./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_cc753036-23fb-4c93-abe0-669830349465/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc753036-23fb-4c93-abe0-669830349465/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc753036-23fb-4c93-abe0-669830349465/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc753036-23fb-4c93-abe0-669830349465/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc753036-23fb-4c93-abe0-669830349465/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc753036-23fb-4c93-abe0-669830349465/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b7252c0ad173c04e7e814a901053190b8d4e6b601847082c3bd48f0637286d7b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:06:22,776 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:06:22,887 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc753036-23fb-4c93-abe0-669830349465/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 08:06:22,892 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:06:22,892 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:06:22,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:06:22,939 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:06:22,940 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:06:22,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:06:22,946 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:06:22,948 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:06:22,948 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:06:22,949 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:06:22,950 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:06:22,951 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:06:22,951 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:06:22,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:06:22,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:06:22,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:06:22,953 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:06:22,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:06:22,954 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:06:22,955 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:06:22,958 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:06:22,958 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:06:22,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:06:22,959 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:06:22,960 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:06:22,960 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:06:22,961 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:06:22,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:06:22,962 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:06:22,963 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:06:22,963 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:06:22,963 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:06:22,963 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:06:22,964 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_cc753036-23fb-4c93-abe0-669830349465/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc753036-23fb-4c93-abe0-669830349465/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7252c0ad173c04e7e814a901053190b8d4e6b601847082c3bd48f0637286d7b [2023-11-19 08:06:23,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:06:23,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:06:23,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:06:23,332 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:06:23,333 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:06:23,334 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc753036-23fb-4c93-abe0-669830349465/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i [2023-11-19 08:06:26,555 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:06:27,226 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:06:27,227 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc753036-23fb-4c93-abe0-669830349465/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i [2023-11-19 08:06:27,281 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc753036-23fb-4c93-abe0-669830349465/bin/uautomizer-verify-uCwYo4JHxu/data/931a7e7b5/a59a36d2bf724320af92f2b32c3617d9/FLAG23dda0e12 [2023-11-19 08:06:27,301 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc753036-23fb-4c93-abe0-669830349465/bin/uautomizer-verify-uCwYo4JHxu/data/931a7e7b5/a59a36d2bf724320af92f2b32c3617d9 [2023-11-19 08:06:27,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:06:27,310 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:06:27,314 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:27,315 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:06:27,320 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:06:27,323 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:27" (1/1) ... [2023-11-19 08:06:27,325 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5082ff1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:27, skipping insertion in model container [2023-11-19 08:06:27,325 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:27" (1/1) ... [2023-11-19 08:06:27,480 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:06:29,547 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_cc753036-23fb-4c93-abe0-669830349465/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i[214499,214512] [2023-11-19 08:06:29,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:29,727 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:06:29,913 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--32_7a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/8654/dscv_tempdir/dscv/ri/32_7a/drivers/usb/gadget/udc/gr_udc.c"), "i" (398), "i" (12UL)); [4244-4245] [2023-11-19 08:06:29,915 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [4254] [2023-11-19 08:06:29,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [4621] [2023-11-19 08:06:29,984 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [5086] [2023-11-19 08:06:30,149 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_cc753036-23fb-4c93-abe0-669830349465/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i[214499,214512] [2023-11-19 08:06:30,170 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:30,296 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:06:30,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:30 WrapperNode [2023-11-19 08:06:30,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:30,299 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:06:30,299 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:06:30,299 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:06:30,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:30" (1/1) ... [2023-11-19 08:06:30,426 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:30" (1/1) ... [2023-11-19 08:06:30,591 INFO L138 Inliner]: procedures = 259, calls = 2833, calls flagged for inlining = 87, calls inlined = 83, statements flattened = 5537 [2023-11-19 08:06:30,591 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:06:30,592 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:06:30,592 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:06:30,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:06:30,602 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:30" (1/1) ... [2023-11-19 08:06:30,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:30" (1/1) ... [2023-11-19 08:06:30,632 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:30" (1/1) ... [2023-11-19 08:06:30,632 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:30" (1/1) ... [2023-11-19 08:06:30,845 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:30" (1/1) ... [2023-11-19 08:06:30,892 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:30" (1/1) ... [2023-11-19 08:06:30,912 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:30" (1/1) ... [2023-11-19 08:06:30,929 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:30" (1/1) ... [2023-11-19 08:06:30,967 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:06:30,968 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:06:30,968 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:06:30,969 