./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 cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cbabbb0-4ea1-4adb-8200-4b98abb08896/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cbabbb0-4ea1-4adb-8200-4b98abb08896/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cbabbb0-4ea1-4adb-8200-4b98abb08896/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cbabbb0-4ea1-4adb-8200-4b98abb08896/bin/uautomizer-verify-uTZkv6EMXl/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_9cbabbb0-4ea1-4adb-8200-4b98abb08896/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cbabbb0-4ea1-4adb-8200-4b98abb08896/bin/uautomizer-verify-uTZkv6EMXl --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-cf1a783 [2023-11-12 02:28:04,230 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:28:04,304 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cbabbb0-4ea1-4adb-8200-4b98abb08896/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:28:04,310 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:28:04,310 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:28:04,337 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:28:04,337 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:28:04,338 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:28:04,339 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:28:04,339 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:28:04,340 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:28:04,341 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:28:04,341 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:28:04,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:28:04,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:28:04,343 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:28:04,343 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:28:04,343 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:28:04,344 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:28:04,344 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:28:04,345 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:28:04,345 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:28:04,346 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:28:04,346 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:28:04,347 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:28:04,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:28:04,348 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:28:04,348 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:28:04,348 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:28:04,349 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:28:04,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:28:04,349 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:28:04,357 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:28:04,357 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:28:04,358 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:28:04,358 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:28:04,359 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_9cbabbb0-4ea1-4adb-8200-4b98abb08896/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cbabbb0-4ea1-4adb-8200-4b98abb08896/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7252c0ad173c04e7e814a901053190b8d4e6b601847082c3bd48f0637286d7b [2023-11-12 02:28:04,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:28:04,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:28:04,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:28:04,688 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:28:04,689 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:28:04,691 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cbabbb0-4ea1-4adb-8200-4b98abb08896/bin/uautomizer-verify-uTZkv6EMXl/../../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 [2023-11-12 02:28:07,795 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:28:08,335 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:28:08,336 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cbabbb0-4ea1-4adb-8200-4b98abb08896/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 [2023-11-12 02:28:08,393 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cbabbb0-4ea1-4adb-8200-4b98abb08896/bin/uautomizer-verify-uTZkv6EMXl/data/3532511f4/3c2c4ec956cd4d07aea7d310f00384d0/FLAGe9e3d5613 [2023-11-12 02:28:08,414 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cbabbb0-4ea1-4adb-8200-4b98abb08896/bin/uautomizer-verify-uTZkv6EMXl/data/3532511f4/3c2c4ec956cd4d07aea7d310f00384d0 [2023-11-12 02:28:08,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:28:08,422 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:28:08,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:28:08,426 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:28:08,432 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:28:08,435 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:28:08" (1/1) ... [2023-11-12 02:28:08,436 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@406907a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:08, skipping insertion in model container [2023-11-12 02:28:08,437 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:28:08" (1/1) ... [2023-11-12 02:28:08,687 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:28:10,781 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_9cbabbb0-4ea1-4adb-8200-4b98abb08896/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] [2023-11-12 02:28:10,935 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:28:10,986 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:28:11,193 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] [2023-11-12 02:28:11,196 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [4254] [2023-11-12 02:28:11,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [4621] [2023-11-12 02:28:11,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [5086] [2023-11-12 02:28:11,424 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_9cbabbb0-4ea1-4adb-8200-4b98abb08896/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] [2023-11-12 02:28:11,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:28:11,551 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:28:11,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:11 WrapperNode [2023-11-12 02:28:11,552 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:28:11,553 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:28:11,554 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:28:11,554 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:28:11,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:11" (1/1) ... [2023-11-12 02:28:11,679 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:11" (1/1) ... [2023-11-12 02:28:11,948 INFO L138 Inliner]: procedures = 259, calls = 2833, calls flagged for inlining = 87, calls inlined = 83, statements flattened = 5537 [2023-11-12 02:28:11,949 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:28:11,950 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:28:11,950 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:28:11,950 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:28:11,959 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:11" (1/1) ... [2023-11-12 02:28:11,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:11" (1/1) ... [2023-11-12 02:28:12,013 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:11" (1/1) ... [2023-11-12 02:28:12,028 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:11" (1/1) ... [2023-11-12 02:28:12,252 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:11" (1/1) ... [2023-11-12 02:28:12,312 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:11" (1/1) ... [2023-11-12 02:28:12,349 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:11" (1/1) ... [2023-11-12 02:28:12,380 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:11" (1/1) ... [2023-11-12 02:28:12,439 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:28:12,440 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:28:12,440 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:28:12,441 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:28:12,442 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:11" (1/1) ... [2023-11-12 02:28:12,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:28:12,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cbabbb0-4ea1-4adb-8200-4b98abb08896/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:12,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cbabbb0-4ea1-4adb-8200-4b98abb08896/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:12,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cbabbb0-4ea1-4adb-8200-4b98abb08896/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:28:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure