426a-8254-2db87343e702/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2d0ef7-97b7-426a-8254-2db87343e702/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e0fc576d8a50911d793e48f3029c6fea512a91c8b7de6b4c98b61b2fe16dd8a [2023-12-02 15:01:50,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:01:50,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:01:50,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:01:50,473 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:01:50,473 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:01:50,474 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2d0ef7-97b7-426a-8254-2db87343e702/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2023-12-02 15:01:53,234 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:01:53,789 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:01:53,790 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2d0ef7-97b7-426a-8254-2db87343e702/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2023-12-02 15:01:53,840 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2d0ef7-97b7-426a-8254-2db87343e702/bin/utaipan-verify-nQ1chXbOIh/data/d9b428a46/daef1433d57f41c6a5da269a9d45ed58/FLAG2cc2dc513 [2023-12-02 15:01:53,854 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2d0ef7-97b7-426a-8254-2db87343e702/bin/utaipan-verify-nQ1chXbOIh/data/d9b428a46/daef1433d57f41c6a5da269a9d45ed58 [2023-12-02 15:01:53,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:01:53,858 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:01:53,859 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:01:53,860 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:01:53,865 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:01:53,865 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:01:53" (1/1) ... [2023-12-02 15:01:53,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39ca0745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:53, skipping insertion in model container [2023-12-02 15:01:53,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:01:53" (1/1) ... [2023-12-02 15:01:54,052 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:01:57,454 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_be2d0ef7-97b7-426a-8254-2db87343e702/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460294,460307] [2023-12-02 15:01:57,458 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_be2d0ef7-97b7-426a-8254-2db87343e702/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460439,460452] [2023-12-02 15:01:57,485 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:01:57,542 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:01:57,623 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 *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/de2fed6/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [6530-6531] [2023-12-02 15:01:57,625 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" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [6536-6538] [2023-12-02 15:01:57,669 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [6759-6760] [2023-12-02 15:01:57,671 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [6793-6794] [2023-12-02 15:01:57,891 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_be2d0ef7-97b7-426a-8254-2db87343e702/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460294,460307] [2023-12-02 15:01:57,891 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_be2d0ef7-97b7-426a-8254-2db87343e702/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460439,460452] [2023-12-02 15:01:57,897 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:01:58,089 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:01:58,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:58 WrapperNode [2023-12-02 15:01:58,090 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:01:58,091 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:01:58,091 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:01:58,091 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:01:58,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:58" (1/1) ... [2023-12-02 15:01:58,188 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:58" (1/1) ... [2023-12-02 15:01:58,463 INFO L138 Inliner]: procedures = 521, calls = 3911, calls flagged for inlining = 277, calls inlined = 262, statements flattened = 7601 [2023-12-02 15:01:58,464 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:01:58,464 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:01:58,464 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:01:58,465 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:01:58,474 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:58" (1/1) ... [2023-12-02 15:01:58,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:58" (1/1) ... [2023-12-02 15:01:58,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:58" (1/1) ... [2023-12-02 15:01:58,517 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:58" (1/1) ... [2023-12-02 15:01:58,696 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:58" (1/1) ... [2023-12-02 15:01:58,725 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:58" (1/1) ... [2023-12-02 15:01:58,779 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:58" (1/1) ... [2023-12-02 15:01:58,798 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:58" (1/1) ... [2023-12-02 15:01:58,910 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:01:58,911 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:01:58,911 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:01:58,911 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:01:58,912 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:58" (1/1) ... [2023-12-02 15:01:58,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:01:58,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2d0ef7-97b7-426a-8254-2db87343e702/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:01:58,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2d0ef7-97b7-426a-8254-2db87343e702/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:01:58,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2d0ef7-97b7-426a-8254-2db87343e702/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:01:58,978 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2023-12-02 15:01:58,978 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2023-12-02 15:01:58,978 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2023-12-02 15:01:58,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2023-12-02 15:01:58,979 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2023-12-02 15:01:58,979 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2023-12-02 15:01:58,979 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2023-12-02 15:01:58,979 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2023-12-02 15:01:58,979 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-12-02 15:01:58,979 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-12-02 15:01:58,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-12-02 15:01:58,979 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-12-02 15:01:58,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 15:01:58,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 15:01:58,980 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2023-12-02 15:01:58,980 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2023-12-02 15:01:58,980 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2023-12-02 15:01:58,980 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2023-12-02 15:01:58,980 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-12-02 15:01:58,980 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-12-02 15:01:58,980 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-12-02 15:01:58,981 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-12-02 15:01:58,981 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-12-02 15:01:58,981 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-12-02 15:01:58,981 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2023-12-02 15:01:58,981 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2023-12-02 15:01:58,981 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2023-12-02 15:01:58,981 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2023-12-02 15:01:58,981 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2023-12-02 15:01:58,981 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2023-12-02 15:01:58,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-12-02 15:01:58,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-12-02 