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:06:30,970 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:30" (1/1) ... [2023-11-19 08:06:30,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:06:30,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc753036-23fb-4c93-abe0-669830349465/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:06:31,004 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc753036-23fb-4c93-abe0-669830349465/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:06:31,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc753036-23fb-4c93-abe0-669830349465/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:06:31,122 INFO L130 BoogieDeclarations]: Found specification of procedure gr_free_dma_desc_chain [2023-11-19 08:06:31,122 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_free_dma_desc_chain [2023-11-19 08:06:31,123 INFO L130 BoogieDeclarations]: Found specification of procedure gr_finish_request [2023-11-19 08:06:31,123 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_finish_request [2023-11-19 08:06:31,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 08:06:31,123 INFO L130 BoogieDeclarations]: Found specification of procedure gr_queue [2023-11-19 08:06:31,123 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_queue [2023-11-19 08:06:31,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 08:06:31,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 08:06:31,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 08:06:31,126 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2023-11-19 08:06:31,126 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_puts [2023-11-19 08:06:31,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 08:06:31,128 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 08:06:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_halt_wedge [2023-11-19 08:06:31,128 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_halt_wedge [2023-11-19 08:06:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 08:06:31,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 08:06:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-19 08:06:31,129 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-19 08:06:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure usb_speed_string [2023-11-19 08:06:31,129 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_speed_string [2023-11-19 08:06:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure gr_control_stall [2023-11-19 08:06:31,130 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_control_stall [2023-11-19 08:06:31,131 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2023-11-19 08:06:31,131 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2023-11-19 08:06:31,131 INFO L130 BoogieDeclarations]: Found specification of procedure gr_stop_activity [2023-11-19 08:06:31,131 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_stop_activity [2023-11-19 08:06:31,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 08:06:31,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 08:06:31,133 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_enable [2023-11-19 08:06:31,133 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_enable [2023-11-19 08:06:31,133 INFO L130 BoogieDeclarations]: Found specification of procedure gr_set_halt_wedge [2023-11-19 08:06:31,134 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_set_halt_wedge [2023-11-19 08:06:31,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 08:06:31,134 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 08:06:31,134 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2023-11-19 08:06:31,134 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2023-11-19 08:06:31,135 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 08:06:31,135 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 08:06:31,136 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 08:06:31,136 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 08:06:31,136 INFO L130 BoogieDeclarations]: Found specification of procedure gr_queue_int [2023-11-19 08:06:31,136 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_queue_int [2023-11-19 08:06:31,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:06:31,136 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-19 08:06:31,137 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-19 08:06:31,137 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dequeue [2023-11-19 08:06:31,137 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dequeue [2023-11-19 08:06:31,137 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_remove [2023-11-19 08:06:31,137 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_remove [2023-11-19 08:06:31,137 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32be [2023-11-19 08:06:31,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32be [2023-11-19 08:06:31,138 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2023-11-19 08:06:31,138 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2023-11-19 08:06:31,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 08:06:31,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 08:06:31,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 08:06:31,138 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_setup [2023-11-19 08:06:31,139 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_setup [2023-11-19 08:06:31,139 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 08:06:31,139 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 08:06:31,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:06:31,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 08:06:31,139 INFO L130 BoogieDeclarations]: Found specification of procedure gr_alloc_request [2023-11-19 08:06:31,140 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_alloc_request [2023-11-19 08:06:31,140 INFO L130 BoogieDeclarations]: Found specification of procedure gr_wakeup [2023-11-19 08:06:31,141 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_wakeup [2023-11-19 08:06:31,141 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2023-11-19 08:06:31,141 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2023-11-19 08:06:31,141 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_reset [2023-11-19 08:06:31,142 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_reset [2023-11-19 08:06:31,142 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 08:06:31,142 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 08:06:31,142 INFO L130 BoogieDeclarations]: Found specification of procedure gr_udc_stop [2023-11-19 08:06:31,142 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_udc_stop [2023-11-19 08:06:31,142 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-19 08:06:31,143 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-19 08:06:31,143 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_nuke [2023-11-19 08:06:31,143 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_nuke [2023-11-19 08:06:31,143 INFO L130 BoogieDeclarations]: Found specification of procedure gr_fifo_flush [2023-11-19 08:06:31,143 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_fifo_flush [2023-11-19 08:06:31,144 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_disable [2023-11-19 08:06:31,144 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_disable [2023-11-19 08:06:31,145 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 08:06:31,145 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 08:06:31,145 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0out_requeue [2023-11-19 08:06:31,146 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0out_requeue [2023-11-19 08:06:31,146 INFO L130 BoogieDeclarations]: Found specification of procedure gr_vbus_connected [2023-11-19 08:06:31,146 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_vbus_connected [2023-11-19 08:06:31,146 INFO L130 BoogieDeclarations]: Found specification of procedure gr_enable_vbus_detect [2023-11-19 08:06:31,146 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_enable_vbus_detect [2023-11-19 08:06:31,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 08:06:31,147 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-19 08:06:31,147 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-19 