./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_e62e1aa3-e270-42b0-bfcc-5dedd1dbcecb/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e62e1aa3-e270-42b0-bfcc-5dedd1dbcecb/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e62e1aa3-e270-42b0-bfcc-5dedd1dbcecb/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e62e1aa3-e270-42b0-bfcc-5dedd1dbcecb/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e62e1aa3-e270-42b0-bfcc-5dedd1dbcecb/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e62e1aa3-e270-42b0-bfcc-5dedd1dbcecb/bin/utaipan-verify-mE87zJ7Ire --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 6932181a2a9c8d4d7c700844e1db6a95829edf2ea099e17754a10b04a114b5cd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:19:01,772 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:19:01,895 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e62e1aa3-e270-42b0-bfcc-5dedd1dbcecb/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:19:01,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:19:01,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:19:01,943 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:19:01,944 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:19:01,945 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:19:01,945 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:19:01,950 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:19:01,951 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:19:01,952 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:19:01,953 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:19:01,954 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:19:01,955 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:19:01,955 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:19:01,956 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:19:01,956 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:19:01,957 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:19:01,957 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:19:01,959 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:19:01,959 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:19:01,961 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:19:01,961 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:19:01,962 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:19:01,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:19:01,962 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:19:01,963 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:19:01,963 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:19:01,963 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:19:01,965 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:19:01,965 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:19:01,965 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:19:01,966 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:19:01,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:19:01,966 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:19:01,966 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:19:01,967 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:19:01,967 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:19:01,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:19:01,967 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:19:01,968 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:19:01,968 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:19:01,968 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:19:01,969 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_e62e1aa3-e270-42b0-bfcc-5dedd1dbcecb/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e62e1aa3-e270-42b0-bfcc-5dedd1dbcecb/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6932181a2a9c8d4d7c700844e1db6a95829edf2ea099e17754a10b04a114b5cd [2023-11-23 21:19:02,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:19:02,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:19:02,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:19:02,333 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:19:02,333 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:19:02,335 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e62e1aa3-e270-42b0-bfcc-5dedd1dbcecb/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i [2023-11-23 21:19:05,473 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:19:06,042 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:19:06,042 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e62e1aa3-e270-42b0-bfcc-5dedd1dbcecb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i [2023-11-23 21:19:06,085 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e62e1aa3-e270-42b0-bfcc-5dedd1dbcecb/bin/utaipan-verify-mE87zJ7Ire/data/a6e2f2f56/7c7ead4b597a416aada4651880411a3e/FLAG2a68f99fe [2023-11-23 21:19:06,103 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e62e1aa3-e270-42b0-bfcc-5dedd1dbcecb/bin/utaipan-verify-mE87zJ7Ire/data/a6e2f2f56/7c7ead4b597a416aada4651880411a3e [2023-11-23 21:19:06,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:19:06,111 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:19:06,114 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:19:06,115 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:19:06,120 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:19:06,121 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:19:06" (1/1) ... [2023-11-23 21:19:06,122 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b3211d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:06, skipping insertion in model container [2023-11-23 21:19:06,122 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:19:06" (1/1) ... [2023-11-23 21:19:06,295 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:19:08,158 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_e62e1aa3-e270-42b0-bfcc-5dedd1dbcecb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i[213066,213079] [2023-11-23 21:19:08,210 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:19:08,266 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:19:08,451 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/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/9094/dscv_tempdir/dscv/ri/43_2a/drivers/usb/gadget/udc/gr_udc.c"), "i" (398), "i" (12UL)); [4219-4220] [2023-11-23 21:19:08,453 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [4229] [2023-11-23 21:19:08,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [4596] [2023-11-23 21:19:08,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [5061] [2023-11-23 21:19:08,694 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_e62e1aa3-e270-42b0-bfcc-5dedd1dbcecb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i[213066,213079] [2023-11-23 21:19:08,703 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:19:08,810 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:19:08,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:08 WrapperNode [2023-11-23 21:19:08,811 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:19:08,813 