15:01:58,982 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2023-12-02 15:01:58,982 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2023-12-02 15:01:58,982 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2023-12-02 15:01:58,982 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2023-12-02 15:01:58,982 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2023-12-02 15:01:58,982 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2023-12-02 15:01:58,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-12-02 15:01:58,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-12-02 15:01:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-12-02 15:01:58,983 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-12-02 15:01:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rtl8180_driver_exit_14_2 [2023-12-02 15:01:58,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rtl8180_driver_exit_14_2 [2023-12-02 15:01:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 15:01:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2023-12-02 15:01:58,983 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2023-12-02 15:01:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2023-12-02 15:01:58,983 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2023-12-02 15:01:58,984 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2023-12-02 15:01:58,984 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2023-12-02 15:01:58,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 15:01:58,984 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2023-12-02 15:01:58,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2023-12-02 15:01:58,984 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_conf_erp [2023-12-02 15:01:58,984 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_conf_erp [2023-12-02 15:01:58,984 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-12-02 15:01:58,984 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-12-02 15:01:58,985 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-12-02 15:01:58,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-12-02 15:01:58,985 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2023-12-02 15:01:58,985 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2023-12-02 15:01:58,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 15:01:58,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-12-02 15:01:58,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-12-02 15:01:58,985 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2023-12-02 15:01:58,985 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2023-12-02 15:01:58,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 15:01:58,986 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-12-02 15:01:58,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-12-02 15:01:58,986 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2023-12-02 15:01:58,986 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2023-12-02 15:01:58,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 15:01:58,986 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 15:01:58,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-12-02 15:01:58,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-12-02 15:01:58,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-12-02 15:01:58,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-12-02 15:01:58,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-12-02 15:01:58,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-12-02 15:01:58,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-12-02 15:01:58,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-12-02 15:01:58,987 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2023-12-02 15:01:58,987 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2023-12-02 15:01:58,987 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2023-12-02 15:01:58,987 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2023-12-02 15:01:58,987 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2023-12-02 15:01:58,988 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2023-12-02 15:01:58,988 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-12-02 15:01:58,988 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-12-02 15:01:58,988 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-12-02 15:01:58,988 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-12-02 15:01:58,988 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2023-12-02 15:01:58,988 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2023-12-02 15:01:58,988 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2023-12-02 15:01:58,988 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2023-12-02 15:01:58,988 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2023-12-02 15:01:58,989 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2023-12-02 15:01:58,989 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2023-12-02 15:01:58,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2023-12-02 15:01:58,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 15:01:58,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-12-02 15:01:58,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-12-02 15:01:58,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-12-02 15:01:58,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-12-02 15:01:58,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:01:58,989 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2023-12-02 15:01:58,990 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2023-12-02 15:01:58,990 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2023-12-02 15:01:58,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2023-12-02 15:01:58,990 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2023-12-02 15:01:58,990 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2023-12-02 15:01:58,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-12-02 15:01:58,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-12-02 15:01:58,990 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-12-02 15:01:58,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-12-02 15:01:58,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 15:01:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 15:01:58,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 15:01:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-12-02 15:01:58,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-12-02 15:01:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-12-02 15:01:58,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-12-02 15:01:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2023-12-02 15:01:58,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2023-12-02 15:01:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-12-02 15:01:58,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-12-02 15:01:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_start [2023-12-02 15:01:58,992 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_start [2023-12-02 15:01:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2023-12-02 15:01:58,992 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2023-12-02 15:01:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-12-02 15:01:58,992 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-12-02 15:01:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_resume [2023-12-02 15:01:58,992 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_resume [2023-12-02 15:01:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2023-12-02 15:01:58,993 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2023-12-02 15:01:58,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rtl8180_priv [2023-12-02 15:01:58,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rtl8180_priv [2023-12-02 15:01:58,993 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2023-12-02 15:01:58,993 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2023-12-02 15:01:58,993 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2023-12-02 15:01:58,993 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2023-12-02 15:01:58,993 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2023-12-02 15:01:58,993 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2023-12-02 15:01:58,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:01:58,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:01:58,994 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-12-02 15:01:58,994 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-12-02 