./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f30e34-80e8-4c91-b206-e0b4507ae070/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f30e34-80e8-4c91-b206-e0b4507ae070/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f30e34-80e8-4c91-b206-e0b4507ae070/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f30e34-80e8-4c91-b206-e0b4507ae070/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f30e34-80e8-4c91-b206-e0b4507ae070/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f30e34-80e8-4c91-b206-e0b4507ae070/bin/utaipan-verify-SwPr7d2a91 --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 4230dcd825d3a8c4f2993182656471f5db1d08c7b5deb32f72a092968196ad9c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:51:28,465 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:51:28,585 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f30e34-80e8-4c91-b206-e0b4507ae070/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:51:28,596 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:51:28,597 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:51:28,637 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:51:28,638 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:51:28,638 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:51:28,640 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:51:28,645 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:51:28,645 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:51:28,646 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:51:28,646 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:51:28,648 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:51:28,649 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:51:28,649 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:51:28,650 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:51:28,650 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:51:28,651 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:51:28,651 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:51:28,652 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:51:28,652 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:51:28,654 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:51:28,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:51:28,655 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:51:28,655 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:51:28,656 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:51:28,656 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:51:28,657 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:51:28,657 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:51:28,658 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:51:28,659 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:51:28,659 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:51:28,659 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:51:28,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:51:28,660 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:51:28,661 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:51:28,661 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:51:28,661 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:51:28,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:51:28,662 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:51:28,662 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:51:28,663 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:51:28,663 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:51:28,664 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_41f30e34-80e8-4c91-b206-e0b4507ae070/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f30e34-80e8-4c91-b206-e0b4507ae070/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4230dcd825d3a8c4f2993182656471f5db1d08c7b5deb32f72a092968196ad9c [2023-11-24 23:51:28,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:51:29,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:51:29,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:51:29,040 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:51:29,040 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:51:29,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f30e34-80e8-4c91-b206-e0b4507ae070/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2023-11-24 23:51:32,161 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:51:32,808 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:51:32,809 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f30e34-80e8-4c91-b206-e0b4507ae070/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2023-11-24 23:51:32,845 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f30e34-80e8-4c91-b206-e0b4507ae070/bin/utaipan-verify-SwPr7d2a91/data/c68257af8/a88479a3593d499eaefecca67863b660/FLAG009fa6665 [2023-11-24 23:51:32,860 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f30e34-80e8-4c91-b206-e0b4507ae070/bin/utaipan-verify-SwPr7d2a91/data/c68257af8/a88479a3593d499eaefecca67863b660 [2023-11-24 23:51:32,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:51:32,864 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:51:32,866 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:51:32,866 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:51:32,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:51:32,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:51:32" (1/1) ... [2023-11-24 23:51:32,873 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79ffe7fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:32, skipping insertion in model container [2023-11-24 23:51:32,874 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:51:32" (1/1) ... [2023-11-24 23:51:33,036 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:51:35,199 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_41f30e34-80e8-4c91-b206-e0b4507ae070/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i[256140,256153] [2023-11-24 23:51:35,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:51:35,258 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:51:35,378 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5350] [2023-11-24 23:51:35,380 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5357] [2023-11-24 23:51:35,381 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5364] [2023-11-24 23:51:35,383 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/7cdfae59d3ac602223400f61d8829e28/klever-core-work-dir/076166e/linux-drivers-clk1/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5404-5405] [2023-11-24 23:51:35,384 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"); [5410-5412] [2023-11-24 23:51:35,643 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_41f30e34-80e8-4c91-b206-e0b4507ae070/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i[256140,256153] [2023-11-24 23:51:35,649 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:51:35,839 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:51:35,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:35 WrapperNode [2023-11-24 23:51:35,840 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:51:35,841 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:51:35,842 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:51:35,842 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:51:35,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:35" (1/1) ... [2023-11-24 23:51:35,954 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:35" (1/1) ... [2023-11-24 23:51:36,158 INFO L138 Inliner]: procedures = 287, calls = 1452, calls flagged for inlining = 172, calls inlined = 168, statements flattened = 4326 [2023-11-24 23:51:36,159 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:51:36,160 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:51:36,160 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:51:36,160 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:51:36,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:35" (1/1) ... [2023-11-24 23:51:36,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:35" (1/1) ... [2023-11-24 23:51:36,206 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:35" (1/1) ... [2023-11-24 23:51:36,207 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:35" (1/1) ... [2023-11-24 23:51:36,321 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:35" (1/1) ... [2023-11-24 23:51:36,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:35" (1/1) ... [2023-11-24 23:51:36,362 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:35" (1/1) ... [2023-11-24 23:51:36,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:35" (1/1) ... [2023-11-24 23:51:36,412 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:51:36,413 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:51:36,414 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:51:36,414 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:51:36,415 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:35" (1/1) ... [2023-11-24 23:51:36,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:51:36,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f30e34-80e8-4c91-b206-e0b4507ae070/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:51:36,445 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f30e34-80e8-4c91-b206-e0b4507ae070/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:51:36,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f30e34-80e8-4c91-b206-e0b4507ae070/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:51:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 23:51:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 23:51:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-24 23:51:36,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-24 23:51:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-24 