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:19:08,813 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:19:08,813 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:19:08,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:08" (1/1) ... [2023-11-23 21:19:08,938 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:08" (1/1) ... [2023-11-23 21:19:09,210 INFO L138 Inliner]: procedures = 222, calls = 2771, calls flagged for inlining = 89, calls inlined = 86, statements flattened = 5542 [2023-11-23 21:19:09,211 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:19:09,212 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:19:09,212 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:19:09,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:19:09,222 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:08" (1/1) ... [2023-11-23 21:19:09,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:08" (1/1) ... [2023-11-23 21:19:09,308 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:08" (1/1) ... [2023-11-23 21:19:09,309 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:08" (1/1) ... [2023-11-23 21:19:09,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:08" (1/1) ... [2023-11-23 21:19:09,468 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:08" (1/1) ... [2023-11-23 21:19:09,605 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:08" (1/1) ... [2023-11-23 21:19:09,628 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:08" (1/1) ... [2023-11-23 21:19:09,686 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:19:09,687 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:19:09,688 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:19:09,688 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:19:09,689 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:08" (1/1) ... [2023-11-23 21:19:09,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:19:09,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e62e1aa3-e270-42b0-bfcc-5dedd1dbcecb/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:19:09,721 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e62e1aa3-e270-42b0-bfcc-5dedd1dbcecb/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:19:09,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e62e1aa3-e270-42b0-bfcc-5dedd1dbcecb/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:19:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure gr_free_dma_desc_chain [2023-11-23 21:19:09,770 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_free_dma_desc_chain [2023-11-23 21:19:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure gr_finish_request [2023-11-23 21:19:09,771 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_finish_request [2023-11-23 21:19:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:19:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure gr_queue [2023-11-23 21:19:09,772 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_queue [2023-11-23 21:19:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:19:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:19:09,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:19:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2023-11-23 21:19:09,774 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_puts [2023-11-23 21:19:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:19:09,774 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:19:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_halt_wedge [2023-11-23 21:19:09,775 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_halt_wedge [2023-11-23 21:19:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 21:19:09,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 21:19:09,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:19:09,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:19:09,776 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-23 21:19:09,777 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-23 21:19:09,778 INFO L130 BoogieDeclarations]: Found specification of procedure usb_speed_string [2023-11-23 21:19:09,778 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_speed_string [2023-11-23 21:19:09,778 INFO L130 BoogieDeclarations]: Found specification of procedure gr_control_stall [2023-11-23 21:19:09,779 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_control_stall [2023-11-23 21:19:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2023-11-23 21:19:09,780 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2023-11-23 21:19:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure gr_stop_activity [2023-11-23 21:19:09,780 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_stop_activity [2023-11-23 21:19:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:19:09,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:19:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_enable [2023-11-23 21:19:09,782 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_enable [2023-11-23 21:19:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure gr_set_halt_wedge [2023-11-23 21:19:09,783 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_set_halt_wedge [2023-11-23 21:19:09,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:19:09,783 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:19:09,783 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2023-11-23 21:19:09,783 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2023-11-23 21:19:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:19:09,784 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:19:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure gr_queue_int [2023-11-23 21:19:09,784 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_queue_int [2023-11-23 21:19:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:19:09,785 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 21:19:09,785 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 21:19:09,785 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dequeue [2023-11-23 21:19:09,785 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dequeue [2023-11-23 21:19:09,785 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_remove [2023-11-23 21:19:09,786 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_remove [2023-11-23 21:19:09,786 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32be [2023-11-23 21:19:09,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32be [2023-11-23 21:19:09,786 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2023-11-23 21:19:09,787 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2023-11-23 21:19:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:19:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-23 21:19:09,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-23 21:19:09,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:19:09,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:19:09,789 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_setup [2023-11-23 21:19:09,790 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_setup [2023-11-23 21:19:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:19:09,790 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:19:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:19:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:19:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure gr_alloc_request [2023-11-23 21:19:09,791 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_alloc_request [2023-11-23 21:19:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure gr_wakeup [2023-11-23 21:19:09,792 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_wakeup [2023-11-23 21:19:09,792 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2023-11-23 21:19:09,792 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2023-11-23 21:19:09,792 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_reset [2023-11-23 21:19:09,792 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_reset [2023-11-23 21:19:09,793 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 21:19:09,793 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 21:19:09,793 INFO L130 BoogieDeclarations]: Found specification of procedure gr_udc_stop [2023-11-23 21:19:09,793 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_udc_stop [2023-11-23 21:19:09,793 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_nuke [2023-11-23 21:19:09,794 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_nuke [2023-11-23 21:19:09,794 INFO L130 BoogieDeclarations]: Found specification of procedure gr_fifo_flush [2023-11-23 21:19:09,794 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_fifo_flush [2023-11-23 21:19:09,795 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_disable [2023-11-23 21:19:09,795 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_disable [2023-11-23 21:19:09,795 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-23 21:19:09,795 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-23 21:19:09,796 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0out_requeue [2023-11-23 21:19:09,796 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0out_requeue [2023-11-23 21:19:09,796 INFO L130 BoogieDeclarations]: Found specification of procedure gr_vbus_connected [2023-11-23 21:19:09,796 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_vbus_connected [2023-11-23 21:19:09,796 INFO L130 BoogieDeclarations]: Found specification of procedure gr_enable_vbus_detect [2023-11-23 21:19:09,796 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_enable_vbus_detect [2023-11-23 21:19:09,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:19:09,797 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-23 21:19:09,797 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-23 21:19:09,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:19:09,797 INFO L130 BoogieDeclarations]: Found specification of procedure gr_irq_handler [2023-11-23 21:19:09,798 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_irq_handler [2023-11-23 21:19:09,798 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 21:19:09,798 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 21:19:09,798 INFO L130 BoogieDeclarations]: Found specification of procedure gr_set_wedge [2023-11-23 21:19:09,798 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_set_wedge [2023-11-23 21:19:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_threaded_irq [2023-11-23 21:19:09,799 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_threaded_irq [2023-11-23 21:19:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dfs_open [2023-11-23 21:19:09,799 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dfs_open [2023-11-23 21:19:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32be [2023-11-23 21:19:09,800 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32be [2023-11-23 21:19:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_respond_empty [2023-11-23 21:19:09,801 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_respond_empty [2023-11-23 21:19:09,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:19:09,801 INFO L130 BoogieDeclarations]: Found specification of procedure gr_irq [2023-11-23 21:19:09,802 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_irq [2023-11-23 21:19:09,802 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_init [2023-11-23 21:19:09,802 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_init [2023-11-23 21:19:09,802 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2023-11-23 21:19:09,803 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2023-11-23 21:19:09,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:19:09,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:19:09,803 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-23 21:19:09,803 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-23 21:19:09,804 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_respond [2023-11-23 21:19:09,804 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_respond [2023-11-23 21:19:09,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:19:09,804 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-23 21:19:09,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-23 21:19:09,804 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2023-11-23 21:19:09,805 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2023-11-23 21:19:09,805 INFO L130 BoogieDeclarations]: Found specification of procedure gr_disable_interrupts_and_pullup [2023-11-23 21:19:09,806 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_disable_interrupts_and_pullup [2023-11-23 21:19:09,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:19:09,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:19:09,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:19:09,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:19:09,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:19:09,808 INFO L130 BoogieDeclarations]: Found specification of procedure gr_request_irq [2023-11-23 21:19:09,808 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_request_irq [2023-11-23 21:19:09,808 INFO L130 BoogieDeclarations]: Found specification of procedure gr_add_dma_desc [2023-11-23 21:19:09,808 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_add_dma_desc [2023-11-23 21:19:09,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:19:09,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:19:09,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:19:09,810 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_state [2023-11-23 21:19:09,810 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_state [2023-11-23 21:19:09,813 INFO L130 BoogieDeclarations]: Found specification of procedure gr_abort_dma [2023-11-23 21:19:09,814 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_abort_dma [2023-11-23 21:19:09,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:19:09,815 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0state_string [2023-11-23 21:19:09,816 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0state_string [2023-11-23 