./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--mos7840.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_db129446-2bf3-4d4a-a4cd-ae073c978684/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db129446-2bf3-4d4a-a4cd-ae073c978684/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_db129446-2bf3-4d4a-a4cd-ae073c978684/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db129446-2bf3-4d4a-a4cd-ae073c978684/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--mos7840.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db129446-2bf3-4d4a-a4cd-ae073c978684/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_db129446-2bf3-4d4a-a4cd-ae073c978684/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 c1586642bef6980141a60942369684a3359f9fff4af003e79a9c46b72c273d5b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:22:22,997 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:22:23,128 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db129446-2bf3-4d4a-a4cd-ae073c978684/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:22:23,138 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:22:23,139 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:22:23,181 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:22:23,182 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:22:23,183 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:22:23,184 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:22:23,189 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:22:23,190 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:22:23,191 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:22:23,191 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:22:23,193 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:22:23,194 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:22:23,194 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:22:23,195 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:22:23,195 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:22:23,195 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:22:23,196 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:22:23,196 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:22:23,197 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:22:23,198 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:22:23,200 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:22:23,200 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:22:23,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:22:23,201 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:22:23,202 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:22:23,202 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:22:23,203 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:22:23,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:22:23,204 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:22:23,205 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:22:23,205 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:22:23,205 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:22:23,206 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:22:23,206 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_db129446-2bf3-4d4a-a4cd-ae073c978684/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db129446-2bf3-4d4a-a4cd-ae073c978684/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1586642bef6980141a60942369684a3359f9fff4af003e79a9c46b72c273d5b [2023-11-12 02:22:23,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:22:23,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:22:23,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:22:23,525 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:22:23,526 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:22:23,527 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db129446-2bf3-4d4a-a4cd-ae073c978684/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--mos7840.ko-entry_point.cil.out.i [2023-11-12 02:22:26,906 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:22:27,516 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:22:27,517 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db129446-2bf3-4d4a-a4cd-ae073c978684/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--mos7840.ko-entry_point.cil.out.i [2023-11-12 02:22:27,566 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db129446-2bf3-4d4a-a4cd-ae073c978684/bin/uautomizer-verify-uTZkv6EMXl/data/218b7180b/b44452c64cb845f58aa1b3bb3226b891/FLAGd38c074bc [2023-11-12 02:22:27,588 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db129446-2bf3-4d4a-a4cd-ae073c978684/bin/uautomizer-verify-uTZkv6EMXl/data/218b7180b/b44452c64cb845f58aa1b3bb3226b891 [2023-11-12 02:22:27,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:22:27,595 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:22:27,596 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:22:27,597 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:22:27,602 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:22:27,603 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:22:27" (1/1) ... [2023-11-12 02:22:27,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43d7f38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:27, skipping insertion in model container [2023-11-12 02:22:27,604 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:22:27" (1/1) ... [2023-11-12 02:22:27,783 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:22:29,922 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_db129446-2bf3-4d4a-a4cd-ae073c978684/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--mos7840.ko-entry_point.cil.out.i[297800,297813] [2023-11-12 02:22:29,999 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:22:30,056 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:22:30,168 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [3946] [2023-11-12 02:22:30,170 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3953] [2023-11-12 02:22:30,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3962-3963] [2023-11-12 02:22:30,555 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_db129446-2bf3-4d4a-a4cd-ae073c978684/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--mos7840.ko-entry_point.cil.out.i[297800,297813] [2023-11-12 02:22:30,561 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:22:30,687 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:22:30,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:30 WrapperNode [2023-11-12 02:22:30,688 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:22:30,689 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:22:30,690 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:22:30,690 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:22:30,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:30" (1/1) ... [2023-11-12 02:22:30,835 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:30" (1/1) ... [2023-11-12 02:22:31,143 INFO L138 Inliner]: procedures = 191, calls = 4823, calls flagged for inlining = 80, calls inlined = 67, statements flattened = 8234 [2023-11-12 02:22:31,144 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:22:31,145 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:22:31,146 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:22:31,147 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:22:31,159 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:30" (1/1) ... [2023-11-12 02:22:31,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:30" (1/1) ... [2023-11-12 02:22:31,236 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:30" (1/1) ... [2023-11-12 02:22:31,236 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:30" (1/1) ... [2023-11-12 02:22:31,408 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:30" (1/1) ... [2023-11-12 02:22:31,531 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:30" (1/1) ... [2023-11-12 02:22:31,567 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:30" (1/1) ... [2023-11-12 02:22:31,605 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:30" (1/1) ... [2023-11-12 02:22:31,704 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:22:31,706 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:22:31,706 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:22:31,706 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:22:31,707 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:30" (1/1) ... [2023-11-12 