15:01:58,994 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2023-12-02 15:01:58,994 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2023-12-02 15:01:58,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 15:01:58,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 15:01:58,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 15:01:58,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 15:01:58,994 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2023-12-02 15:01:58,995 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2023-12-02 15:01:58,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ieee80211_free_hw [2023-12-02 15:01:58,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ieee80211_free_hw [2023-12-02 15:01:58,995 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2023-12-02 15:01:58,995 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2023-12-02 15:01:58,995 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2023-12-02 15:01:58,995 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2023-12-02 15:01:58,995 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2023-12-02 15:01:58,995 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2023-12-02 15:01:58,995 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-12-02 15:01:58,995 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-12-02 15:01:58,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-12-02 15:01:58,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-12-02 15:01:58,996 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-12-02 15:01:58,996 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-12-02 15:01:58,996 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2023-12-02 15:01:58,996 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2023-12-02 15:01:58,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 15:01:58,996 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 15:01:58,996 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-12-02 15:01:58,996 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-12-02 15:01:58,996 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2023-12-02 15:01:58,997 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2023-12-02 15:01:58,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 15:01:58,997 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2023-12-02 15:01:58,997 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2023-12-02 15:01:58,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 15:01:58,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 15:01:58,997 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-12-02 15:01:58,997 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-12-02 15:01:58,997 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-12-02 15:01:58,997 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-12-02 15:01:58,997 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-12-02 15:01:58,998 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-12-02 15:01:58,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-12-02 15:01:58,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-12-02 15:01:58,998 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2023-12-02 15:01:58,998 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2023-12-02 15:01:58,998 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2023-12-02 15:01:58,998 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2023-12-02 15:01:58,998 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2023-12-02 15:01:58,998 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2023-12-02 15:01:58,998 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2023-12-02 15:01:58,998 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2023-12-02 15:01:58,999 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2023-12-02 15:01:58,999 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2023-12-02 15:01:58,999 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2023-12-02 15:01:58,999 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2023-12-02 15:01:58,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 15:01:58,999 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2023-12-02 15:01:58,999 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2023-12-02 15:01:58,999 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-12-02 15:01:58,999 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-12-02 15:01:58,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-12-02 15:01:59,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-12-02 15:01:59,000 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2023-12-02 15:01:59,000 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2023-12-02 15:01:59,000 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2023-12-02 15:01:59,000 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2023-12-02 15:01:59,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_84 [2023-12-02 15:01:59,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_84 [2023-12-02 15:01:59,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rtl8180_priv [2023-12-02 15:01:59,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rtl8180_priv [2023-12-02 15:01:59,000 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-12-02 15:01:59,000 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-12-02 15:01:59,001 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2023-12-02 15:01:59,001 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2023-12-02 15:01:59,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-12-02 15:01:59,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-12-02 15:01:59,001 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2023-12-02 15:01:59,001 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2023-12-02 15:01:59,001 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-12-02 15:01:59,001 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-12-02 15:01:59,001 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2023-12-02 15:01:59,001 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2023-12-02 15:01:59,002 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2023-12-02 15:01:59,002 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2023-12-02 15:01:59,002 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2023-12-02 15:01:59,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:01:59,002 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-12-02 15:01:59,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-12-02 15:01:59,002 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2023-12-02 15:01:59,002 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2023-12-02 15:01:59,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-12-02 15:01:59,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-12-02 15:01:59,002 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2023-12-02 15:01:59,003 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2023-12-02 15:01:59,003 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2023-12-02 15:01:59,003 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2023-12-02 15:01:59,003 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2023-12-02 15:01:59,003 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2023-12-02 15:01:59,929 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:01:59,932 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:02:00,224 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 15:02:09,216 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-12-02 15:02:09,415 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:02:13,287 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:02:13,288 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 15:02:13,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:02:13 BoogieIcfgContainer [2023-12-02 15:02:13,291 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:02:13,293 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:02:13,293 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:02:13,297 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:02:13,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:01:53" (1/3) ... [2023-12-02 15:02:13,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683e0ec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:02:13, skipping insertion in model container [2023-12-02 15:02:13,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:58" (2/3) ... [2023-12-02 15:02:13,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683e0ec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:02:13, skipping