23:51:36,550 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-24 23:51:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-24 23:51:36,550 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-24 23:51:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2023-11-24 23:51:36,551 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2023-11-24 23:51:36,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 23:51:36,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 23:51:36,551 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open_clean [2023-11-24 23:51:36,551 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open_clean [2023-11-24 23:51:36,552 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-24 23:51:36,552 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-24 23:51:36,552 INFO L130 BoogieDeclarations]: Found specification of procedure devm_regulator_get [2023-11-24 23:51:36,552 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_regulator_get [2023-11-24 23:51:36,552 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-24 23:51:36,553 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-24 23:51:36,553 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_spi_trans [2023-11-24 23:51:36,553 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_spi_trans [2023-11-24 23:51:36,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2023-11-24 23:51:36,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2023-11-24 23:51:36,554 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_read_reg [2023-11-24 23:51:36,554 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_read_reg [2023-11-24 23:51:36,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:51:36,554 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-24 23:51:36,554 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-24 23:51:36,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:51:36,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-24 23:51:36,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-24 23:51:36,555 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_stop [2023-11-24 23:51:36,555 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_stop [2023-11-24 23:51:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_bits [2023-11-24 23:51:36,556 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_bits [2023-11-24 23:51:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-24 23:51:36,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-24 23:51:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx_ni [2023-11-24 23:51:36,556 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx_ni [2023-11-24 23:51:36,557 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2023-11-24 23:51:36,557 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2023-11-24 23:51:36,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:51:36,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:51:36,557 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2023-11-24 23:51:36,558 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2023-11-24 23:51:36,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2023-11-24 23:51:36,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2023-11-24 23:51:36,558 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-24 23:51:36,558 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-24 23:51:36,558 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-24 23:51:36,559 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-24 23:51:36,559 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-24 23:51:36,559 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-24 23:51:36,559 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-24 23:51:36,559 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-24 23:51:36,560 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2023-11-24 23:51:36,560 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2023-11-24 23:51:36,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-24 23:51:36,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-24 23:51:36,561 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-24 23:51:36,561 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-24 23:51:36,561 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2023-11-24 23:51:36,561 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2023-11-24 23:51:36,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-24 23:51:36,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-24 23:51:36,562 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-11-24 23:51:36,562 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-11-24 23:51:36,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-24 23:51:36,562 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_set_normal_mode [2023-11-24 23:51:36,563 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_set_normal_mode [2023-11-24 23:51:36,563 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-24 23:51:36,563 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-24 23:51:36,563 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_remove [2023-11-24 23:51:36,563 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_remove [2023-11-24 23:51:36,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:51:36,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-24 23:51:36,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-24 23:51:36,564 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-24 23:51:36,564 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-24 23:51:36,564 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_error_skb [2023-11-24 23:51:36,565 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_error_skb [2023-11-24 23:51:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_sleep [2023-11-24 23:51:36,565 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_sleep [2023-11-24 23:51:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-24 23:51:36,565 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-24 23:51:36,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:51:36,566 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_clean [2023-11-24 23:51:36,566 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_clean [2023-11-24 23:51:36,566 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2023-11-24 23:51:36,566 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2023-11-24 23:51:36,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-24 23:51:36,567 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-24 23:51:36,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-24 23:51:36,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-24 23:51:36,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-24 23:51:36,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-24 23:51:36,568 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_power_enable [2023-11-24 23:51:36,568 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_power_enable [2023-11-24 23:51:36,568 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_suspend [2023-11-24 23:51:36,568 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_suspend [2023-11-24 23:51:36,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:51:36,569 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open [2023-11-24 23:51:36,569 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open [2023-11-24 23:51:36,569 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_probe [2023-11-24 23:51:36,569 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_probe [2023-11-24 23:51:36,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-24 23:51:36,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-24 23:51:36,570 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_resume [2023-11-24 23:51:36,570 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_resume [2023-11-24 23:51:36,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:51:36,570 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_reset [2023-11-24 23:51:36,571 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_reset [2023-11-24 23:51:36,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:51:36,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-24 23:51:36,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-24 23:51:36,571 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-24 23:51:36,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-24 23:51:36,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:51:36,572 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2023-11-24 23:51:36,572 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2023-11-24 23:51:36,572 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:51:36,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:51:36,573 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:51:36,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:51:36,573 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2023-11-24 23:51:36,573 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2023-11-24 23:51:36,573 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-24 23:51:36,574 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-24 23:51:36,574 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_setup [2023-11-24 23:51:36,574 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_setup [2023-11-24 23:51:36,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-24 23:51:36,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-24 23:51:36,575 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2023-11-24 23:51:36,575 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2023-11-24 23:51:36,575 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-24 23:51:36,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-24 23:51:36,575 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-24 