21:19:09,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-23 21:19:09,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-23 21:19:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure gr_fifo_status [2023-11-23 21:19:09,818 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_fifo_status [2023-11-23 21:19:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:19:09,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:19:09,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2023-11-23 21:19:09,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2023-11-23 21:19:09,824 INFO L130 BoogieDeclarations]: Found specification of procedure gr_set_address [2023-11-23 21:19:09,824 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_set_address [2023-11-23 21:19:09,825 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dbgprint_request [2023-11-23 21:19:09,825 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dbgprint_request [2023-11-23 21:19:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure gr_free_request [2023-11-23 21:19:09,826 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_free_request [2023-11-23 21:19:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure gr_udc_start [2023-11-23 21:19:09,826 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_udc_start [2023-11-23 21:19:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure gr_set_ep0state [2023-11-23 21:19:09,827 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_set_ep0state [2023-11-23 21:19:09,827 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2023-11-23 21:19:09,827 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2023-11-23 21:19:09,827 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dma_advance [2023-11-23 21:19:09,827 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dma_advance [2023-11-23 21:19:09,827 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2023-11-23 21:19:09,827 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2023-11-23 21:19:09,828 INFO L130 BoogieDeclarations]: Found specification of procedure of_property_read_u32_index [2023-11-23 21:19:09,828 INFO L138 BoogieDeclarations]: Found implementation of procedure of_property_read_u32_index [2023-11-23 21:19:09,828 INFO L130 BoogieDeclarations]: Found specification of procedure gr_get_frame [2023-11-23 21:19:09,828 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_get_frame [2023-11-23 21:19:09,828 INFO L130 BoogieDeclarations]: Found specification of procedure gr_probe [2023-11-23 21:19:09,828 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_probe [2023-11-23 21:19:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_set_maxpacket_limit [2023-11-23 21:19:09,829 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_set_maxpacket_limit [2023-11-23 21:19:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure gr_remove [2023-11-23 21:19:09,829 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_remove [2023-11-23 21:19:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_respond_u16 [2023-11-23 21:19:09,829 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_respond_u16 [2023-11-23 21:19:09,830 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-23 21:19:09,830 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-23 21:19:09,830 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 21:19:09,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 21:19:09,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:19:09,830 INFO L130 BoogieDeclarations]: Found specification of procedure gr_start_dma [2023-11-23 21:19:09,831 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_start_dma [2023-11-23 21:19:09,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:19:09,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:19:09,831 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:19:09,831 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:19:10,583 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:19:10,588 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:19:11,873 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:19:16,310 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:19:18,401 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:19:18,401 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:19:18,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:19:18 BoogieIcfgContainer [2023-11-23 21:19:18,404 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:19:18,408 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:19:18,408 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:19:18,411 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:19:18,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:19:06" (1/3) ... [2023-11-23 21:19:18,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6749eba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:19:18, skipping insertion in model container [2023-11-23 21:19:18,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:08" (2/3) ... [2023-11-23 21:19:18,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6749eba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:19:18, skipping insertion in model container [2023-11-23 21:19:18,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:19:18" (3/3) ... [2023-11-23 21:19:18,418 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i [2023-11-23 21:19:18,440 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:19:18,440 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:19:18,549 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:19:18,557 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;@1769ccf0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:19:18,558 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:19:18,571 INFO L276 IsEmpty]: Start isEmpty. Operand has 1356 states, 846 states have (on average 1.3522458628841607) internal successors, (1144), 890 states have internal predecessors, (1144), 419 states have call successors, (419), 90 states have call predecessors, (419), 89 states have return successors, (409), 397 states have call predecessors, (409), 409 states have call successors, (409) [2023-11-23 21:19:18,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-23 21:19:18,613 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:18,617 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:19:18,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:19:18,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:18,630 INFO L85 PathProgramCache]: Analyzing trace with hash -688980724, now seen corresponding path program 1 times [2023-11-23 21:19:18,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:19:18,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062783522] [2023-11-23 21:19:18,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:18,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:19:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:19:20,122 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-23 21:19:20,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:19:20,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062783522] [2023-11-23 