08:06:31,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 08:06:31,147 INFO L130 BoogieDeclarations]: Found specification of procedure gr_irq_handler [2023-11-19 08:06:31,147 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_irq_handler [2023-11-19 08:06:31,147 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-19 08:06:31,148 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-19 08:06:31,148 INFO L130 BoogieDeclarations]: Found specification of procedure gr_set_wedge [2023-11-19 08:06:31,148 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_set_wedge [2023-11-19 08:06:31,149 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_threaded_irq [2023-11-19 08:06:31,149 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_threaded_irq [2023-11-19 08:06:31,149 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dfs_open [2023-11-19 08:06:31,149 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dfs_open [2023-11-19 08:06:31,149 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32be [2023-11-19 08:06:31,149 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32be [2023-11-19 08:06:31,150 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_respond_empty [2023-11-19 08:06:31,150 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_respond_empty [2023-11-19 08:06:31,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:06:31,150 INFO L130 BoogieDeclarations]: Found specification of procedure gr_irq [2023-11-19 08:06:31,150 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_irq [2023-11-19 08:06:31,150 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_init [2023-11-19 08:06:31,150 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_init [2023-11-19 08:06:31,151 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2023-11-19 08:06:31,151 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2023-11-19 08:06:31,151 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-19 08:06:31,151 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-19 08:06:31,151 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_respond [2023-11-19 08:06:31,151 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_respond [2023-11-19 08:06:31,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:06:31,152 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-19 08:06:31,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-19 08:06:31,152 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2023-11-19 08:06:31,152 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2023-11-19 08:06:31,152 INFO L130 BoogieDeclarations]: Found specification of procedure gr_disable_interrupts_and_pullup [2023-11-19 08:06:31,153 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_disable_interrupts_and_pullup [2023-11-19 08:06:31,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 08:06:31,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 08:06:31,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 08:06:31,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 08:06:31,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 08:06:31,153 INFO L130 BoogieDeclarations]: Found specification of procedure gr_request_irq [2023-11-19 08:06:31,154 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_request_irq [2023-11-19 08:06:31,154 INFO L130 BoogieDeclarations]: Found specification of procedure gr_add_dma_desc [2023-11-19 08:06:31,154 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_add_dma_desc [2023-11-19 08:06:31,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-19 08:06:31,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-19 08:06:31,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:06:31,155 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_state [2023-11-19 08:06:31,155 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_state [2023-11-19 08:06:31,155 INFO L130 BoogieDeclarations]: Found specification of procedure gr_abort_dma [2023-11-19 08:06:31,155 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_abort_dma [2023-11-19 08:06:31,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 08:06:31,155 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0state_string [2023-11-19 08:06:31,156 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0state_string [2023-11-19 08:06:31,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-19 08:06:31,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-19 08:06:31,156 INFO L130 BoogieDeclarations]: Found specification of procedure gr_fifo_status [2023-11-19 08:06:31,156 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_fifo_status [2023-11-19 08:06:31,156 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 08:06:31,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 08:06:31,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2023-11-19 08:06:31,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2023-11-19 08:06:31,157 INFO L130 BoogieDeclarations]: Found specification of procedure gr_set_address [2023-11-19 08:06:31,157 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_set_address [2023-11-19 08:06:31,157 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dbgprint_request [2023-11-19 08:06:31,157 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dbgprint_request [2023-11-19 08:06:31,158 INFO L130 BoogieDeclarations]: Found specification of procedure gr_free_request [2023-11-19 08:06:31,158 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_free_request [2023-11-19 08:06:31,158 INFO L130 BoogieDeclarations]: Found specification of procedure gr_udc_start [2023-11-19 08:06:31,158 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_udc_start [2023-11-19 08:06:31,158 INFO L130 BoogieDeclarations]: Found specification of procedure gr_set_ep0state [2023-11-19 08:06:31,158 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_set_ep0state [2023-11-19 08:06:31,159 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2023-11-19 08:06:31,159 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2023-11-19 08:06:31,159 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dma_advance [2023-11-19 08:06:31,159 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dma_advance [2023-11-19 08:06:31,159 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2023-11-19 08:06:31,159 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2023-11-19 08:06:31,160 INFO L130 BoogieDeclarations]: Found specification of procedure of_property_read_u32_index [2023-11-19 08:06:31,160 INFO L138 BoogieDeclarations]: Found implementation of procedure of_property_read_u32_index [2023-11-19 08:06:31,160 INFO L130 BoogieDeclarations]: Found specification of procedure gr_get_frame [2023-11-19 08:06:31,160 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_get_frame [2023-11-19 08:06:31,160 INFO L130 BoogieDeclarations]: Found specification of procedure gr_probe [2023-11-19 08:06:31,160 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_probe [2023-11-19 08:06:31,160 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_set_maxpacket_limit [2023-11-19 08:06:31,161 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_set_maxpacket_limit [2023-11-19 08:06:31,161 INFO L130 BoogieDeclarations]: Found specification of procedure gr_remove [2023-11-19 08:06:31,161 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_remove [2023-11-19 08:06:31,161 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_respond_u16 [2023-11-19 08:06:31,161 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_respond_u16 [2023-11-19 08:06:31,161 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 08:06:31,161 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 08:06:31,162 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-19 08:06:31,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-19 08:06:31,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:06:31,162 INFO L130 BoogieDeclarations]: Found specification of procedure gr_start_dma [2023-11-19 08:06:31,162 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_start_dma [2023-11-19 08:06:31,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:06:31,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:06:31,163 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 08:06:31,163 