23:51:36,575 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-24 23:51:36,576 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_rx [2023-11-24 23:51:36,576 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_rx [2023-11-24 23:51:36,576 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_is_2510 [2023-11-24 23:51:36,576 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_is_2510 [2023-11-24 23:51:36,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:51:36,577 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2023-11-24 23:51:36,577 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2023-11-24 23:51:36,577 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_reg [2023-11-24 23:51:36,577 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_reg [2023-11-24 23:51:36,577 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-11-24 23:51:36,578 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-11-24 23:51:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-24 23:51:36,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-24 23:51:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:51:36,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:51:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-24 23:51:36,579 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-24 23:51:37,284 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:51:37,288 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:51:37,815 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-24 23:51:47,450 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:51:49,662 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:51:49,662 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:51:49,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:51:49 BoogieIcfgContainer [2023-11-24 23:51:49,665 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:51:49,667 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:51:49,667 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:51:49,671 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:51:49,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:51:32" (1/3) ... [2023-11-24 23:51:49,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773e16f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:51:49, skipping insertion in model container [2023-11-24 23:51:49,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:35" (2/3) ... [2023-11-24 23:51:49,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773e16f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:51:49, skipping insertion in model container [2023-11-24 23:51:49,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:51:49" (3/3) ... [2023-11-24 23:51:49,675 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2023-11-24 23:51:49,698 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:51:49,699 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:51:49,788 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:51:49,795 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;@4d3411f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:51:49,796 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:51:49,805 INFO L276 IsEmpty]: Start isEmpty. Operand has 947 states, 546 states have (on average 1.2728937728937728) internal successors, (695), 581 states have internal predecessors, (695), 330 states have call successors, (330), 70 states have call predecessors, (330), 69 states have return successors, (323), 316 states have call predecessors, (323), 323 states have call successors, (323) [2023-11-24 23:51:49,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-24 23:51:49,816 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:51:49,817 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-11-24 23:51:49,818 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:51:49,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:51:49,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1055060611, now seen corresponding path program 1 times [2023-11-24 23:51:49,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:51:49,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533059910] [2023-11-24 23:51:49,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:51:49,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:51:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:00,734 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-24 23:52:00,735 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:52:00,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533059910] [2023-11-24 23:52:00,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533059910] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:52:00,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:52:00,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:52:00,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752980950] [2023-11-24 23:52:00,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:52:00,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:52:00,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:52:00,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:52:00,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:52:00,798 INFO L87 Difference]: Start difference. First operand has 947 states, 546 states have (on average 1.2728937728937728) internal successors, (695), 581 states have internal predecessors, (695), 330 states have call successors, (330), 70 states have call predecessors, (330), 69 states have return successors, (323), 316 states have call predecessors, (323), 323 states have call successors, (323) Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-24 23:52:02,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:52:05,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:52:07,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:52:14,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:52:14,363 INFO L93 Difference]: Finished difference Result 1891 states and 2715 transitions. [2023-11-24 23:52:14,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 23:52:14,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 35 [2023-11-24 23:52:14,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:52:14,432 INFO L225 Difference]: With dead ends: 1891 [2023-11-24 23:52:14,433 INFO L226 Difference]: Without dead ends: 1855 [2023-11-24 23:52:14,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:52:14,446 INFO L413 NwaCegarLoop]: 1350 mSDtfsCounter, 1336 mSDsluCounter, 3831 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 5181 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:52:14,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1338 Valid, 5181 Invalid, 860 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 854 Invalid, 3 Unknown, 0 Unchecked, 13.1s Time] [2023-11-24 23:52:14,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1855 states. [2023-11-24 23:52:14,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1855 to 1852. [2023-11-24 23:52:14,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1852 states, 1075 states have (on average 1.2604651162790699) internal successors, (1355), 1134 states have internal predecessors, (1355), 640 states have call successors, (640), 139 states have call predecessors, (640), 136 states have return successors, (655), 619 states have call predecessors, (655), 634 states have call successors, (655) [2023-11-24 23:52:14,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1852 states to 1852 states and 2650 transitions. [2023-11-24 23:52:14,744 INFO L78 Accepts]: Start accepts. Automaton has 1852 states and 2650 transitions. Word has length 35 [2023-11-24 23:52:14,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:52:14,745 INFO L495 AbstractCegarLoop]: Abstraction has 1852 states and 2650 transitions. [2023-11-24 23:52:14,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-24 23:52:14,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1852 states and 2650 transitions. [2023-11-24 23:52:14,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-24 23:52:14,749 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:52:14,750 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-11-24 23:52:14,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:52:14,750 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:52:14,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:52:14,751 INFO L85 PathProgramCache]: Analyzing trace with hash 175257409, now seen corresponding path program 1 times [2023-11-24 23:52:14,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:52:14,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816386529] [2023-11-24 23:52:14,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:14,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:52:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:23,401 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-24 23:52:23,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:52:23,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816386529] [2023-11-24 23:52:23,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816386529] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:52:23,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:52:23,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:52:23,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211358895] [2023-11-24 23:52:23,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:52:23,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:52:23,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:52:23,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:52:23,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:52:23,406 INFO L87 Difference]: Start difference. First operand 1852 states and 2650 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)