21:19:20,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062783522] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:19:20,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:19:20,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:19:20,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696565614] [2023-11-23 21:19:20,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:19:20,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:19:20,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:19:20,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:19:20,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:19:20,176 INFO L87 Difference]: Start difference. First operand has 1356 states, 846 states have (on average 1.3522458628841607) internal successors, (1144), 890 states have internal predecessors, (1144), 419 states have call successors, (419), 90 states have call predecessors, (419), 89 states have return successors, (409), 397 states have call predecessors, (409), 409 states have call successors, (409) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-23 21:19:23,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:19:23,516 INFO L93 Difference]: Finished difference Result 3907 states and 5786 transitions. [2023-11-23 21:19:23,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:19:23,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 132 [2023-11-23 21:19:23,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:19:23,638 INFO L225 Difference]: With dead ends: 3907 [2023-11-23 21:19:23,638 INFO L226 Difference]: Without dead ends: 2551 [2023-11-23 21:19:23,665 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 [2023-11-23 21:19:23,669 INFO L413 NwaCegarLoop]: 1798 mSDtfsCounter, 1795 mSDsluCounter, 1704 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1795 SdHoareTripleChecker+Valid, 3502 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:19:23,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1795 Valid, 3502 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-23 21:19:23,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2551 states. [2023-11-23 21:19:23,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2551 to 2548. [2023-11-23 21:19:23,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 1602 states have (on average 1.3352059925093633) internal successors, (2139), 1665 states have internal predecessors, (2139), 774 states have call successors, (774), 172 states have call predecessors, (774), 171 states have return successors, (773), 749 states have call predecessors, (773), 773 states have call successors, (773) [2023-11-23 21:19:23,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 3686 transitions. [2023-11-23 21:19:23,988 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 3686 transitions. Word has length 132 [2023-11-23 21:19:23,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:19:23,993 INFO L495 AbstractCegarLoop]: Abstraction has 2548 states and 3686 transitions. [2023-11-23 21:19:23,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-23 21:19:23,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 3686 transitions. [2023-11-23 21:19:24,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-11-23 21:19:24,015 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:24,015 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:19:24,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:19:24,016 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:19:24,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:24,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1035800088, now seen corresponding path program 1 times [2023-11-23 21:19:24,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:19:24,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245126784] [2023-11-23 21:19:24,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:24,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:19:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:19:25,499 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-11-23 21:19:25,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:19:25,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245126784] [2023-11-23 21:19:25,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245126784] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:19:25,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:19:25,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:19:25,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87530248] [2023-11-23 21:19:25,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:19:25,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:19:25,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:19:25,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:19:25,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:19:25,507 INFO L87 Difference]: Start difference. First operand 2548 states and 3686 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-23 21:19:31,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:19:31,557 INFO L93 Difference]: Finished difference Result 7612 states and 11016 transitions. [2023-11-23 21:19:31,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:19:31,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 185 [2023-11-23 21:19:31,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:19:31,606 INFO L225 Difference]: With dead ends: 7612 [2023-11-23 21:19:31,607 INFO L226 Difference]: Without dead ends: 5091 [2023-11-23 21:19:31,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:19:31,625 INFO L413 NwaCegarLoop]: 1930 mSDtfsCounter, 1924 mSDsluCounter, 5556 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1928 SdHoareTripleChecker+Valid, 7486 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:19:31,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1928 Valid, 7486 Invalid, 850 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-11-23 21:19:31,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5091 states. [2023-11-23 21:19:31,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5091 to 5068. [2023-11-23 21:19:31,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5068 states, 3189 states have (on average 1.3367826904985889) internal successors, (4263), 3323 states have internal predecessors, (4263), 1535 states have call successors, (1535), 344 states have call predecessors, (1535), 343 states have return successors, (1534), 1478 states have call predecessors, (1534), 1534 states have call successors, (1534) [2023-11-23 21:19:31,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5068 states to 5068 states and 7332 transitions. [2023-11-23 21:19:31,979 INFO L78 Accepts]: Start accepts. Automaton has 5068 states and 7332 transitions. Word has length 185 [2023-11-23 21:19:31,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:19:31,981 INFO L495 AbstractCegarLoop]: Abstraction has 5068 states and 7332 transitions. [2023-11-23 21:19:31,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-23 21:19:31,982 INFO L276 