gr_free_dma_desc_chain [2023-11-12 02:28:12,529 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_free_dma_desc_chain [2023-11-12 02:28:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure gr_finish_request [2023-11-12 02:28:12,529 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_finish_request [2023-11-12 02:28:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 02:28:12,530 INFO L130 BoogieDeclarations]: Found specification of procedure gr_queue [2023-11-12 02:28:12,530 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_queue [2023-11-12 02:28:12,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 02:28:12,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 02:28:12,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 02:28:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2023-11-12 02:28:12,532 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_puts [2023-11-12 02:28:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 02:28:12,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 02:28:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_halt_wedge [2023-11-12 02:28:12,533 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_halt_wedge [2023-11-12 02:28:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 02:28:12,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 02:28:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-12 02:28:12,533 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-12 02:28:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure usb_speed_string [2023-11-12 02:28:12,534 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_speed_string [2023-11-12 02:28:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure gr_control_stall [2023-11-12 02:28:12,534 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_control_stall [2023-11-12 02:28:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2023-11-12 02:28:12,535 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2023-11-12 02:28:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure gr_stop_activity [2023-11-12 02:28:12,535 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_stop_activity [2023-11-12 02:28:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 02:28:12,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 02:28:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_enable [2023-11-12 02:28:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_enable [2023-11-12 02:28:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure gr_set_halt_wedge [2023-11-12 02:28:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_set_halt_wedge [2023-11-12 02:28:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 02:28:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 02:28:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2023-11-12 02:28:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2023-11-12 02:28:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:28:12,539 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:28:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-12 02:28:12,539 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-12 02:28:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure gr_queue_int [2023-11-12 02:28:12,539 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_queue_int [2023-11-12 02:28:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:28:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-12 02:28:12,540 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-12 02:28:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dequeue [2023-11-12 02:28:12,540 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dequeue [2023-11-12 02:28:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_remove [2023-11-12 02:28:12,540 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_remove [2023-11-12 02:28:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32be [2023-11-12 02:28:12,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32be [2023-11-12 02:28:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2023-11-12 02:28:12,541 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2023-11-12 02:28:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:28:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 02:28:12,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 02:28:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_setup [2023-11-12 02:28:12,542 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_setup [2023-11-12 02:28:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-12 02:28:12,542 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-12 02:28:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:28:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:28:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure gr_alloc_request [2023-11-12 02:28:12,543 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_alloc_request [2023-11-12 02:28:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure gr_wakeup [2023-11-12 02:28:12,544 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_wakeup [2023-11-12 02:28:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2023-11-12 02:28:12,545 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2023-11-12 02:28:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_reset [2023-11-12 02:28:12,545 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_reset [2023-11-12 02:28:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-12 02:28:12,546 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-12 02:28:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure gr_udc_stop [2023-11-12 02:28:12,547 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_udc_stop [2023-11-12 02:28:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-12 02:28:12,547 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-12 02:28:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_nuke [2023-11-12 02:28:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_nuke [2023-11-12 02:28:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure gr_fifo_flush [2023-11-12 02:28:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_fifo_flush [2023-11-12 02:28:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_disable [2023-11-12 02:28:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_disable [2023-11-12 02:28:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-12 02:28:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-12 02:28:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0out_requeue [2023-11-12 02:28:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0out_requeue [2023-11-12 02:28:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure gr_vbus_connected [2023-11-12 02:28:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_vbus_connected [2023-11-12 02:28:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure gr_enable_vbus_detect [2023-11-12 02:28:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_enable_vbus_detect [2023-11-12 02:28:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 02:28:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-12 02:28:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-12 02:28:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 02:28:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure gr_irq_handler [2023-11-12 02:28:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_irq_handler [2023-11-12 02:28:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-12 02:28:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-12 02:28:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure gr_set_wedge [2023-11-12 02:28:12,552 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_set_wedge [2023-11-12 02:28:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_threaded_irq [2023-11-12 02:28:12,552 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_threaded_irq [2023-11-12 02:28:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dfs_open [2023-11-12 02:28:12,552 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dfs_open [2023-11-12 02:28:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32be [2023-11-12 02:28:12,552 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32be [2023-11-12 02:28:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_respond_empty [2023-11-12 02:28:12,553 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_respond_empty [2023-11-12 02:28:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:28:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure gr_irq [2023-11-12 02:28:12,553 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_irq [2023-11-12 02:28:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_init [2023-11-12 02:28:12,554 