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 08:06:31,825 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:06:31,830 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:06:33,338 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 08:06:38,604 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:06:38,641 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:06:38,641 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 08:06:38,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:38 BoogieIcfgContainer [2023-11-19 08:06:38,662 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:06:38,666 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:06:38,666 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:06:38,670 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:06:38,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:06:27" (1/3) ... [2023-11-19 08:06:38,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4698dfe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:38, skipping insertion in model container [2023-11-19 08:06:38,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:30" (2/3) ... [2023-11-19 08:06:38,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4698dfe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:38, skipping insertion in model container [2023-11-19 08:06:38,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:38" (3/3) ... [2023-11-19 08:06:38,676 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i [2023-11-19 08:06:38,701 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:06:38,701 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:06:38,818 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:06:38,826 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@52c92aac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:06:38,826 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:06:38,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 1756 states, 1248 states have (on average 1.4014423076923077) internal successors, (1749), 1294 states have internal predecessors, (1749), 418 states have call successors, (418), 89 states have call predecessors, (418), 88 states have return successors, (408), 396 states have call predecessors, (408), 408 states have call successors, (408) [2023-11-19 08:06:38,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-19 08:06:38,877 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:38,879 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 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] [2023-11-19 08:06:38,880 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:38,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:38,889 INFO L85 PathProgramCache]: Analyzing trace with hash -834052582, now seen corresponding path program 1 times [2023-11-19 08:06:38,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:38,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233297800] [2023-11-19 08:06:38,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:38,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:39,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:06:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:39,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:39,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:06:39,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:39,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 08:06:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:39,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:39,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:06:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:39,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 08:06:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:40,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:40,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:40,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:06:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:40,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 08:06:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:40,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:40,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:06:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:40,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-19 08:06:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:40,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:40,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-19 08:06:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:40,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:40,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-19 08:06:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:40,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:40,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-19 08:06:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:40,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:40,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-19 08:06:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:40,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:40,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:40,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-19 08:06:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:40,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:40,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-19 08:06:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:40,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:40,300 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2023-11-19 08:06:40,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:40,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233297800] [2023-11-19 08:06:40,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233297800] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:40,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:40,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:06:40,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599772001] [2023-11-19 08:06:40,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:40,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:06:40,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:40,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:06:40,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:06:40,369 INFO L87 Difference]: Start difference. First operand has 1756 states, 1248 states have (on average 1.4014423076923077) internal successors, (1749), 1294 states have internal predecessors, (1749), 418 states have call successors, (418), 89 states have call predecessors, (418), 88 states have return successors, (408), 396 states have call predecessors, (408), 408 states have call successors, (408) Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 08:06:45,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:45,576 INFO L93 Difference]: Finished difference Result 3823 states and 5785 transitions. [2023-11-19 08:06:45,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:06:45,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 159 [2023-11-19 08:06:45,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:45,637 INFO L225 Difference]: With dead ends: 3823 [2023-11-19 08:06:45,638 INFO L226 Difference]: Without dead ends: 2054 [2023-11-19 08:06:45,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:06:45,665 INFO L413 NwaCegarLoop]: 2016 mSDtfsCounter, 2221 mSDsluCounter, 1303 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 1663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2254 SdHoareTripleChecker+Valid, 3319 SdHoareTripleChecker+Invalid, 2886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1663 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:45,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2254 Valid, 3319 Invalid, 2886 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1663 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-19 08:06:45,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2054 states. [2023-11-19 08:06:45,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2054 to 1738. [2023-11-19 08:06:45,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1738 states, 1242 