02:22:31,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:22:31,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db129446-2bf3-4d4a-a4cd-ae073c978684/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:31,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db129446-2bf3-4d4a-a4cd-ae073c978684/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:22:31,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db129446-2bf3-4d4a-a4cd-ae073c978684/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:22:31,800 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_port_probe [2023-11-12 02:22:31,801 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_port_probe [2023-11-12 02:22:31,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 02:22:31,801 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_get_reg_sync [2023-11-12 02:22:31,801 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_get_reg_sync [2023-11-12 02:22:31,801 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2023-11-12 02:22:31,802 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2023-11-12 02:22:31,802 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_set_reg_sync [2023-11-12 02:22:31,802 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_set_reg_sync [2023-11-12 02:22:31,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 02:22:31,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 02:22:31,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 02:22:31,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 02:22:31,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:22:31,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 02:22:31,803 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 02:22:31,803 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_write [2023-11-12 02:22:31,803 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_write [2023-11-12 02:22:31,803 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-12 02:22:31,803 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-12 02:22:31,804 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_ioctl [2023-11-12 02:22:31,804 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_ioctl [2023-11-12 02:22:31,804 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_tiocmiwait [2023-11-12 02:22:31,804 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_tiocmiwait [2023-11-12 02:22:31,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-12 02:22:31,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-12 02:22:31,805 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2023-11-12 02:22:31,805 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2023-11-12 02:22:31,805 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-12 02:22:31,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-12 02:22:31,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 02:22:31,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 02:22:31,805 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_get_port_private [2023-11-12 02:22:31,806 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_get_port_private [2023-11-12 02:22:31,806 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-12 02:22:31,806 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-12 02:22:31,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-12 02:22:31,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-12 02:22:31,806 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2023-11-12 02:22:31,806 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2023-11-12 02:22:31,806 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_get_uart_reg [2023-11-12 02:22:31,807 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_get_uart_reg [2023-11-12 02:22:31,807 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2023-11-12 02:22:31,807 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2023-11-12 02:22:31,807 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 02:22:31,807 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 02:22:31,807 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2023-11-12 02:22:31,807 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2023-11-12 02:22:31,807 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_get_usb_serial [2023-11-12 02:22:31,808 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_get_usb_serial [2023-11-12 02:22:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_get_icount [2023-11-12 02:22:31,808 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_get_icount [2023-11-12 02:22:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:22:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_set_led_async [2023-11-12 02:22:31,808 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_set_led_async [2023-11-12 02:22:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-12 02:22:31,809 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-12 02:22:31,809 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-12 02:22:31,809 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-12 02:22:31,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 02:22:31,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 02:22:31,809 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-12 02:22:31,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-12 02:22:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-12 02:22:31,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-12 02:22:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_set_termios [2023-11-12 02:22:31,810 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_set_termios [2023-11-12 02:22:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 02:22:31,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 02:22:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_set_led_sync [2023-11-12 02:22:31,810 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_set_led_sync [2023-11-12 02:22:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_3 [2023-11-12 02:22:31,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_3 [2023-11-12 02:22:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 02:22:31,811 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 02:22:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-12 02:22:31,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-12 02:22:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:22:31,811 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:22:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_chars_in_buffer [2023-11-12 02:22:31,812 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_chars_in_buffer [2023-11-12 02:22:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:22:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2023-11-12 02:22:31,812 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2023-11-12 02:22:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_throttle [2023-11-12 02:22:31,812 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_throttle [2023-11-12 02:22:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-12 02:22:31,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-12 02:22:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:22:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2023-11-12 02:22:31,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2023-11-12 02:22:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2023-11-12 02:22:31,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2023-11-12 02:22:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:22:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:22:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2023-11-12 02:22:31,814 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2023-11-12 02:22:31,814 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit_lock [2023-11-12 02:22:31,814 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit_lock [2023-11-12 02:22:31,814 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_set_uart_reg [2023-11-12 02:22:31,814 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_set_uart_reg [2023-11-12 02:22:31,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:22:31,814 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-12 02:22:31,814 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-12 02:22:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-12 02:22:31,815 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-12 