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_init [2023-11-12 02:28:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2023-11-12 02:28:12,555 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2023-11-12 02:28:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-12 02:28:12,555 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-12 02:28:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_respond [2023-11-12 02:28:12,556 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_respond [2023-11-12 02:28:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:28:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-12 02:28:12,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-12 02:28:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2023-11-12 02:28:12,557 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2023-11-12 02:28:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure gr_disable_interrupts_and_pullup [2023-11-12 02:28:12,557 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_disable_interrupts_and_pullup [2023-11-12 02:28:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 02:28:12,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 02:28:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-12 02:28:12,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-12 02:28:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:28:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure gr_request_irq [2023-11-12 02:28:12,558 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_request_irq [2023-11-12 02:28:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure gr_add_dma_desc [2023-11-12 02:28:12,558 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_add_dma_desc [2023-11-12 02:28:12,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-12 02:28:12,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-12 02:28:12,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:28:12,560 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_state [2023-11-12 02:28:12,560 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_state [2023-11-12 02:28:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure gr_abort_dma [2023-11-12 02:28:12,561 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_abort_dma [2023-11-12 02:28:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:28:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0state_string [2023-11-12 02:28:12,561 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0state_string [2023-11-12 02:28:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-12 02:28:12,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-12 02:28:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure gr_fifo_status [2023-11-12 02:28:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_fifo_status [2023-11-12 02:28:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 02:28:12,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 02:28:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2023-11-12 02:28:12,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2023-11-12 02:28:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure gr_set_address [2023-11-12 02:28:12,569 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_set_address [2023-11-12 02:28:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dbgprint_request [2023-11-12 02:28:12,571 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dbgprint_request [2023-11-12 02:28:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure gr_free_request [2023-11-12 02:28:12,571 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_free_request [2023-11-12 02:28:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure gr_udc_start [2023-11-12 02:28:12,576 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_udc_start [2023-11-12 02:28:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure gr_set_ep0state [2023-11-12 02:28:12,576 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_set_ep0state [2023-11-12 02:28:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2023-11-12 02:28:12,576 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2023-11-12 02:28:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dma_advance [2023-11-12 02:28:12,577 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dma_advance [2023-11-12 02:28:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2023-11-12 02:28:12,577 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2023-11-12 02:28:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure of_property_read_u32_index [2023-11-12 02:28:12,577 INFO L138 BoogieDeclarations]: Found implementation of procedure of_property_read_u32_index [2023-11-12 02:28:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure gr_get_frame [2023-11-12 02:28:12,577 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_get_frame [2023-11-12 02:28:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure gr_probe [2023-11-12 02:28:12,578 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_probe [2023-11-12 02:28:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_set_maxpacket_limit [2023-11-12 02:28:12,578 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_set_maxpacket_limit [2023-11-12 02:28:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure gr_remove [2023-11-12 02:28:12,578 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_remove [2023-11-12 02:28:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_respond_u16 [2023-11-12 02:28:12,579 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_respond_u16 [2023-11-12 02:28:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-12 02:28:12,579 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-12 02:28:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-12 02:28:12,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-12 02:28:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:28:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure gr_start_dma [2023-11-12 02:28:12,579 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_start_dma [2023-11-12 02:28:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:28:12,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:28:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-12 02:28:12,580 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-12 02:28:13,351 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:28:13,356 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:28:14,779 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 02:28:19,491 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:28:19,525 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:28:19,525 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:28:19,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:28:19 BoogieIcfgContainer [2023-11-12 02:28:19,531 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:28:19,536 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:28:19,536 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:28:19,540 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:28:19,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:28:08" (1/3) ... [2023-11-12 02:28:19,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e99266b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:28:19, skipping insertion in model container [2023-11-12 02:28:19,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:11" (2/3) ... [2023-11-12 02:28:19,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e99266b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:28:19, skipping insertion in model container [2023-11-12 02:28:19,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:28:19" (3/3) ... [2023-11-12 02:28:19,545 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 [2023-11-12 02:28:19,567 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:28:19,568 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:28:19,690 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:28:19,698 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;@7f7fa3a0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:28:19,699 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:28:19,711 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) [2023-11-12 02:28:19,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-12 02:28:19,748 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:28:19,749 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] [2023-11-12 02:28:19,750 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:28:19,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:19,758 INFO L85 PathProgramCache]: Analyzing trace with hash -834052582, now seen corresponding path program 1 times [2023-11-12 02:28:19,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:19,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071431778] [2023-11-12 