insertion in model container [2023-12-02 15:02:13,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:02:13" (3/3) ... [2023-12-02 15:02:13,299 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2023-12-02 15:02:13,319 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:02:13,319 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:02:13,422 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:02:13,429 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;@2ef36362, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:02:13,429 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:02:13,444 INFO L276 IsEmpty]: Start isEmpty. Operand has 2561 states, 1218 states have (on average 1.2463054187192117) internal successors, (1518), 1252 states have internal predecessors, (1518), 1228 states have call successors, (1228), 115 states have call predecessors, (1228), 114 states have return successors, (1220), 1203 states have call predecessors, (1220), 1220 states have call successors, (1220) [2023-12-02 15:02:13,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2023-12-02 15:02:13,497 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:02:13,498 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:02:13,499 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:02:13,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:02:13,504 INFO L85 PathProgramCache]: Analyzing trace with hash 2044313075, now seen corresponding path program 1 times [2023-12-02 15:02:13,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:02:13,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256140390] [2023-12-02 15:02:13,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:02:13,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:02:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:02:14,955 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2023-12-02 15:02:14,955 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:02:14,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256140390] [2023-12-02 15:02:14,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256140390] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:02:14,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:02:14,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:02:14,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539832162] [2023-12-02 15:02:14,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:02:14,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:02:14,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:02:14,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:02:14,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:02:14,993 INFO L87 Difference]: Start difference. First operand has 2561 states, 1218 states have (on average 1.2463054187192117) internal successors, (1518), 1252 states have internal predecessors, (1518), 1228 states have call successors, (1228), 115 states have call predecessors, (1228), 114 states have return successors, (1220), 1203 states have call predecessors, (1220), 1220 states have call successors, (1220) Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2023-12-02 15:02:17,210 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 15:02:21,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 15:02:25,081 WARN L539 Checker$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 15:02:27,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:02:29,986 WARN L539 Checker$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 15:02:31,992 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 15:02:32,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:02:32,420 INFO L93 Difference]: Finished difference Result 7457 states and 11602 transitions. [2023-12-02 15:02:32,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:02:32,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 412 [2023-12-02 15:02:32,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:02:32,493 INFO L225 Difference]: With dead ends: 7457 [2023-12-02 15:02:32,494 INFO L226 Difference]: Without dead ends: 4878 [2023-12-02 15:02:32,529 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 15:02:32,532 INFO L413 NwaCegarLoop]: 3552 mSDtfsCounter, 3739 mSDsluCounter, 3490 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 15 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3739 SdHoareTripleChecker+Valid, 7042 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:02:32,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3739 Valid, 7042 Invalid, 928 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 907 Invalid, 6 Unknown, 0 Unchecked, 17.0s Time] [2023-12-02 15:02:32,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4878 states. [2023-12-02 15:02:33,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4878 to 4873. [2023-12-02 15:02:33,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4873 states, 2315 states have (on average 1.2397408207343412) internal successors, (2870), 2377 states have internal predecessors, (2870), 2333 states have call successors, (2333), 224 states have call predecessors, (2333), 224 states have return successors, (2352), 2299 states have call predecessors, (2352), 2333 states have call successors, (2352) [2023-12-02 15:02:33,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4873 states to 4873 states and 7555 transitions. [2023-12-02 15:02:33,136 INFO L78 Accepts]: Start accepts. Automaton has 4873 states and 7555 transitions. Word has length 412 [2023-12-02 15:02:33,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:02:33,139 INFO L495 AbstractCegarLoop]: Abstraction has 4873 states and 7555 transitions. [2023-12-02 15:02:33,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2023-12-02 15:02:33,140 INFO L276 IsEmpty]: Start isEmpty. Operand 4873 states and 7555 transitions. [2023-12-02 15:02:33,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2023-12-02 15:02:33,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:02:33,152 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:02:33,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:02:33,153 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:02:33,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:02:33,153 INFO L85 PathProgramCache]: Analyzing trace with hash -2020834691, now seen corresponding path program 1 times [2023-12-02 15:02:33,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:02:33,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911610701] [2023-12-02 15:02:33,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:02:33,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:02:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:02:33,776 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2023-12-02 15:02:33,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:02:33,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911610701] [2023-12-02 15:02:33,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911610701] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:02:33,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:02:33,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:02:33,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40349561] [2023-12-02 15:02:33,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:02:33,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:02:33,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:02:33,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:02:33,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:02:33,781 INFO L87 Difference]: Start difference. First operand 4873 states and 7555 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2023-12-02 15:02:35,989 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 15:02:40,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 15:02:41,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:02:44,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:02:47,753 WARN L539 Checker$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 15:02:49,764 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 15:02:50,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:02:50,432 INFO L93 Difference]: Finished difference Result 14343 states and 22269 transitions. [2023-12-02 15:02:50,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:02:50,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 413 [2023-12-02 15:02:50,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:02:50,562 INFO L225 Difference]: With dead ends: 14343 [2023-12-02 15:02:50,562 INFO L226 