02:22:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-12 02:22:31,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-12 02:22:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-12 02:22:31,815 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-12 02:22:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_port_paranoia_check [2023-11-12 02:22:31,816 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_port_paranoia_check [2023-11-12 02:22:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_serial_paranoia_check [2023-11-12 02:22:31,816 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_serial_paranoia_check [2023-11-12 02:22:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-12 02:22:31,816 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-12 02:22:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_led_activity [2023-11-12 02:22:31,816 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_led_activity [2023-11-12 02:22:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_bulk_in_callback [2023-11-12 02:22:31,816 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_bulk_in_callback [2023-11-12 02:22:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_write_room [2023-11-12 02:22:31,817 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_write_room [2023-11-12 02:22:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:22:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:22:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_calc_num_ports [2023-11-12 02:22:31,817 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_calc_num_ports [2023-11-12 02:22:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_break [2023-11-12 02:22:31,817 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_break [2023-11-12 02:22:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_tiocmset [2023-11-12 02:22:31,818 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_tiocmset [2023-11-12 02:22:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_tiocmget [2023-11-12 02:22:31,818 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_tiocmget [2023-11-12 02:22:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-12 02:22:31,818 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-12 02:22:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-12 02:22:31,818 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-12 02:22:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_set_port_private [2023-11-12 02:22:31,819 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_set_port_private [2023-11-12 02:22:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_unthrottle [2023-11-12 02:22:31,819 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_unthrottle [2023-11-12 02:22:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-12 02:22:31,819 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-12 02:22:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:22:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2023-11-12 02:22:31,820 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2023-11-12 02:22:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_data [2023-11-12 02:22:31,820 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_data [2023-11-12 02:22:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_port_remove [2023-11-12 02:22:31,820 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_port_remove [2023-11-12 02:22:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 02:22:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:22:31,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:22:32,563 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:22:32,566 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:22:34,978 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 02:22:44,831 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:22:44,859 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:22:44,860 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:22:44,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:22:44 BoogieIcfgContainer [2023-11-12 02:22:44,868 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:22:44,871 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:22:44,872 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:22:44,880 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:22:44,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:22:27" (1/3) ... [2023-11-12 02:22:44,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b18682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:22:44, skipping insertion in model container [2023-11-12 02:22:44,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:30" (2/3) ... [2023-11-12 02:22:44,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b18682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:22:44, skipping insertion in model container [2023-11-12 02:22:44,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:22:44" (3/3) ... [2023-11-12 02:22:44,886 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--mos7840.ko-entry_point.cil.out.i [2023-11-12 02:22:44,905 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:22:44,906 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:22:45,021 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:22:45,028 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;@14279534, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:22:45,029 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:22:45,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 2069 states, 1456 states have (on average 1.4285714285714286) internal successors, (2080), 1549 states have internal predecessors, (2080), 544 states have call successors, (544), 68 states have call predecessors, (544), 67 states have return successors, (539), 512 states have call predecessors, (539), 539 states have call successors, (539) [2023-11-12 02:22:45,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-12 02:22:45,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:45,078 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, 1, 1, 1] [2023-11-12 02:22:45,079 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:45,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:45,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1924373879, now seen corresponding path program 1 times [2023-11-12 02:22:45,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:45,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221888425] [2023-11-12 02:22:45,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:45,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:22:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:22:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:22:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:22:48,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:22:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:22:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:22:48,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:22:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:22:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-12 02:22:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:22:48,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:22:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-12 02:22:48,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:22:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-12 02:22:48,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:22:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-12 02:22:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:22:48,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-12 02:22:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:22:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-12 02:22:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:22:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-12 02:22:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:22:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-12 02:22:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:22:48,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:48,429 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 02:22:48,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:48,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221888425] [2023-11-12 