02:28:19,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:19,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:28:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:28:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:28:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:28:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:28:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:28:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-12 02:28:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:28:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:21,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-12 02:28:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:21,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:21,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-12 02:28:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:21,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:21,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:21,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-12 02:28:21,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:21,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:21,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-12 02:28:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:21,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:21,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:21,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-12 02:28:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:21,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:21,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:21,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-12 02:28:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:21,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:21,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-12 02:28:21,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:21,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:21,323 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2023-11-12 02:28:21,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:21,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071431778] [2023-11-12 02:28:21,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071431778] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:21,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:21,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:28:21,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771935521] [2023-11-12 02:28:21,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:21,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:28:21,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:21,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:28:21,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:28:21,387 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) [2023-11-12 02:28:26,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:28:26,457 INFO L93 Difference]: Finished difference Result 3823 states and 5785 transitions. [2023-11-12 02:28:26,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:28:26,462 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 [2023-11-12 02:28:26,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:28:26,510 INFO L225 Difference]: With dead ends: 3823 [2023-11-12 02:28:26,511 INFO L226 Difference]: Without dead ends: 2054 [2023-11-12 02:28:26,533 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 [2023-11-12 02:28:26,537 INFO L413 NwaCegarLoop]: 2017 mSDtfsCounter, 2223 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 1668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2256 SdHoareTripleChecker+Valid, 3324 SdHoareTripleChecker+Invalid, 2887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1668 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:28:26,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2256 Valid, 3324 Invalid, 2887 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1668 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-12 02:28:26,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2054 states. [2023-11-12 02:28:26,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2054 to 1738. [2023-11-12 02:28:26,742 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) [2023-11-12 02:28:26,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 2526 transitions. [2023-11-12 02:28:26,765 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 2526 transitions. Word has length 159 [2023-11-12 02:28:26,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:28:26,765 INFO L495 AbstractCegarLoop]: Abstraction has 1738 states and 2526 transitions. [2023-11-12 02:28:26,766 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) [2023-11-12 02:28:26,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 2526 transitions. [2023-11-12 02:28:26,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-12 02:28:26,772 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:28:26,773 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] [2023-11-12 02:28:26,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:28:26,773 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:28:26,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:26,774 INFO L85 PathProgramCache]: Analyzing trace with hash 754972946, now seen corresponding path program 1 times [2023-11-12 02:28:26,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:26,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779010356] [2023-11-12 02:28:26,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:26,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:28:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:28:27,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:28:27,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:28:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:28:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:28:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-12 02:28:27,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:28:27,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-12 02:28:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-12 02:28:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-12 02:28:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-12 02:28:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-12 02:28:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-12 02:28:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-12 02:28:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:27,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:27,732 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2023-11-12 02:28:27,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:27,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779010356] [2023-11-12 02:28:27,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779010356] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:27,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:27,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:28:27,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006990411] [2023-11-12 02:28:27,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:27,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:28:27,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:27,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:28:27,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:28:27,736 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) [2023-11-12 02:28:37,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:28:37,116 INFO L93 Difference]: Finished difference Result 5751 states and 8496 transitions. [2023-11-12 02:28:37,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:28:37,117 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 [2023-11-12 02:28:37,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:28:37,154 INFO L225 Difference]: With dead ends: 5751 [2023-11-12 02:28:37,154 INFO L226 Difference]: Without dead ends: 4043 [2023-11-12 02:28:37,168 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 [2023-11-12 02:28:37,172 INFO L413 NwaCegarLoop]: 1955 mSDtfsCounter, 6784 mSDsluCounter, 3079 mSDsCounter, 0 mSdLazyCounter, 2058 mSolverCounterSat, 3504 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7053 SdHoareTripleChecker+Valid, 5034 SdHoareTripleChecker+Invalid, 5562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3504 IncrementalHoareTripleChecker+Valid, 2058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:28:37,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7053 Valid, 5034 Invalid, 5562 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3504 Valid, 2058 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2023-11-12 