Difference]: Without dead ends: 9543 [2023-12-02 15:02:50,613 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 15:02:50,615 INFO L413 NwaCegarLoop]: 3478 mSDtfsCounter, 3658 mSDsluCounter, 3417 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 15 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3658 SdHoareTripleChecker+Valid, 6895 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:02:50,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3658 Valid, 6895 Invalid, 922 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 902 Invalid, 5 Unknown, 0 Unchecked, 16.0s Time] [2023-12-02 15:02:50,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9543 states. [2023-12-02 15:02:51,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9543 to 9535. [2023-12-02 15:02:51,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9535 states, 4514 states have (on average 1.2348249889233496) internal successors, (5574), 4638 states have internal predecessors, (5574), 4572 states have call successors, (4572), 448 states have call predecessors, (4572), 448 states have return successors, (4644), 4504 states have call predecessors, (4644), 4572 states have call successors, (4644) [2023-12-02 15:02:51,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9535 states to 9535 states and 14790 transitions. [2023-12-02 15:02:51,645 INFO L78 Accepts]: Start accepts. Automaton has 9535 states and 14790 transitions. Word has length 413 [2023-12-02 15:02:51,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:02:51,647 INFO L495 AbstractCegarLoop]: Abstraction has 9535 states and 14790 transitions. [2023-12-02 15:02:51,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2023-12-02 15:02:51,647 INFO L276 IsEmpty]: Start isEmpty. Operand 9535 states and 14790 transitions. [2023-12-02 15:02:51,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2023-12-02 15:02:51,661 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:02:51,661 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:02:51,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 15:02:51,662 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:02:51,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:02:51,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1452368571, now seen corresponding path program 1 times [2023-12-02 15:02:51,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:02:51,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393685442] [2023-12-02 15:02:51,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:02:51,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:02:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:02:52,408 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2023-12-02 15:02:52,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:02:52,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393685442] [2023-12-02 15:02:52,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393685442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:02:52,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:02:52,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:02:52,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945189698] [2023-12-02 15:02:52,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:02:52,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:02:52,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:02:52,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:02:52,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:02:52,412 INFO L87 Difference]: Start difference. First operand 9535 states and 14790 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2023-12-02 15:02:54,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:02:56,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:02:58,914 WARN L539 Checker$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 15:03:00,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:03:04,482 WARN L539 Checker$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 15:03:06,488 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 15:03:07,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:03:07,260 INFO L93 Difference]: Finished difference Result 28199 states and 43788 transitions. [2023-12-02 15:03:07,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:03:07,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 414 [2023-12-02 15:03:07,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:03:07,428 INFO L225 Difference]: With dead ends: 28199 [2023-12-02 15:03:07,429 INFO L226 Difference]: Without dead ends: 18737 [2023-12-02 15:03:07,511 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 15:03:07,512 INFO L413 NwaCegarLoop]: 3477 mSDtfsCounter, 3661 mSDsluCounter, 3417 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 15 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3661 SdHoareTripleChecker+Valid, 6894 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:03:07,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3661 Valid, 6894 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 903 Invalid, 4 Unknown, 0 Unchecked, 14.2s Time] [2023-12-02 15:03:07,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18737 states. [2023-12-02 15:03:08,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18737 to 18715. [2023-12-02 15:03:08,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18715 states, 8826 states have (on average 1.2288692499433491) internal successors, (10846), 9074 states have internal predecessors, (10846), 8992 states have call successors, (8992), 896 states have call predecessors, (8992), 896 states have return successors, (9196), 8856 states have call predecessors, (9196), 8992 states have call successors, (9196) [2023-12-02 15:03:09,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18715 states to 18715 states and 29034 transitions. [2023-12-02 15:03:09,061 INFO L78 Accepts]: Start accepts. Automaton has 18715 states and 29034 transitions. Word has length 414 [2023-12-02 15:03:09,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:03:09,061 INFO L495 AbstractCegarLoop]: Abstraction has 18715 states and 29034 transitions. [2023-12-02 15:03:09,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2023-12-02 15:03:09,062 INFO L276 IsEmpty]: Start isEmpty. Operand 18715 states and 29034 transitions. [2023-12-02 15:03:09,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2023-12-02 15:03:09,070 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:03:09,071 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:03:09,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 15:03:09,071 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:03:09,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:03:09,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1470971796, now seen corresponding path program 1 times [2023-12-02 15:03:09,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:03:09,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24240050] [2023-12-02 15:03:09,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:03:09,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:03:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:03:09,527 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2023-12-02 15:03:09,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:03:09,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24240050] [2023-12-02 15:03:09,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24240050] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:03:09,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:03:09,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:03:09,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934622151] [2023-12-02 15:03:09,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:03:09,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:03:09,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:03:09,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:03:09,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:03:09,529 INFO L87 Difference]: Start difference. First operand 18715 states and 29034 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2023-12-02 15:03:13,059 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 15:03:15,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:03:16,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:03:18,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:03:19,974 WARN L539 Checker$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 15:03:24,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 15:03:26,417 