IsEmpty]: Start isEmpty. Operand 5068 states and 7332 transitions. [2023-11-23 21:19:31,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-11-23 21:19:31,994 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:31,994 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:19:31,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:19:31,995 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:19:32,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:32,005 INFO L85 PathProgramCache]: Analyzing trace with hash 2073103795, now seen corresponding path program 1 times [2023-11-23 21:19:32,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:19:32,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862738605] [2023-11-23 21:19:32,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:32,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:19:32,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:19:33,010 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-11-23 21:19:33,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:19:33,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862738605] [2023-11-23 21:19:33,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862738605] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:19:33,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:19:33,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:19:33,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391055695] [2023-11-23 21:19:33,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:19:33,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:19:33,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:19:33,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:19:33,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:19:33,014 INFO L87 Difference]: Start difference. First operand 5068 states and 7332 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-23 21:19:34,067 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 [] [2023-11-23 21:19:38,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:19:38,251 INFO L93 Difference]: Finished difference Result 15190 states and 22004 transitions. [2023-11-23 21:19:38,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:19:38,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 182 [2023-11-23 21:19:38,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:19:38,341 INFO L225 Difference]: With dead ends: 15190 [2023-11-23 21:19:38,342 INFO L226 Difference]: Without dead ends: 10149 [2023-11-23 21:19:38,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:19:38,464 INFO L413 NwaCegarLoop]: 1945 mSDtfsCounter, 1925 mSDsluCounter, 5589 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1929 SdHoareTripleChecker+Valid, 7534 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:19:38,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1929 Valid, 7534 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-23 21:19:38,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10149 states. [2023-11-23 21:19:39,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10149 to 10098. [2023-11-23 21:19:39,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10098 states, 6359 states have (on average 1.337788960528385) internal successors, (8507), 6639 states have internal predecessors, (8507), 3053 states have call successors, (3053), 686 states have call predecessors, (3053), 685 states have return successors, (3068), 2924 states have call predecessors, (3068), 3052 states have call successors, (3068) [2023-11-23 21:19:39,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10098 states to 10098 states and 14628 transitions. [2023-11-23 21:19:39,189 INFO L78 Accepts]: Start accepts. Automaton has 10098 states and 14628 transitions. Word has length 182 [2023-11-23 21:19:39,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:19:39,190 INFO L495 AbstractCegarLoop]: Abstraction has 10098 states and 14628 transitions. [2023-11-23 21:19:39,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-23 21:19:39,191 INFO L276 IsEmpty]: Start isEmpty. Operand 10098 states and 14628 transitions. [2023-11-23 21:19:39,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-11-23 21:19:39,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:39,207 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:19:39,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:19:39,207 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:19:39,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:39,208 INFO L85 PathProgramCache]: Analyzing trace with hash -933928463, now seen corresponding path program 1 times [2023-11-23 21:19:39,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:19:39,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452041463] [2023-11-23 21:19:39,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:39,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:19:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:19:40,278 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-11-23 21:19:40,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:19:40,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452041463] [2023-11-23 21:19:40,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452041463] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:19:40,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:19:40,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:19:40,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488115395] [2023-11-23 21:19:40,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:19:40,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:19:40,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:19:40,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:19:40,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:19:40,282 INFO L87 Difference]: Start difference. First operand 10098 states and 14628 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-23 21:19:42,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:46,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:19:46,942 INFO L93 Difference]: Finished difference Result 23580 states and 34140 transitions. [2023-11-23 21:19:46,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:19:46,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 183 [2023-11-23 21:19:46,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:19:47,073 INFO L225 Difference]: With dead ends: 23580 [2023-11-23 21:19:47,073 INFO L226 Difference]: Without dead ends: 15211 [2023-11-23 21:19:47,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:19:47,119 INFO L413 NwaCegarLoop]: 1767 mSDtfsCounter, 1921 mSDsluCounter, 5230 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1925 SdHoareTripleChecker+Valid, 6997 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:19:47,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1925 Valid, 6997 Invalid, 811 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 808 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2023-11-23 21:19:47,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15211 states.