02:28:37,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4043 states. [2023-11-12 02:28:37,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4043 to 3414. [2023-11-12 02:28:37,383 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) [2023-11-12 02:28:37,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3414 states to 3414 states and 4968 transitions. [2023-11-12 02:28:37,412 INFO L78 Accepts]: Start accepts. Automaton has 3414 states and 4968 transitions. Word has length 159 [2023-11-12 02:28:37,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:28:37,416 INFO L495 AbstractCegarLoop]: Abstraction has 3414 states and 4968 transitions. [2023-11-12 02:28:37,416 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) [2023-11-12 02:28:37,416 INFO L276 IsEmpty]: Start isEmpty. Operand 3414 states and 4968 transitions. [2023-11-12 02:28:37,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-12 02:28:37,425 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:28:37,426 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] [2023-11-12 02:28:37,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:28:37,426 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:28:37,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:37,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1802109547, now seen corresponding path program 1 times [2023-11-12 02:28:37,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:37,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011789567] [2023-11-12 02:28:37,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:37,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:28:38,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:28:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:28:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:38,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:28:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:28:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:28:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-12 02:28:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:28:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-12 02:28:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-12 02:28:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-12 02:28:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-12 02:28:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-12 02:28:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-12 02:28:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-12 02:28:38,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-12 02:28:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:28:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:38,547 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2023-11-12 02:28:38,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:38,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011789567] [2023-11-12 02:28:38,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011789567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:38,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:38,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:28:38,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894996023] [2023-11-12 02:28:38,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:38,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:28:38,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:38,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:28:38,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:28:38,551 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) [2023-11-12 02:28:44,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:28:44,282 INFO L93 Difference]: Finished difference Result 4045 states and 6009 transitions. [2023-11-12 02:28:44,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:28:44,283 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 [2023-11-12 02:28:44,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:28:44,318 INFO L225 Difference]: With dead ends: 4045 [2023-11-12 02:28:44,319 INFO L226 Difference]: Without dead ends: 4042 [2023-11-12 02:28:44,322 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 [2023-11-12 02:28:44,323 INFO L413 NwaCegarLoop]: 1965 mSDtfsCounter, 4635 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 1248 mSolverCounterSat, 1923 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4871 SdHoareTripleChecker+Valid, 3257 SdHoareTripleChecker+Invalid, 3171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1923 IncrementalHoareTripleChecker+Valid, 1248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:28:44,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4871 Valid, 3257 Invalid, 3171 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1923 Valid, 1248 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-11-12 02:28:44,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4042 states. [2023-11-12 02:28:44,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4042 to 3413. [2023-11-12 02:28:44,558 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) [2023-11-12 02:28:44,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3413 states to 3413 states and 4966 transitions. [2023-11-12 02:28:44,584 INFO L78 Accepts]: Start accepts. Automaton has 3413 states and 4966 transitions. Word has length 179 [2023-11-12 02:28:44,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:28:44,585 INFO L495 AbstractCegarLoop]: Abstraction has 3413 states and 4966 transitions. [2023-11-12 02:28:44,586 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) [2023-11-12 02:28:44,586 INFO L276 IsEmpty]: Start isEmpty. Operand 3413 states and 4966 transitions. [2023-11-12 02:28:44,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-11-12 02:28:44,593 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:28:44,593 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] [2023-11-12 02:28:44,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:28:44,594 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:28:44,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:44,595 INFO L85 PathProgramCache]: Analyzing trace with hash 30208838, now seen corresponding path program 1 times [2023-11-12 02:28:44,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:44,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018849419] [2023-11-12 02:28:44,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:44,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:28:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:45,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:28:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:28:45,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:45,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:28:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:28:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:45,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:28:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-12 02:28:45,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:28:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-12 02:28:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:45,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-12 02:28:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-12 02:28:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-12 02:28:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:45,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-12 02:28:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-12 02:28:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-12 02:28:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:45,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-12 02:28:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:28:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,770 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2023-11-12 02:28:45,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:45,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018849419] [2023-11-12 02:28:45,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018849419] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:45,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:45,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:28:45,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191317159] [2023-11-12 02:28:45,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:45,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:28:45,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:45,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:28:45,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:28:45,776 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)