WARN L539 Checker$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 15:03:27,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:03:27,873 INFO L93 Difference]: Finished difference Result 55351 states and 85937 transitions. [2023-12-02 15:03:27,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:03:27,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 413 [2023-12-02 15:03:27,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:03:28,067 INFO L225 Difference]: With dead ends: 55351 [2023-12-02 15:03:28,067 INFO L226 Difference]: Without dead ends: 36709 [2023-12-02 15:03:28,159 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 15:03:28,160 INFO L413 NwaCegarLoop]: 3490 mSDtfsCounter, 3663 mSDsluCounter, 3417 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 15 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3663 SdHoareTripleChecker+Valid, 6907 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2023-12-02 15:03:28,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3663 Valid, 6907 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 903 Invalid, 5 Unknown, 0 Unchecked, 16.9s Time] [2023-12-02 15:03:28,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36709 states. [2023-12-02 15:03:30,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36709 to 36675. [2023-12-02 15:03:30,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36675 states, 17229 states have (on average 1.2213709443380347) internal successors, (21043), 17720 states have internal predecessors, (21043), 17667 states have call successors, (17667), 1779 states have call predecessors, (17667), 1778 states have return successors, (18165), 17399 states have call predecessors, (18165), 17667 states have call successors, (18165) [2023-12-02 15:03:31,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36675 states to 36675 states and 56875 transitions. [2023-12-02 15:03:31,053 INFO L78 Accepts]: Start accepts. Automaton has 36675 states and 56875 transitions. Word has length 413 [2023-12-02 15:03:31,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:03:31,054 INFO L495 AbstractCegarLoop]: Abstraction has 36675 states and 56875 transitions. [2023-12-02 15:03:31,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2023-12-02 15:03:31,054 INFO L276 IsEmpty]: Start isEmpty. Operand 36675 states and 56875 transitions. [2023-12-02 15:03:31,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2023-12-02 15:03:31,061 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:03:31,061 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:03:31,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 15:03:31,061 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:03:31,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:03:31,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1286940843, now seen corresponding path program 1 times [2023-12-02 15:03:31,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:03:31,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677228036] [2023-12-02 15:03:31,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:03:31,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:03:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:03:31,753 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2023-12-02 15:03:31,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:03:31,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677228036] [2023-12-02 15:03:31,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677228036] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:03:31,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:03:31,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:03:31,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339107640] [2023-12-02 15:03:31,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:03:31,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:03:31,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:03:31,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:03:31,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:03:31,756 INFO L87 Difference]: Start difference. First operand 36675 states and 56875 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2023-12-02 15:03:34,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:03:37,163 WARN L539 Checker$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 15:03:39,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 15:03:41,116 WARN L539 Checker$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 15:03:42,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:03:45,790 WARN L539 Checker$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 15:03:46,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:03:49,858 WARN L539 Checker$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 15:03:52,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:03:52,457 INFO L93 Difference]: Finished difference Result 104571 states and 162169 transitions. [2023-12-02 15:03:52,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:03:52,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 414 [2023-12-02 15:03:52,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:03:52,792 INFO L225 Difference]: With dead ends: 104571 [2023-12-02 15:03:52,792 INFO L226 Difference]: Without dead ends: 67969 [2023-12-02 15:03:52,929 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 15:03:52,929 INFO L413 NwaCegarLoop]: 6112 mSDtfsCounter, 3365 mSDsluCounter, 3434 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 15 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3365 SdHoareTripleChecker+Valid, 9546 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2023-12-02 15:03:52,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3365 Valid, 9546 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1150 Invalid, 5 Unknown, 0 Unchecked, 17.9s Time] [2023-12-02 15:03:52,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67969 states. [2023-12-02 15:03:57,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67969 to 67951. [2023-12-02 15:03:57,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67951 states, 31628 states have (on average 1.2144618692297964) internal successors, (38411), 32592 states have internal predecessors, (38411), 32933 states have call successors, (32933), 3385 states have call predecessors, (32933), 3389 states have return successors, (33802), 32398 states have call predecessors, (33802), 32933 states have call successors, (33802) [2023-12-02 15:03:58,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67951 states to 67951 states and 105146 transitions. [2023-12-02 15:03:58,167 INFO L78 Accepts]: Start accepts. Automaton has 67951 states and 105146 transitions. Word has length 414 [2023-12-02 15:03:58,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:03:58,168 INFO L495 AbstractCegarLoop]: Abstraction has 67951 states and 105146 transitions. [2023-12-02 15:03:58,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2023-12-02 15:03:58,168 INFO L276 IsEmpty]: Start isEmpty. Operand 67951 states and 105146 transitions. [2023-12-02 15:03:58,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2023-12-02 15:03:58,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:03:58,174 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 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] [2023-12-02 15:03:58,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 15:03:58,174 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:03:58,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:03:58,175 INFO L85 PathProgramCache]: Analyzing trace with hash -810203976, now seen corresponding path program 1 times [2023-12-02 15:03:58,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:03:58,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310439183] [2023-12-02 15:03:58,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:03:58,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:03:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:03:58,994 INFO L134 CoverageAnalysis]: Checked inductivity of 5114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5114 trivial. 