states have (on average 1.3792270531400965) internal successors, (1713), 1276 states have internal predecessors, (1713), 408 states have call successors, (408), 88 states have call predecessors, (408), 87 states have return successors, (405), 393 states have call predecessors, (405), 405 states have call successors, (405) [2023-11-19 08:06:45,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 2526 transitions. [2023-11-19 08:06:45,929 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 2526 transitions. Word has length 159 [2023-11-19 08:06:45,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:45,930 INFO L495 AbstractCegarLoop]: Abstraction has 1738 states and 2526 transitions. [2023-11-19 08:06:45,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 08:06:45,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 2526 transitions. [2023-11-19 08:06:45,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-19 08:06:45,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:45,936 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 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] [2023-11-19 08:06:45,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:06:45,936 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:45,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:45,937 INFO L85 PathProgramCache]: Analyzing trace with hash 754972946, now seen corresponding path program 1 times [2023-11-19 08:06:45,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:45,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806203802] [2023-11-19 08:06:45,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:45,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:46,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:06:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:46,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:46,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:06:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:46,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 08:06:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:46,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:46,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:06:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:46,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 08:06:46,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:46,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:46,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:06:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:46,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 08:06:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:46,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:46,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:06:46,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:46,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-19 08:06:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:46,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:46,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:46,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-19 08:06:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:46,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:46,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-19 08:06:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:46,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:46,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:46,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-19 08:06:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:47,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:47,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:47,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-19 08:06:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:47,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:47,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:47,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-19 08:06:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:47,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:47,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-19 08:06:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:47,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:47,093 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2023-11-19 08:06:47,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:47,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806203802] [2023-11-19 08:06:47,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806203802] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:47,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:47,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 08:06:47,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455466813] [2023-11-19 08:06:47,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:47,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:06:47,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:47,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:06:47,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:06:47,099 INFO L87 Difference]: Start difference. First operand 1738 states and 2526 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 08:06:55,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:55,726 INFO L93 Difference]: Finished difference Result 5751 states and 8496 transitions. [2023-11-19 08:06:55,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 08:06:55,727 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 159 [2023-11-19 08:06:55,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:55,762 INFO L225 Difference]: With dead ends: 5751 [2023-11-19 08:06:55,762 INFO L226 Difference]: Without dead ends: 4043 [2023-11-19 08:06:55,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:06:55,772 INFO L413 NwaCegarLoop]: 1953 mSDtfsCounter, 6784 mSDsluCounter, 3073 mSDsCounter, 0 mSdLazyCounter, 2059 mSolverCounterSat, 3506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7052 SdHoareTripleChecker+Valid, 5026 SdHoareTripleChecker+Invalid, 5565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3506 IncrementalHoareTripleChecker+Valid, 2059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:55,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7052 Valid, 5026 Invalid, 5565 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3506 Valid, 2059 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2023-11-19 08:06:55,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4043 states. [2023-11-19 08:06:55,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4043 to 3414. [2023-11-19 08:06:55,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3414 states, 2445 states have (on average 1.3828220858895706) internal successors, (3381), 2511 states have internal predecessors, (3381), 795 states have call successors, (795), 174 states have call predecessors, (795), 173 states have return successors, (792), 768 states have call predecessors, (792), 792 states have call successors, (792) [2023-11-19 08:06:56,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3414 states to 3414 states and 4968 transitions. [2023-11-19 08:06:56,007 INFO L78 Accepts]: Start accepts. Automaton has 3414 states and 4968 transitions. Word has length 159 [2023-11-19 08:06:56,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:56,009 INFO L495 AbstractCegarLoop]: Abstraction has 3414 states and 4968 transitions. [2023-11-19 08:06:56,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 08:06:56,013 INFO L276 IsEmpty]: Start isEmpty. Operand 3414 states and 4968 transitions. [2023-11-19 08:06:56,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-19 08:06:56,023 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:56,024 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:56,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:06:56,024 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:56,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:56,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1802109547, now seen corresponding path program 1 times [2023-11-19 08:06:56,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:56,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277492349] [2023-11-19 