02:22:48,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221888425] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:48,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:48,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:22:48,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286380381] [2023-11-12 02:22:48,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:48,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:22:48,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:48,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:22:48,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:22:48,490 INFO L87 Difference]: Start difference. First operand has 2069 states, 1456 states have (on average 1.4285714285714286) internal successors, (2080), 1549 states have internal predecessors, (2080), 544 states have call successors, (544), 68 states have call predecessors, (544), 67 states have return successors, (539), 512 states have call predecessors, (539), 539 states have call successors, (539) Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-12 02:23:09,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:09,781 INFO L93 Difference]: Finished difference Result 4523 states and 7078 transitions. [2023-11-12 02:23:09,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:23:09,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 162 [2023-11-12 02:23:09,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:09,832 INFO L225 Difference]: With dead ends: 4523 [2023-11-12 02:23:09,832 INFO L226 Difference]: Without dead ends: 2432 [2023-11-12 02:23:09,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:23:09,858 INFO L413 NwaCegarLoop]: 2753 mSDtfsCounter, 1046 mSDsluCounter, 6458 mSDsCounter, 0 mSdLazyCounter, 4032 mSolverCounterSat, 1256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 9211 SdHoareTripleChecker+Invalid, 5288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1256 IncrementalHoareTripleChecker+Valid, 4032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:09,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1091 Valid, 9211 Invalid, 5288 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1256 Valid, 4032 Invalid, 0 Unknown, 0 Unchecked, 20.7s Time] [2023-11-12 02:23:09,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2432 states. [2023-11-12 02:23:10,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2432 to 2197. [2023-11-12 02:23:10,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2197 states, 1557 states have (on average 1.4065510597302504) internal successors, (2190), 1652 states have internal predecessors, (2190), 558 states have call successors, (558), 82 states have call predecessors, (558), 81 states have return successors, (557), 524 states have call predecessors, (557), 557 states have call successors, (557) [2023-11-12 02:23:10,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2197 states to 2197 states and 3305 transitions. [2023-11-12 02:23:10,142 INFO L78 Accepts]: Start accepts. Automaton has 2197 states and 3305 transitions. Word has length 162 [2023-11-12 02:23:10,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:23:10,143 INFO L495 AbstractCegarLoop]: Abstraction has 2197 states and 3305 transitions. [2023-11-12 02:23:10,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-12 02:23:10,144 INFO L276 IsEmpty]: Start isEmpty. Operand 2197 states and 3305 transitions. [2023-11-12 02:23:10,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-12 02:23:10,158 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:10,158 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:10,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:23:10,159 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:23:10,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:10,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1515055763, now seen corresponding path program 1 times [2023-11-12 02:23:10,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:10,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952852738] [2023-11-12 02:23:10,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:10,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:11,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:12,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:23:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:12,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:23:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:12,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:23:12,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:12,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:23:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:12,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:23:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:12,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:23:12,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:12,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:23:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:12,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:23:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:12,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:23:12,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:12,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-12 02:23:12,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:12,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:23:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:12,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:23:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:12,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-12 02:23:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:12,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:23:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:12,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-12 02:23:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:12,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:23:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:12,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-12 02:23:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:12,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:23:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:12,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-12 02:23:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:12,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:23:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:13,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-12 02:23:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:13,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:23:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:13,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-12 02:23:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:13,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:23:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:13,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-12 02:23:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:13,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:23:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:13,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-12 02:23:13,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:13,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-12 02:23:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:13,123 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 02:23:13,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:13,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952852738] [2023-11-12 02:23:13,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952852738] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:13,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:13,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:23:13,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214935311] [2023-11-12 02:23:13,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:13,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:23:13,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:13,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:23:13,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:23:13,141 INFO L87 Difference]: Start difference. First operand 2197 states and 3305 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16)