0 not checked. [2023-12-02 15:03:58,994 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:03:58,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310439183] [2023-12-02 15:03:58,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310439183] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:03:58,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:03:58,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:03:58,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034565594] [2023-12-02 15:03:58,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:03:58,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:03:58,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:03:58,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:03:58,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:03:58,997 INFO L87 Difference]: Start difference. First operand 67951 states and 105146 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2023-12-02 15:04:01,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 15:04:04,678 WARN L539 Checker$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 15:04:07,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 15:04:10,492 WARN L539 Checker$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 15:04:11,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:04:13,242 WARN L539 Checker$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 15:04:18,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:04:18,709 INFO L93 Difference]: Finished difference Result 200150 states and 311405 transitions. [2023-12-02 15:04:18,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:04:18,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 431 [2023-12-02 15:04:18,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:04:19,458 INFO L225 Difference]: With dead ends: 200150 [2023-12-02 15:04:19,459 INFO L226 Difference]: Without dead ends: 132272 [2023-12-02 15:04:19,921 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 15:04:19,922 INFO L413 NwaCegarLoop]: 3508 mSDtfsCounter, 3629 mSDsluCounter, 3446 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3629 SdHoareTripleChecker+Valid, 6954 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2023-12-02 15:04:19,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3629 Valid, 6954 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 855 Invalid, 3 Unknown, 0 Unchecked, 13.7s Time] [2023-12-02 15:04:20,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132272 states. [2023-12-02 15:04:28,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132272 to 132206. [2023-12-02 15:04:29,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132206 states, 60997 states have (on average 1.2107972523238848) internal successors, (73855), 62845 states have internal predecessors, (73855), 64597 states have call successors, (64597), 6635 states have call predecessors, (64597), 6611 states have return successors, (67755), 63447 states have call predecessors, (67755), 64597 states have call successors, (67755) [2023-12-02 15:04:30,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132206 states to 132206 states and 206207 transitions. [2023-12-02 15:04:30,627 INFO L78 Accepts]: Start accepts. Automaton has 132206 states and 206207 transitions. Word has length 431 [2023-12-02 15:04:30,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:04:30,628 INFO L495 AbstractCegarLoop]: Abstraction has 132206 states and 206207 transitions. [2023-12-02 15:04:30,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2023-12-02 15:04:30,629 INFO L276 IsEmpty]: Start isEmpty. Operand 132206 states and 206207 transitions. [2023-12-02 15:04:30,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2023-12-02 15:04:30,635 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:04:30,636 INFO L195 NwaCegarLoop]: trace histogram [40, 36, 36, 36, 36, 36, 36, 4, 4, 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] [2023-12-02 15:04:30,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 15:04:30,636 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:04:30,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:04:30,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1196298272, now seen corresponding path program 1 times [2023-12-02 15:04:30,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:04:30,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452930160] [2023-12-02 15:04:30,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:04:30,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:04:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:04:31,328 INFO L134 CoverageAnalysis]: Checked inductivity of 5361 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5358 trivial. 0 not checked. [2023-12-02 15:04:31,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:04:31,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452930160] [2023-12-02 15:04:31,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452930160] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:04:31,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:04:31,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:04:31,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876034249] [2023-12-02 15:04:31,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:04:31,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:04:31,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:04:31,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:04:31,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:04:31,331 INFO L87 Difference]: Start difference. First operand 132206 states and 206207 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2023-12-02 15:04:33,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 15:04:35,488 WARN L539 Checker$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 15:04:38,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:04:41,884 WARN L539 Checker$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 15:04:45,066 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 15:04:54,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:04:54,311 INFO L93 Difference]: Finished difference Result 325032 states and 507208 transitions. [2023-12-02 15:04:54,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:04:54,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 461 [2023-12-02 15:04:54,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:04:55,588 INFO L225 Difference]: With dead ends: 325032 [2023-12-02 15:04:55,588 INFO L226 Difference]: Without dead ends: 192899 [2023-12-02 15:04:56,164 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 15:04:56,165 INFO L413 NwaCegarLoop]: 6469 mSDtfsCounter, 3366 mSDsluCounter, 3426 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 15 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3366 SdHoareTripleChecker+Valid, 9895 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:04:56,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3366 Valid, 9895 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1226 Invalid, 4 Unknown, 0 Unchecked, 13.2s Time] [2023-12-02 15:04:56,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192899 states. [2023-12-02 15:05:10,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192899 to 192865. [2023-12-02 15:05:10,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192865 states, 88617 states have (on average 1.2079059322703318) internal successors, (107041), 91371 states have internal predecessors, (107041), 94510 states have call successors, (94510), 9767 states have call predecessors, (94510), 9737 states have return successors, (99046), 92786 states have call predecessors, (99046), 94510 states have call successors, (99046) [2023-12-02 15:05:12,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192865 states to 192865 states and 300597 transitions. [2023-12-02 15:05:12,822 INFO L78 Accepts]: Start accepts. Automaton has 192865 states and 300597 transitions. Word has length 461 [2023-12-02 15:05:12,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:05:12,824 INFO L495 AbstractCegarLoop]: Abstraction has 192865 states and 300597 transitions. [2023-12-02 15:05:12,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2023-12-02 15:05:12,824 INFO L276 IsEmpty]: Start isEmpty. Operand 192865 states and 300597 transitions. [2023-12-02 15:05:12,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2023-12-02 15:05:12,835 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:05:12,835 INFO L195 NwaCegarLoop]: trace histogram [42, 36, 36, 36, 36, 36, 36, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:05:12,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 15:05:12,836 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:05:12,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:05:12,836 INFO L85 PathProgramCache]: Analyzing trace with hash -784380772, now seen corresponding path program 1 times [2023-12-02 15:05:12,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:05:12,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499216350] [2023-12-02 15:05:12,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:12,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:05:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:05:19,453 INFO L134 CoverageAnalysis]: Checked inductivity of 5616 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5616 trivial. 