08:06:56,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:56,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:06:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:06:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 08:06:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:06:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 08:06:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:06:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 08:06:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:06:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-19 08:06:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-19 08:06:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-19 08:06:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-19 08:06:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-19 08:06:56,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-19 08:06:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-19 08:06:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:56,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-19 08:06:56,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:57,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:06:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:57,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:06:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:57,024 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2023-11-19 08:06:57,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:57,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277492349] [2023-11-19 08:06:57,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277492349] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:57,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:57,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 08:06:57,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066743155] [2023-11-19 08:06:57,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:57,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:06:57,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:57,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:06:57,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:06:57,029 INFO L87 Difference]: Start difference. First operand 3414 states and 4968 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 08:07:01,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:07:01,798 INFO L93 Difference]: Finished difference Result 4045 states and 6009 transitions. [2023-11-19 08:07:01,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:07:01,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 179 [2023-11-19 08:07:01,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:07:01,844 INFO L225 Difference]: With dead ends: 4045 [2023-11-19 08:07:01,845 INFO L226 Difference]: Without dead ends: 4042 [2023-11-19 08:07:01,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:07:01,854 INFO L413 NwaCegarLoop]: 1970 mSDtfsCounter, 4628 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 1909 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4864 SdHoareTripleChecker+Valid, 3265 SdHoareTripleChecker+Invalid, 3161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1909 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:07:01,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4864 Valid, 3265 Invalid, 3161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1909 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-19 08:07:01,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4042 states. [2023-11-19 08:07:02,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4042 to 3413. [2023-11-19 08:07:02,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3413 states, 2445 states have (on average 1.3824130879345604) internal successors, (3380), 2510 states have internal predecessors, (3380), 794 states have call successors, (794), 174 states have call predecessors, (794), 173 states have return successors, (792), 768 states have call predecessors, (792), 792 states have call successors, (792) [2023-11-19 08:07:02,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3413 states to 3413 states and 4966 transitions. [2023-11-19 08:07:02,147 INFO L78 Accepts]: Start accepts. Automaton has 3413 states and 4966 transitions. Word has length 179 [2023-11-19 08:07:02,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:07:02,150 INFO L495 AbstractCegarLoop]: Abstraction has 3413 states and 4966 transitions. [2023-11-19 08:07:02,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 08:07:02,150 INFO L276 IsEmpty]: Start isEmpty. Operand 3413 states and 4966 transitions. [2023-11-19 08:07:02,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-11-19 08:07:02,157 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:07:02,158 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:07:02,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:07:02,158 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:07:02,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:02,159 INFO L85 PathProgramCache]: Analyzing trace with hash 30208838, now seen corresponding path program 1 times [2023-11-19 08:07:02,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:07:02,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229695159] [2023-11-19 08:07:02,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:02,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:07:02,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:07:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:07:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:07:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 08:07:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:07:02,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:07:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 08:07:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:07:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:07:02,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 08:07:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:07:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:07:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-19 08:07:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:07:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-19 08:07:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:07:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-19 08:07:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:07:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-19 08:07:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:07:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-19 08:07:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:07:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-19 08:07:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:07:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-19 08:07:02,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:07:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-19 08:07:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:07:02,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:07:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:02,992 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2023-11-19 08:07:02,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:07:02,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229695159] [2023-11-19 08:07:02,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229695159] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:07:02,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:07:02,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 08:07:02,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713179628] [2023-11-19 08:07:02,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:07:02,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:07:02,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:07:02,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:07:02,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:07:02,995 INFO L87 Difference]: Start difference. First operand 3413 states and 4966 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15)