0 not checked. [2023-12-02 15:05:19,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:05:19,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499216350] [2023-12-02 15:05:19,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499216350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:05:19,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:05:19,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 15:05:19,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485803939] [2023-12-02 15:05:19,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:05:19,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:05:19,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:05:19,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:05:19,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:05:19,456 INFO L87 Difference]: Start difference. First operand 192865 states and 300597 transitions. Second operand has 6 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (56), 3 states have call predecessors, (56), 2 states have call successors, (56) [2023-12-02 15:05:24,635 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 15:05:26,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 15:05:28,657 WARN L539 Checker$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 15:05:30,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 15:05:32,670 WARN L539 Checker$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 15:05:33,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:05:36,561 WARN L539 Checker$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 15:05:40,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:05:41,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:05:45,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:05:47,438 WARN L539 Checker$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 15:05:51,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:05:53,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:06:24,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:06:24,268 INFO L93 Difference]: Finished difference Result 379543 states and 594176 transitions. [2023-12-02 15:06:24,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 15:06:24,269 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (56), 3 states have call predecessors, (56), 2 states have call successors, (56) Word has length 526 [2023-12-02 15:06:24,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:06:27,087 INFO L225 Difference]: With dead ends: 379543 [2023-12-02 15:06:27,087 INFO L226 Difference]: Without dead ends: 379541 [2023-12-02 15:06:27,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-02 15:06:27,384 INFO L413 NwaCegarLoop]: 3462 mSDtfsCounter, 3579 mSDsluCounter, 11402 mSDsCounter, 0 mSdLazyCounter, 4448 mSolverCounterSat, 3 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3580 SdHoareTripleChecker+Valid, 14864 SdHoareTripleChecker+Invalid, 4459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4448 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.4s IncrementalHoareTripleChecker+Time [2023-12-02 15:06:27,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3580 Valid, 14864 Invalid, 4459 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 4448 Invalid, 8 Unknown, 0 Unchecked, 35.4s Time] [2023-12-02 15:06:27,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379541 states. [2023-12-02 15:07:08,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379541 to 379447. [2023-12-02 15:07:09,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379447 states, 173457 states have (on average 1.2067832373441256) internal successors, (209325), 178913 states have internal predecessors, (209325), 186914 states have call successors, (186914), 19229 states have call predecessors, (186914), 19075 states have return successors, (197750), 183232 states have call predecessors, (197750), 186914 states have call successors, (197750) [2023-12-02 15:07:13,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379447 states to 379447 states and 593989 transitions. [2023-12-02 15:07:13,604 INFO L78 Accepts]: Start accepts. Automaton has 379447 states and 593989 transitions. Word has length 526 [2023-12-02 15:07:13,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:07:13,605 INFO L495 AbstractCegarLoop]: Abstraction has 379447 states and 593989 transitions. [2023-12-02 15:07:13,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (56), 3 states have call predecessors, (56), 2 states have call successors, (56) [2023-12-02 15:07:13,606 INFO L276 IsEmpty]: Start isEmpty. Operand 379447 states and 593989 transitions. [2023-12-02 15:07:13,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2023-12-02 15:07:13,642 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:07:13,642 INFO L195 NwaCegarLoop]: trace histogram [44, 37, 37, 37, 37, 37, 37, 10, 10, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:07:13,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 15:07:13,643 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:07:13,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:07:13,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1445118379, now seen corresponding path program 1 times [2023-12-02 15:07:13,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:07:13,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878751672] [2023-12-02 15:07:13,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:13,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:07:13,899 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 15:07:13,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1313326990] [2023-12-02 15:07:13,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:07:13,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:07:13,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2d0ef7-97b7-426a-8254-2db87343e702/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:07:13,903 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2d0ef7-97b7-426a-8254-2db87343e702/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:07:13,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2d0ef7-97b7-426a-8254-2db87343e702/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 15:07:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:07:15,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 7217 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 15:07:15,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:07:16,088 INFO L134 CoverageAnalysis]: Checked inductivity of 6131 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 5996 trivial. 0 not checked. [2023-12-02 15:07:16,088 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:07:16,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:07:16,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878751672] [2023-12-02 15:07:16,089 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 15:07:16,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313326990] [2023-12-02 15:07:16,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313326990] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:07:16,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:07:16,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:07:16,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254531648] [2023-12-02 15:07:16,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:07:16,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:07:16,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:07:16,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:07:16,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:07:16,092 INFO L87 Difference]: Start difference. First operand 379447 states and 593989 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 3 states have call successors, (89), 3 states have call predecessors, (89), 3 states have return successors, (85), 3 states have call predecessors, (85), 3 states have call successors, (85) [2023-12-02 15:07:20,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 15:07:22,389 WARN L539 Checker$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 15:07:26,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:07:32,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []