./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ddv-machzwd/ddv_machzwd_all.i --full-output --preprocessor.use.memory.slicer false --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6ae2ee47 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ddv-machzwd/ddv_machzwd_all.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 32bit --witnessprinter.graph.data.programhash a564ea576763c13bfd3673da7d9fb82b1799f9ec9208539e745949eb812373cd --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 21:01:10,271 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 21:01:10,336 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-22 21:01:10,340 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 21:01:10,341 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 21:01:10,364 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 21:01:10,365 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 21:01:10,365 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 21:01:10,366 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 21:01:10,370 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 21:01:10,370 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 21:01:10,370 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 21:01:10,371 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 21:01:10,372 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 21:01:10,372 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 21:01:10,372 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 21:01:10,373 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 21:01:10,373 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-22 21:01:10,373 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 21:01:10,373 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-22 21:01:10,373 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 21:01:10,375 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 21:01:10,375 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 21:01:10,375 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 21:01:10,375 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-22 21:01:10,375 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 21:01:10,376 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 21:01:10,376 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 21:01:10,376 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 21:01:10,376 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 21:01:10,377 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 21:01:10,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 21:01:10,378 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 21:01:10,378 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 21:01:10,378 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 21:01:10,378 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 21:01:10,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 21:01:10,378 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 21:01:10,379 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 21:01:10,379 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 21:01:10,379 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 21:01:10,379 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 21:01:10,380 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a564ea576763c13bfd3673da7d9fb82b1799f9ec9208539e745949eb812373cd Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-22 21:01:10,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 21:01:10,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 21:01:10,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 21:01:10,640 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 21:01:10,640 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 21:01:10,641 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ddv-machzwd/ddv_machzwd_all.i [2023-11-22 21:01:11,646 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 21:01:11,959 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 21:01:11,960 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ddv-machzwd/ddv_machzwd_all.i [2023-11-22 21:01:11,989 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f641cf83/86ae1f2dc471438aacc88ae6de0a9be6/FLAG135cefbe2 [2023-11-22 21:01:12,003 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f641cf83/86ae1f2dc471438aacc88ae6de0a9be6 [2023-11-22 21:01:12,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 21:01:12,006 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 21:01:12,009 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 21:01:12,009 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 21:01:12,013 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 21:01:12,013 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:01:12" (1/1) ... [2023-11-22 21:01:12,014 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b09f83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:12, skipping insertion in model container [2023-11-22 21:01:12,014 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:01:12" (1/1) ... [2023-11-22 21:01:12,075 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 21:01:12,277 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ddv-machzwd/ddv_machzwd_all.i[452,465] [2023-11-22 21:01:12,972 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 21:01:13,015 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 21:01:13,024 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ddv-machzwd/ddv_machzwd_all.i[452,465] [2023-11-22 21:01:13,182 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 21:01:13,337 WARN L675 CHandler]: The function __VERIFIER_nondet_sector_t is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 21:01:13,343 INFO L206 MainTranslator]: Completed translation [2023-11-22 21:01:13,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:13 WrapperNode [2023-11-22 21:01:13,344 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 21:01:13,345 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 21:01:13,345 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 21:01:13,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 21:01:13,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:13" (1/1) ... [2023-11-22 21:01:13,386 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:13" (1/1) ... [2023-11-22 21:01:13,430 INFO L138 Inliner]: procedures = 476, calls = 866, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 1094 [2023-11-22 21:01:13,431 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 21:01:13,432 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 21:01:13,432 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 21:01:13,432 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 21:01:13,439 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:13" (1/1) ... [2023-11-22 21:01:13,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:13" (1/1) ... [2023-11-22 21:01:13,458 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:13" (1/1) ... [2023-11-22 21:01:13,458 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:13" (1/1) ... [2023-11-22 21:01:13,477 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:13" (1/1) ... [2023-11-22 21:01:13,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:13" (1/1) ... [2023-11-22 21:01:13,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:13" (1/1) ... [2023-11-22 21:01:13,490 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:13" (1/1) ... [2023-11-22 21:01:13,498 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 21:01:13,508 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 21:01:13,509 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 21:01:13,509 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 21:01:13,509 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:13" (1/1) ... [2023-11-22 21:01:13,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 21:01:13,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:01:13,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 21:01:13,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 21:01:13,628 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2023-11-22 21:01:13,629 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2023-11-22 21:01:13,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-22 21:01:13,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2023-11-22 21:01:13,629 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-22 21:01:13,629 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-22 21:01:13,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 21:01:13,630 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-22 21:01:13,630 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-22 21:01:13,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-22 21:01:13,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2023-11-22 21:01:13,630 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2023-11-22 21:01:13,630 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2023-11-22 21:01:13,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-22 21:01:13,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-22 21:01:13,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-22 21:01:13,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-22 21:01:13,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-22 21:01:13,631 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2023-11-22 21:01:13,632 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2023-11-22 21:01:13,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 21:01:13,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-22 21:01:13,633 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-22 21:01:13,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-22 21:01:13,633 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2023-11-22 21:01:13,633 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2023-11-22 21:01:13,633 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-11-22 21:01:13,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-11-22 21:01:13,634 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2023-11-22 21:01:13,634 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2023-11-22 21:01:13,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 21:01:13,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 21:01:13,635 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2023-11-22 21:01:13,635 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2023-11-22 21:01:13,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-22 21:01:13,635 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-22 21:01:13,636 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-22 21:01:13,636 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-22 21:01:13,636 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-22 21:01:13,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-22 21:01:13,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-22 21:01:13,636 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-22 21:01:13,636 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-22 21:01:13,636 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2023-11-22 21:01:13,637 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2023-11-22 21:01:13,637 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2023-11-22 21:01:13,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2023-11-22 21:01:13,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-22 21:01:13,637 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-22 21:01:13,637 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-22 21:01:13,637 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-22 21:01:13,637 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-22 21:01:13,638 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-22 21:01:13,638 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-22 21:01:13,638 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2023-11-22 21:01:13,638 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2023-11-22 21:01:13,638 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2023-11-22 21:01:13,638 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2023-11-22 21:01:13,639 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2023-11-22 21:01:13,639 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2023-11-22 21:01:13,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-22 21:01:13,639 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2023-11-22 21:01:13,640 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2023-11-22 21:01:13,640 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2023-11-22 21:01:13,640 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2023-11-22 21:01:13,640 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2023-11-22 21:01:13,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2023-11-22 21:01:13,641 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-22 21:01:13,641 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-22 21:01:13,641 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-22 21:01:13,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-22 21:01:13,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-22 21:01:13,919 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 21:01:13,921 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 21:01:14,684 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 21:01:14,735 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 21:01:14,735 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-22 21:01:14,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:01:14 BoogieIcfgContainer [2023-11-22 21:01:14,736 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 21:01:14,737 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 21:01:14,737 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 21:01:14,740 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 21:01:14,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:01:12" (1/3) ... [2023-11-22 21:01:14,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2a9f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:01:14, skipping insertion in model container [2023-11-22 21:01:14,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:13" (2/3) ... [2023-11-22 21:01:14,741 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2a9f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:01:14, skipping insertion in model container [2023-11-22 21:01:14,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:01:14" (3/3) ... [2023-11-22 21:01:14,742 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_all.i [2023-11-22 21:01:14,757 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 21:01:14,757 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 21:01:14,798 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 21:01:14,803 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;@37287869, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 21:01:14,804 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 21:01:14,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 340 states, 230 states have (on average 1.4565217391304348) internal successors, (335), 237 states have internal predecessors, (335), 81 states have call successors, (81), 27 states have call predecessors, (81), 27 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-11-22 21:01:14,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-22 21:01:14,816 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:01:14,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:01:14,817 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:01:14,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:01:14,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1110701353, now seen corresponding path program 1 times [2023-11-22 21:01:14,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:01:14,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564338913] [2023-11-22 21:01:14,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:01:14,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:01:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:15,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:01:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:15,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 21:01:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:15,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 21:01:15,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:01:15,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564338913] [2023-11-22 21:01:15,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564338913] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:01:15,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:01:15,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 21:01:15,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669343481] [2023-11-22 21:01:15,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:01:15,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 21:01:15,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:01:15,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 21:01:15,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 21:01:15,281 INFO L87 Difference]: Start difference. First operand has 340 states, 230 states have (on average 1.4565217391304348) internal successors, (335), 237 states have internal predecessors, (335), 81 states have call successors, (81), 27 states have call predecessors, (81), 27 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-22 21:01:16,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:01:16,232 INFO L93 Difference]: Finished difference Result 683 states and 1040 transitions. [2023-11-22 21:01:16,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 21:01:16,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2023-11-22 21:01:16,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:01:16,248 INFO L225 Difference]: With dead ends: 683 [2023-11-22 21:01:16,248 INFO L226 Difference]: Without dead ends: 341 [2023-11-22 21:01:16,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 21:01:16,261 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 79 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-22 21:01:16,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 608 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-22 21:01:16,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-11-22 21:01:16,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 334. [2023-11-22 21:01:16,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 227 states have (on average 1.422907488986784) internal successors, (323), 234 states have internal predecessors, (323), 79 states have call successors, (79), 27 states have call predecessors, (79), 27 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-22 21:01:16,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 480 transitions. [2023-11-22 21:01:16,315 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 480 transitions. Word has length 21 [2023-11-22 21:01:16,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:01:16,316 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 480 transitions. [2023-11-22 21:01:16,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-22 21:01:16,316 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 480 transitions. [2023-11-22 21:01:16,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-22 21:01:16,317 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:01:16,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:01:16,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 21:01:16,318 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:01:16,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:01:16,318 INFO L85 PathProgramCache]: Analyzing trace with hash 690888163, now seen corresponding path program 1 times [2023-11-22 21:01:16,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:01:16,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472911198] [2023-11-22 21:01:16,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:01:16,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:01:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:16,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:01:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:16,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 21:01:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:16,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 21:01:16,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:01:16,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472911198] [2023-11-22 21:01:16,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472911198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:01:16,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:01:16,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-22 21:01:16,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637587907] [2023-11-22 21:01:16,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:01:16,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 21:01:16,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:01:16,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 21:01:16,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 21:01:16,548 INFO L87 Difference]: Start difference. First operand 334 states and 480 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-22 21:01:18,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:01:18,079 INFO L93 Difference]: Finished difference Result 673 states and 967 transitions. [2023-11-22 21:01:18,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 21:01:18,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2023-11-22 21:01:18,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:01:18,082 INFO L225 Difference]: With dead ends: 673 [2023-11-22 21:01:18,083 INFO L226 Difference]: Without dead ends: 343 [2023-11-22 21:01:18,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 21:01:18,085 INFO L413 NwaCegarLoop]: 388 mSDtfsCounter, 79 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-22 21:01:18,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 945 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-22 21:01:18,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-11-22 21:01:18,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 336. [2023-11-22 21:01:18,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 229 states have (on average 1.4192139737991267) internal successors, (325), 236 states have internal predecessors, (325), 79 states have call successors, (79), 27 states have call predecessors, (79), 27 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-22 21:01:18,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 482 transitions. [2023-11-22 21:01:18,112 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 482 transitions. Word has length 21 [2023-11-22 21:01:18,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:01:18,113 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 482 transitions. [2023-11-22 21:01:18,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-22 21:01:18,113 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 482 transitions. [2023-11-22 21:01:18,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-22 21:01:18,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:01:18,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:01:18,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-22 21:01:18,114 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:01:18,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:01:18,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1925447979, now seen corresponding path program 1 times [2023-11-22 21:01:18,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:01:18,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988251763] [2023-11-22 21:01:18,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:01:18,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:01:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:18,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:01:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:18,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-22 21:01:18,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:18,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-22 21:01:18,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:01:18,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988251763] [2023-11-22 21:01:18,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988251763] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:01:18,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442904425] [2023-11-22 21:01:18,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:01:18,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:01:18,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:01:18,298 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:01:18,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-22 21:01:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:18,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 21:01:18,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:01:18,668 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-22 21:01:18,669 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:01:18,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-22 21:01:18,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442904425] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:01:18,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:01:18,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2023-11-22 21:01:18,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211678259] [2023-11-22 21:01:18,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:01:18,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 21:01:18,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:01:18,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 21:01:18,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-22 21:01:18,702 INFO L87 Difference]: Start difference. First operand 336 states and 482 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-22 21:01:20,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:01:20,460 INFO L93 Difference]: Finished difference Result 677 states and 972 transitions. [2023-11-22 21:01:20,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 21:01:20,460 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2023-11-22 21:01:20,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:01:20,463 INFO L225 Difference]: With dead ends: 677 [2023-11-22 21:01:20,463 INFO L226 Difference]: Without dead ends: 346 [2023-11-22 21:01:20,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-22 21:01:20,468 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 82 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-22 21:01:20,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 1288 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-22 21:01:20,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2023-11-22 21:01:20,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 339. [2023-11-22 21:01:20,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 232 states have (on average 1.4137931034482758) internal successors, (328), 239 states have internal predecessors, (328), 79 states have call successors, (79), 27 states have call predecessors, (79), 27 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-22 21:01:20,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 485 transitions. [2023-11-22 21:01:20,496 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 485 transitions. Word has length 23 [2023-11-22 21:01:20,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:01:20,496 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 485 transitions. [2023-11-22 21:01:20,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-22 21:01:20,496 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 485 transitions. [2023-11-22 21:01:20,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-22 21:01:20,497 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:01:20,497 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:01:20,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-22 21:01:20,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:01:20,712 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:01:20,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:01:20,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1792899077, now seen corresponding path program 2 times [2023-11-22 21:01:20,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:01:20,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015612206] [2023-11-22 21:01:20,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:01:20,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:01:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:20,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:01:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:20,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-22 21:01:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:20,986 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-22 21:01:20,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:01:20,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015612206] [2023-11-22 21:01:20,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015612206] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:01:20,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153870476] [2023-11-22 21:01:20,987 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 21:01:20,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:01:20,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:01:20,988 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:01:21,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-22 21:01:21,709 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-22 21:01:21,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 21:01:21,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-22 21:01:21,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:01:21,736 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-22 21:01:21,736 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:01:21,794 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-22 21:01:21,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153870476] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:01:21,795 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:01:21,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2023-11-22 21:01:21,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358956314] [2023-11-22 21:01:21,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:01:21,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-22 21:01:21,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:01:21,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-22 21:01:21,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2023-11-22 21:01:21,796 INFO L87 Difference]: Start difference. First operand 339 states and 485 transitions. Second operand has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 13 states have internal predecessors, (29), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-22 21:01:24,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:01:24,036 INFO L93 Difference]: Finished difference Result 683 states and 981 transitions. [2023-11-22 21:01:24,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-22 21:01:24,037 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 13 states have internal predecessors, (29), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2023-11-22 21:01:24,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:01:24,038 INFO L225 Difference]: With dead ends: 683 [2023-11-22 21:01:24,038 INFO L226 Difference]: Without dead ends: 352 [2023-11-22 21:01:24,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2023-11-22 21:01:24,040 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 81 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1978 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-22 21:01:24,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1978 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-22 21:01:24,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-11-22 21:01:24,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 345. [2023-11-22 21:01:24,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 238 states have (on average 1.403361344537815) internal successors, (334), 245 states have internal predecessors, (334), 79 states have call successors, (79), 27 states have call predecessors, (79), 27 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-22 21:01:24,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 491 transitions. [2023-11-22 21:01:24,054 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 491 transitions. Word has length 26 [2023-11-22 21:01:24,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:01:24,054 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 491 transitions. [2023-11-22 21:01:24,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 13 states have internal predecessors, (29), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-22 21:01:24,054 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 491 transitions. [2023-11-22 21:01:24,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-22 21:01:24,055 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:01:24,055 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:01:24,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-22 21:01:24,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-22 21:01:24,269 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:01:24,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:01:24,270 INFO L85 PathProgramCache]: Analyzing trace with hash -222231035, now seen corresponding path program 3 times [2023-11-22 21:01:24,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:01:24,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191568901] [2023-11-22 21:01:24,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:01:24,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:01:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-22 21:01:24,442 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-22 21:01:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-22 21:01:24,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-22 21:01:24,549 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-22 21:01:24,550 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-22 21:01:24,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-22 21:01:24,554 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2023-11-22 21:01:24,556 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-22 21:01:24,621 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret224 could not be translated [2023-11-22 21:01:24,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:01:24 BoogieIcfgContainer [2023-11-22 21:01:24,640 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-22 21:01:24,641 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-22 21:01:24,641 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-22 21:01:24,641 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-22 21:01:24,641 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:01:14" (3/4) ... [2023-11-22 21:01:24,643 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-22 21:01:24,643 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-22 21:01:24,644 INFO L158 Benchmark]: Toolchain (without parser) took 12637.42ms. Allocated memory was 148.9MB in the beginning and 297.8MB in the end (delta: 148.9MB). Free memory was 117.6MB in the beginning and 136.4MB in the end (delta: -18.8MB). Peak memory consumption was 129.5MB. Max. memory is 16.1GB. [2023-11-22 21:01:24,644 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 96.5MB. Free memory is still 46.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-22 21:01:24,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1335.42ms. Allocated memory is still 148.9MB. Free memory was 117.6MB in the beginning and 78.7MB in the end (delta: 38.8MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. [2023-11-22 21:01:24,644 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.40ms. Allocated memory is still 148.9MB. Free memory was 78.7MB in the beginning and 69.0MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-22 21:01:24,644 INFO L158 Benchmark]: Boogie Preprocessor took 76.24ms. Allocated memory is still 148.9MB. Free memory was 69.0MB in the beginning and 60.5MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-22 21:01:24,647 INFO L158 Benchmark]: RCFGBuilder took 1227.24ms. Allocated memory was 148.9MB in the beginning and 211.8MB in the end (delta: 62.9MB). Free memory was 60.5MB in the beginning and 118.0MB in the end (delta: -57.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-22 21:01:24,648 INFO L158 Benchmark]: TraceAbstraction took 9903.52ms. Allocated memory was 211.8MB in the beginning and 297.8MB in the end (delta: 86.0MB). Free memory was 116.9MB in the beginning and 137.5MB in the end (delta: -20.5MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. [2023-11-22 21:01:24,648 INFO L158 Benchmark]: Witness Printer took 2.53ms. Allocated memory is still 297.8MB. Free memory was 137.5MB in the beginning and 136.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-22 21:01:24,649 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 96.5MB. Free memory is still 46.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1335.42ms. Allocated memory is still 148.9MB. Free memory was 117.6MB in the beginning and 78.7MB in the end (delta: 38.8MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.40ms. Allocated memory is still 148.9MB. Free memory was 78.7MB in the beginning and 69.0MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.24ms. Allocated memory is still 148.9MB. Free memory was 69.0MB in the beginning and 60.5MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1227.24ms. Allocated memory was 148.9MB in the beginning and 211.8MB in the end (delta: 62.9MB). Free memory was 60.5MB in the beginning and 118.0MB in the end (delta: -57.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9903.52ms. Allocated memory was 211.8MB in the beginning and 297.8MB in the end (delta: 86.0MB). Free memory was 116.9MB in the beginning and 137.5MB in the end (delta: -20.5MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. * Witness Printer took 2.53ms. Allocated memory is still 297.8MB. Free memory was 137.5MB in the beginning and 136.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret224 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 12]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of large string literal at line 1476. Possible FailurePath: [L20] int current_execution_context; [L31] int (* _ddv_module_init)(void); [L32] void (* _ddv_module_exit)(void); [L232] unsigned long jiffies; [L1476] char _ddv_module_author[] = "Fernando Fuganti "; [L1477] char _ddv_module_description[] = "MachZ ZF-Logic Watchdog driver"; [L1478] char _ddv_module_license[] = "GPL"; [L1480] static int nowayout = 0; [L1481] char _ddv_module_param_nowayout [] = "Watchdog cannot be stopped once started (default=CONFIG_WATCHDOG_NOWAYOUT)"; [L1485-L1489] static struct watchdog_info zf_info = { .options = 0x8000 | 0x0100, .firmware_version = 1, .identity = "ZF-Logic watchdog", }; [L1490] static int action = 0; [L1491] char _ddv_module_param_action [] = "after watchdog resets, generate: 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI"; [L1493] static int zf_action = 0x0800; [L1494] static unsigned long zf_is_open; [L1495] static char zf_expect_close; [L1496] static spinlock_t zf_lock; [L1497] static spinlock_t zf_port_lock; [L1498] static struct timer_list zf_timer; [L1499] static unsigned long next_heartbeat = 0; [L1745-L1752] static const struct file_operations zf_fops = { .owner = ((struct module *) 0), .llseek = no_llseek, .write = zf_write, .ioctl = zf_ioctl, .open = zf_open, .release = zf_close, }; [L1754-L1758] static struct miscdevice zf_miscdev = { .minor = 130, .name = "watchdog", .fops = (struct file_operations *)&zf_fops, }; [L1765-L1767] static struct notifier_block zf_notifier = { .notifier_call = zf_notify_sys, }; [L1847] int (* _ddv_tmp_init)(void) = zf_init; [L1848] void (* _ddv_tmp_exit)(void) = zf_exit; [L1899] struct cdev fixed_cdev[1]; [L1900] int fixed_cdev_used = 0; [L1902] short number_cdev_registered = 0; [L1913] struct ddv_cdev cdev_registered[1]; [L2450] short number_genhd_registered = 0; [L2451] short number_fixed_genhd_used = 0; [L2462] struct gendisk fixed_gendisk[10]; [L2463] struct ddv_genhd genhd_registered[10]; [L2613] struct ddv_pci_driver registered_pci_driver; [L2624] struct registered_irq registered_irq[16]; [L2634] short number_tasklet_registered = 0; [L2641] struct ddv_tasklet tasklet_registered[1]; [L2651] short number_timer_registered = 0; [L2657] struct ddv_timer timer_registered[1]; [L2667] struct work_struct *shared_workqueue[10]; [L2677] spinlock_t kernel_lock; [L3363] request_queue_t fixed_request_queue[10]; [L3365] int number_request_queue_used = 0; [L3449] struct proc_dir_entry *proc_root_driver; [L3759] struct ddv_tty_driver global_tty_driver; [L3938] int ddv_ioport_request_start; [L3939] int ddv_ioport_request_len; [L1852] _ddv_module_init = zf_init [L1853] _ddv_module_exit = zf_exit [L1854] CALL call_ddv() [L2741] int err; [L2743] current_execution_context = 1 [L2745] CALL init_kernel() [L2681] int i; VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2683] CALL spin_lock_init(&kernel_lock) VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, jiffies=0, kernel_lock={56:0}, lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L4198] lock->init = 1 [L4199] lock->locked = 0 [L2683] RET spin_lock_init(&kernel_lock) VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] i = 0 VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=0, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=1, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=2, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=3, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=4, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=5, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=6, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=7, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=8, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=9, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=10, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] COND FALSE !(i < 10) VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=10, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2689] i = 0 VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=0, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2689] COND TRUE i < 1 [L2690] tasklet_registered[i].tasklet = ((void *)0) [L2691] tasklet_registered[i].is_running = 0 [L2689] i++ VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=1, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2689] COND FALSE !(i < 1) VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=1, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2745] RET init_kernel() [L2747] CALL (* _ddv_module_init)() [L1778] int ret; VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L1780] CALL printk("<6>" "machzwd" ": MachZ ZF-Logic Watchdog driver initializing.\n") VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, fmt={21:0}, genhd_registered={50:0}, global_tty_driver={58:0}, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L4525] return 0; [L1780] RET printk("<6>" "machzwd" ": MachZ ZF-Logic Watchdog driver initializing.\n") VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L1782] CALL zf_readw(0x02) VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L1471] CALL outb(port, 0x218) VAL [\old(byte)=2, \old(port)=536, _ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L3978] CALL __VERIFIER_assert(port >= ddv_ioport_request_start && port < ddv_ioport_request_start + ddv_ioport_request_len, "I/O port is requested") VAL [\old(expression)=0, _ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, x={28:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L12] COND TRUE !expression VAL [\old(expression)=0, _ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, expression=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, x={28:0}, x={28:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L12] reach_error() VAL [\old(expression)=0, _ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, expression=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, x={28:0}, x={28:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 30 procedures, 344 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.8s, OverallIterations: 5, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 373 SdHoareTripleChecker+Valid, 6.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 321 mSDsluCounter, 4819 SdHoareTripleChecker+Invalid, 5.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3263 mSDsCounter, 308 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1750 IncrementalHoareTripleChecker+Invalid, 2058 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 308 mSolverCounterUnsat, 1556 mSDtfsCounter, 1750 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=345occurred in iteration=4, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 28 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 172 NumberOfCodeBlocks, 172 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 181 ConstructedInterpolants, 0 QuantifiedInterpolants, 261 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1625 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 6/39 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-22 21:01:24,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ddv-machzwd/ddv_machzwd_all.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 32bit --witnessprinter.graph.data.programhash a564ea576763c13bfd3673da7d9fb82b1799f9ec9208539e745949eb812373cd --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 21:01:26,701 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 21:01:26,771 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-22 21:01:26,784 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 21:01:26,784 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 21:01:26,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 21:01:26,809 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 21:01:26,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 21:01:26,810 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 21:01:26,813 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 21:01:26,813 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 21:01:26,813 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 21:01:26,814 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 21:01:26,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 21:01:26,815 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 21:01:26,815 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 21:01:26,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 21:01:26,816 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-22 21:01:26,816 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-22 21:01:26,816 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 21:01:26,816 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 21:01:26,817 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 21:01:26,817 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 21:01:26,818 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-22 21:01:26,818 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-22 21:01:26,818 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-22 21:01:26,818 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-22 21:01:26,818 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 21:01:26,819 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 21:01:26,819 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 21:01:26,820 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 21:01:26,820 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 21:01:26,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 21:01:26,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 21:01:26,820 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 21:01:26,821 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 21:01:26,821 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 21:01:26,822 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-22 21:01:26,822 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-22 21:01:26,822 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 21:01:26,822 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 21:01:26,822 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 21:01:26,823 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 21:01:26,823 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 21:01:26,823 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-22 21:01:26,823 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a564ea576763c13bfd3673da7d9fb82b1799f9ec9208539e745949eb812373cd Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-22 21:01:27,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 21:01:27,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 21:01:27,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 21:01:27,119 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 21:01:27,119 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 21:01:27,121 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ddv-machzwd/ddv_machzwd_all.i [2023-11-22 21:01:28,320 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 21:01:28,624 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 21:01:28,624 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ddv-machzwd/ddv_machzwd_all.i [2023-11-22 21:01:28,652 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b9c8934e/d650f132936a4605b7d413f000b6f568/FLAG431cc3d19 [2023-11-22 21:01:28,663 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b9c8934e/d650f132936a4605b7d413f000b6f568 [2023-11-22 21:01:28,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 21:01:28,666 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 21:01:28,667 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 21:01:28,667 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 21:01:28,670 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 21:01:28,671 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:01:28" (1/1) ... [2023-11-22 21:01:28,672 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b6a2aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:28, skipping insertion in model container [2023-11-22 21:01:28,672 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:01:28" (1/1) ... [2023-11-22 21:01:28,754 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 21:01:28,866 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ddv-machzwd/ddv_machzwd_all.i[452,465] [2023-11-22 21:01:29,705 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 21:01:29,739 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-22 21:01:29,751 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 21:01:29,753 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ddv-machzwd/ddv_machzwd_all.i[452,465] [2023-11-22 21:01:29,849 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 21:01:29,864 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 21:01:29,873 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ddv-machzwd/ddv_machzwd_all.i[452,465] [2023-11-22 21:01:30,025 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 21:01:30,106 WARN L675 CHandler]: The function __VERIFIER_nondet_sector_t is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 21:01:30,127 INFO L206 MainTranslator]: Completed translation [2023-11-22 21:01:30,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:30 WrapperNode [2023-11-22 21:01:30,137 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 21:01:30,138 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 21:01:30,138 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 21:01:30,138 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 21:01:30,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:30" (1/1) ... [2023-11-22 21:01:30,204 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:30" (1/1) ... [2023-11-22 21:01:30,242 INFO L138 Inliner]: procedures = 484, calls = 866, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 999 [2023-11-22 21:01:30,243 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 21:01:30,243 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 21:01:30,243 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 21:01:30,244 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 21:01:30,254 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:30" (1/1) ... [2023-11-22 21:01:30,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:30" (1/1) ... [2023-11-22 21:01:30,268 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:30" (1/1) ... [2023-11-22 21:01:30,269 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:30" (1/1) ... [2023-11-22 21:01:30,309 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:30" (1/1) ... [2023-11-22 21:01:30,319 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:30" (1/1) ... [2023-11-22 21:01:30,334 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:30" (1/1) ... [2023-11-22 21:01:30,339 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:30" (1/1) ... [2023-11-22 21:01:30,354 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 21:01:30,355 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 21:01:30,357 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 21:01:30,357 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 21:01:30,358 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:30" (1/1) ... [2023-11-22 21:01:30,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 21:01:30,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:01:30,383 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 21:01:30,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 21:01:30,428 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2023-11-22 21:01:30,429 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2023-11-22 21:01:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2023-11-22 21:01:30,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2023-11-22 21:01:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-22 21:01:30,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2023-11-22 21:01:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-22 21:01:30,430 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-22 21:01:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 21:01:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-22 21:01:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-22 21:01:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-22 21:01:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-22 21:01:30,431 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-22 21:01:30,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-22 21:01:30,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2023-11-22 21:01:30,431 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2023-11-22 21:01:30,431 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2023-11-22 21:01:30,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-22 21:01:30,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-22 21:01:30,432 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-22 21:01:30,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-22 21:01:30,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-22 21:01:30,433 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2023-11-22 21:01:30,433 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2023-11-22 21:01:30,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 21:01:30,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-22 21:01:30,433 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-22 21:01:30,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-22 21:01:30,434 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2023-11-22 21:01:30,434 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2023-11-22 21:01:30,434 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2023-11-22 21:01:30,434 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2023-11-22 21:01:30,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 21:01:30,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 21:01:30,434 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2023-11-22 21:01:30,435 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2023-11-22 21:01:30,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-22 21:01:30,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-22 21:01:30,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-22 21:01:30,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-22 21:01:30,435 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-22 21:01:30,435 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-22 21:01:30,435 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-22 21:01:30,436 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-22 21:01:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-22 21:01:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-22 21:01:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-22 21:01:30,436 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-22 21:01:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-22 21:01:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2023-11-22 21:01:30,437 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2023-11-22 21:01:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-22 21:01:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-22 21:01:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-22 21:01:30,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-22 21:01:30,438 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-22 21:01:30,438 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-22 21:01:30,438 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-22 21:01:30,438 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-22 21:01:30,439 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-22 21:01:30,439 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-22 21:01:30,439 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2023-11-22 21:01:30,439 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2023-11-22 21:01:30,439 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2023-11-22 21:01:30,439 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2023-11-22 21:01:30,439 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2023-11-22 21:01:30,439 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2023-11-22 21:01:30,439 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2023-11-22 21:01:30,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2023-11-22 21:01:30,440 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2023-11-22 21:01:30,440 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2023-11-22 21:01:30,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-22 21:01:30,440 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2023-11-22 21:01:30,441 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2023-11-22 21:01:30,441 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-22 21:01:30,441 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-22 21:01:30,441 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2023-11-22 21:01:30,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2023-11-22 21:01:30,721 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 21:01:30,724 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 21:01:34,106 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 21:01:34,221 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 21:01:34,222 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-22 21:01:34,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:01:34 BoogieIcfgContainer [2023-11-22 21:01:34,222 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 21:01:34,224 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 21:01:34,224 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 21:01:34,227 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 21:01:34,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:01:28" (1/3) ... [2023-11-22 21:01:34,227 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75900045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:01:34, skipping insertion in model container [2023-11-22 21:01:34,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:30" (2/3) ... [2023-11-22 21:01:34,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75900045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:01:34, skipping insertion in model container [2023-11-22 21:01:34,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:01:34" (3/3) ... [2023-11-22 21:01:34,230 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_all.i [2023-11-22 21:01:34,243 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 21:01:34,243 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 21:01:34,294 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 21:01:34,303 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;@6ccace9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 21:01:34,303 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 21:01:34,314 INFO L276 IsEmpty]: Start isEmpty. Operand has 314 states, 204 states have (on average 1.4313725490196079) internal successors, (292), 211 states have internal predecessors, (292), 81 states have call successors, (81), 27 states have call predecessors, (81), 27 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-11-22 21:01:34,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-22 21:01:34,323 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:01:34,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:01:34,324 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:01:34,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:01:34,329 INFO L85 PathProgramCache]: Analyzing trace with hash 780375043, now seen corresponding path program 1 times [2023-11-22 21:01:34,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 21:01:34,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999432395] [2023-11-22 21:01:34,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:01:34,341 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 21:01:34,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-11-22 21:01:34,344 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-22 21:01:34,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-22 21:01:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:34,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-22 21:01:34,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:01:34,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 21:01:34,723 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:01:34,724 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 21:01:34,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999432395] [2023-11-22 21:01:34,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999432395] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:01:34,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:01:34,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-22 21:01:34,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643406497] [2023-11-22 21:01:34,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:01:34,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-22 21:01:34,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 21:01:34,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-22 21:01:34,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-22 21:01:34,755 INFO L87 Difference]: Start difference. First operand has 314 states, 204 states have (on average 1.4313725490196079) internal successors, (292), 211 states have internal predecessors, (292), 81 states have call successors, (81), 27 states have call predecessors, (81), 27 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-22 21:01:36,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:01:36,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:01:36,780 INFO L93 Difference]: Finished difference Result 624 states and 945 transitions. [2023-11-22 21:01:36,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 21:01:36,783 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2023-11-22 21:01:36,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:01:36,828 INFO L225 Difference]: With dead ends: 624 [2023-11-22 21:01:36,828 INFO L226 Difference]: Without dead ends: 308 [2023-11-22 21:01:36,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-22 21:01:36,885 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-22 21:01:36,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 411 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-22 21:01:36,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2023-11-22 21:01:36,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2023-11-22 21:01:36,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 201 states have (on average 1.4029850746268657) internal successors, (282), 208 states have internal predecessors, (282), 79 states have call successors, (79), 27 states have call predecessors, (79), 27 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-22 21:01:36,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 439 transitions. [2023-11-22 21:01:36,951 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 439 transitions. Word has length 21 [2023-11-22 21:01:36,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:01:36,952 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 439 transitions. [2023-11-22 21:01:36,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-22 21:01:36,952 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 439 transitions. [2023-11-22 21:01:36,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-22 21:01:36,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:01:36,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:01:36,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-22 21:01:37,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 21:01:37,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:01:37,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:01:37,160 INFO L85 PathProgramCache]: Analyzing trace with hash -481240503, now seen corresponding path program 1 times [2023-11-22 21:01:37,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 21:01:37,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174592088] [2023-11-22 21:01:37,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:01:37,161 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 21:01:37,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-11-22 21:01:37,164 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-22 21:01:37,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-22 21:01:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:37,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-22 21:01:37,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:01:37,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 21:01:37,592 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:01:37,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 21:01:37,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1174592088] [2023-11-22 21:01:37,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1174592088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:01:37,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:01:37,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 21:01:37,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237220734] [2023-11-22 21:01:37,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:01:37,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 21:01:37,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 21:01:37,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 21:01:37,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 21:01:37,596 INFO L87 Difference]: Start difference. First operand 308 states and 439 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-22 21:01:39,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:01:41,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:01:42,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:01:42,293 INFO L93 Difference]: Finished difference Result 614 states and 876 transitions. [2023-11-22 21:01:42,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 21:01:42,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2023-11-22 21:01:42,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:01:42,296 INFO L225 Difference]: With dead ends: 614 [2023-11-22 21:01:42,296 INFO L226 Difference]: Without dead ends: 310 [2023-11-22 21:01:42,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 21:01:42,298 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 0 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-22 21:01:42,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 805 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 2 Unknown, 0 Unchecked, 4.7s Time] [2023-11-22 21:01:42,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-11-22 21:01:42,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2023-11-22 21:01:42,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 203 states have (on average 1.3990147783251232) internal successors, (284), 210 states have internal predecessors, (284), 79 states have call successors, (79), 27 states have call predecessors, (79), 27 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-22 21:01:42,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 441 transitions. [2023-11-22 21:01:42,332 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 441 transitions. Word has length 21 [2023-11-22 21:01:42,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:01:42,332 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 441 transitions. [2023-11-22 21:01:42,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-22 21:01:42,333 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 441 transitions. [2023-11-22 21:01:42,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-22 21:01:42,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:01:42,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:01:42,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-22 21:01:42,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 21:01:42,543 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:01:42,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:01:42,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1899744357, now seen corresponding path program 1 times [2023-11-22 21:01:42,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 21:01:42,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [677191330] [2023-11-22 21:01:42,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:01:42,545 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 21:01:42,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-11-22 21:01:42,546 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-22 21:01:42,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-22 21:01:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:42,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 21:01:42,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:01:42,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-22 21:01:42,939 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:01:42,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-22 21:01:42,980 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 21:01:42,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [677191330] [2023-11-22 21:01:42,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [677191330] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:01:42,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 21:01:42,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-11-22 21:01:42,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66421106] [2023-11-22 21:01:42,980 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 21:01:42,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 21:01:42,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 21:01:42,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 21:01:42,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:01:42,982 INFO L87 Difference]: Start difference. First operand 310 states and 441 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-22 21:01:45,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:01:47,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:01:49,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:01:51,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:01:53,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:01:53,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:01:53,955 INFO L93 Difference]: Finished difference Result 618 states and 881 transitions. [2023-11-22 21:01:53,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 21:01:53,957 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2023-11-22 21:01:53,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:01:53,958 INFO L225 Difference]: With dead ends: 618 [2023-11-22 21:01:53,959 INFO L226 Difference]: Without dead ends: 313 [2023-11-22 21:01:53,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:01:53,960 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 2 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 6 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2023-11-22 21:01:53,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1204 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 110 Invalid, 5 Unknown, 0 Unchecked, 10.9s Time] [2023-11-22 21:01:53,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-11-22 21:01:53,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2023-11-22 21:01:53,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 206 states have (on average 1.3883495145631068) internal successors, (286), 213 states have internal predecessors, (286), 79 states have call successors, (79), 27 states have call predecessors, (79), 27 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-22 21:01:53,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 443 transitions. [2023-11-22 21:01:53,990 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 443 transitions. Word has length 23 [2023-11-22 21:01:53,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:01:53,991 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 443 transitions. [2023-11-22 21:01:53,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-22 21:01:53,991 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 443 transitions. [2023-11-22 21:01:53,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-22 21:01:53,992 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:01:53,992 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:01:54,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-22 21:01:54,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 21:01:54,199 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:01:54,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:01:54,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1691617108, now seen corresponding path program 2 times [2023-11-22 21:01:54,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 21:01:54,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1645505703] [2023-11-22 21:01:54,204 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 21:01:54,204 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 21:01:54,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-11-22 21:01:54,205 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-22 21:01:54,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-22 21:01:54,649 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-22 21:01:54,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 21:01:54,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-22 21:01:54,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:01:54,726 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-22 21:01:54,726 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:01:54,805 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-22 21:01:54,805 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 21:01:54,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1645505703] [2023-11-22 21:01:54,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1645505703] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:01:54,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 21:01:54,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-22 21:01:54,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336356441] [2023-11-22 21:01:54,805 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 21:01:54,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-22 21:01:54,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 21:01:54,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-22 21:01:54,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-22 21:01:54,806 INFO L87 Difference]: Start difference. First operand 313 states and 443 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-22 21:01:56,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:01:58,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:02:00,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:02:02,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:02:04,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:02:06,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:02:08,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:02:10,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:02:12,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:02:14,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:02:16,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:02:18,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:18,683 INFO L93 Difference]: Finished difference Result 624 states and 888 transitions. [2023-11-22 21:02:18,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-22 21:02:18,684 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2023-11-22 21:02:18,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:18,686 INFO L225 Difference]: With dead ends: 624 [2023-11-22 21:02:18,686 INFO L226 Difference]: Without dead ends: 319 [2023-11-22 21:02:18,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2023-11-22 21:02:18,687 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 1 mSDsluCounter, 2800 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 4 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3204 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:18,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3204 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 311 Invalid, 11 Unknown, 0 Unchecked, 23.7s Time] [2023-11-22 21:02:18,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-11-22 21:02:18,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2023-11-22 21:02:18,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 212 states have (on average 1.3773584905660377) internal successors, (292), 219 states have internal predecessors, (292), 79 states have call successors, (79), 27 states have call predecessors, (79), 27 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-22 21:02:18,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 449 transitions. [2023-11-22 21:02:18,714 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 449 transitions. Word has length 26 [2023-11-22 21:02:18,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:18,715 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 449 transitions. [2023-11-22 21:02:18,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-22 21:02:18,715 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 449 transitions. [2023-11-22 21:02:18,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-22 21:02:18,716 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:18,716 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:02:18,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-22 21:02:18,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 21:02:18,917 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:18,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:18,917 INFO L85 PathProgramCache]: Analyzing trace with hash -861285900, now seen corresponding path program 3 times [2023-11-22 21:02:18,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 21:02:18,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [251926698] [2023-11-22 21:02:18,918 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-22 21:02:18,918 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 21:02:18,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-11-22 21:02:18,919 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-22 21:02:18,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-22 21:02:19,755 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-22 21:02:19,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-11-22 21:02:19,755 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-22 21:02:19,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-22 21:02:20,117 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-22 21:02:20,118 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-22 21:02:20,119 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-22 21:02:20,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-22 21:02:20,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 21:02:20,332 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2023-11-22 21:02:20,334 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-22 21:02:20,403 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret218 could not be translated [2023-11-22 21:02:20,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:02:20 BoogieIcfgContainer [2023-11-22 21:02:20,418 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-22 21:02:20,418 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-22 21:02:20,418 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-22 21:02:20,418 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-22 21:02:20,419 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:01:34" (3/4) ... [2023-11-22 21:02:20,420 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-22 21:02:20,421 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-22 21:02:20,422 INFO L158 Benchmark]: Toolchain (without parser) took 51755.87ms. Allocated memory was 75.5MB in the beginning and 197.1MB in the end (delta: 121.6MB). Free memory was 42.3MB in the beginning and 74.7MB in the end (delta: -32.4MB). Peak memory consumption was 90.2MB. Max. memory is 16.1GB. [2023-11-22 21:02:20,422 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory is still 33.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-22 21:02:20,422 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1470.79ms. Allocated memory was 75.5MB in the beginning and 121.6MB in the end (delta: 46.1MB). Free memory was 42.2MB in the beginning and 85.6MB in the end (delta: -43.4MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. [2023-11-22 21:02:20,423 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.80ms. Allocated memory is still 121.6MB. Free memory was 85.6MB in the beginning and 76.5MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-22 21:02:20,423 INFO L158 Benchmark]: Boogie Preprocessor took 111.38ms. Allocated memory is still 121.6MB. Free memory was 76.5MB in the beginning and 68.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-22 21:02:20,423 INFO L158 Benchmark]: RCFGBuilder took 3867.06ms. Allocated memory was 121.6MB in the beginning and 163.6MB in the end (delta: 41.9MB). Free memory was 68.1MB in the beginning and 116.5MB in the end (delta: -48.3MB). Peak memory consumption was 55.0MB. Max. memory is 16.1GB. [2023-11-22 21:02:20,423 INFO L158 Benchmark]: TraceAbstraction took 46193.93ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 115.4MB in the beginning and 74.7MB in the end (delta: 40.7MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. [2023-11-22 21:02:20,423 INFO L158 Benchmark]: Witness Printer took 3.32ms. Allocated memory is still 197.1MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-22 21:02:20,425 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory is still 33.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1470.79ms. Allocated memory was 75.5MB in the beginning and 121.6MB in the end (delta: 46.1MB). Free memory was 42.2MB in the beginning and 85.6MB in the end (delta: -43.4MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.80ms. Allocated memory is still 121.6MB. Free memory was 85.6MB in the beginning and 76.5MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 111.38ms. Allocated memory is still 121.6MB. Free memory was 76.5MB in the beginning and 68.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 3867.06ms. Allocated memory was 121.6MB in the beginning and 163.6MB in the end (delta: 41.9MB). Free memory was 68.1MB in the beginning and 116.5MB in the end (delta: -48.3MB). Peak memory consumption was 55.0MB. Max. memory is 16.1GB. * TraceAbstraction took 46193.93ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 115.4MB in the beginning and 74.7MB in the end (delta: 40.7MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. * Witness Printer took 3.32ms. Allocated memory is still 197.1MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret218 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 12]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of large string literal at line 1476. Possible FailurePath: [L20] int current_execution_context; [L31] int (* _ddv_module_init)(void); [L32] void (* _ddv_module_exit)(void); [L232] unsigned long jiffies; [L1476] char _ddv_module_author[] = "Fernando Fuganti "; [L1477] char _ddv_module_description[] = "MachZ ZF-Logic Watchdog driver"; [L1478] char _ddv_module_license[] = "GPL"; [L1480] static int nowayout = 0; [L1481] char _ddv_module_param_nowayout [] = "Watchdog cannot be stopped once started (default=CONFIG_WATCHDOG_NOWAYOUT)"; [L1485-L1489] static struct watchdog_info zf_info = { .options = 0x8000 | 0x0100, .firmware_version = 1, .identity = "ZF-Logic watchdog", }; [L1490] static int action = 0; [L1491] char _ddv_module_param_action [] = "after watchdog resets, generate: 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI"; [L1493] static int zf_action = 0x0800; [L1494] static unsigned long zf_is_open; [L1495] static char zf_expect_close; [L1496] static spinlock_t zf_lock; [L1497] static spinlock_t zf_port_lock; [L1498] static struct timer_list zf_timer; [L1499] static unsigned long next_heartbeat = 0; [L1745-L1752] static const struct file_operations zf_fops = { .owner = ((struct module *) 0), .llseek = no_llseek, .write = zf_write, .ioctl = zf_ioctl, .open = zf_open, .release = zf_close, }; [L1754-L1758] static struct miscdevice zf_miscdev = { .minor = 130, .name = "watchdog", .fops = (struct file_operations *)&zf_fops, }; [L1765-L1767] static struct notifier_block zf_notifier = { .notifier_call = zf_notify_sys, }; [L1847] int (* _ddv_tmp_init)(void) = zf_init; [L1848] void (* _ddv_tmp_exit)(void) = zf_exit; [L1899] struct cdev fixed_cdev[1]; [L1900] int fixed_cdev_used = 0; [L1902] short number_cdev_registered = 0; [L1913] struct ddv_cdev cdev_registered[1]; [L2450] short number_genhd_registered = 0; [L2451] short number_fixed_genhd_used = 0; [L2462] struct gendisk fixed_gendisk[10]; [L2463] struct ddv_genhd genhd_registered[10]; [L2613] struct ddv_pci_driver registered_pci_driver; [L2624] struct registered_irq registered_irq[16]; [L2634] short number_tasklet_registered = 0; [L2641] struct ddv_tasklet tasklet_registered[1]; [L2651] short number_timer_registered = 0; [L2657] struct ddv_timer timer_registered[1]; [L2667] struct work_struct *shared_workqueue[10]; [L2677] spinlock_t kernel_lock; [L3363] request_queue_t fixed_request_queue[10]; [L3365] int number_request_queue_used = 0; [L3449] struct proc_dir_entry *proc_root_driver; [L3759] struct ddv_tty_driver global_tty_driver; [L3938] int ddv_ioport_request_start; [L3939] int ddv_ioport_request_len; [L1852] _ddv_module_init = zf_init [L1853] _ddv_module_exit = zf_exit [L1854] CALL call_ddv() [L2741] int err; [L2743] current_execution_context = 1 [L2745] CALL init_kernel() [L2681] int i; VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2683] CALL spin_lock_init(&kernel_lock) VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, jiffies=0, kernel_lock={56:0}, lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L4198] lock->init = 1 [L4199] lock->locked = 0 [L2683] RET spin_lock_init(&kernel_lock) VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] i = 0 VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=0, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=1, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=2, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=3, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=4, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=5, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=6, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=7, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=8, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=9, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=10, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2685] COND FALSE !(i < 10) VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=10, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2689] i = 0 VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=0, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2689] COND TRUE i < 1 [L2690] tasklet_registered[i].tasklet = ((void *)0) [L2691] tasklet_registered[i].is_running = 0 [L2689] i++ VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=1, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2689] COND FALSE !(i < 1) VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, i=1, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L2745] RET init_kernel() [L2747] CALL (* _ddv_module_init)() [L1778] int ret; VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L1780] CALL printk("<6>" "machzwd" ": MachZ ZF-Logic Watchdog driver initializing.\n") VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, fmt={21:0}, genhd_registered={50:0}, global_tty_driver={58:0}, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L4525] return 0; [L1780] RET printk("<6>" "machzwd" ": MachZ ZF-Logic Watchdog driver initializing.\n") VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L1782] CALL zf_readw(0x02) VAL [_ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L1471] CALL outb(port, 0x218) VAL [\old(byte)=2, \old(port)=536, _ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L3978] CALL __VERIFIER_assert(port >= ddv_ioport_request_start && port < ddv_ioport_request_start + ddv_ioport_request_len, "I/O port is requested") VAL [\old(expression)=0, _ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, x={28:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L12] COND TRUE !expression VAL [\old(expression)=0, _ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, expression=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, x={28:0}, x={28:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] [L12] reach_error() VAL [\old(expression)=0, _ddv_module_exit={-1:8}, _ddv_module_init={-1:7}, _ddv_tmp_exit={-1:8}, _ddv_tmp_init={-1:7}, action=0, cdev_registered={48:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, expression=0, fixed_cdev={47:0}, fixed_cdev_used=0, fixed_gendisk={49:0}, fixed_request_queue={57:0}, genhd_registered={50:0}, global_tty_driver={58:0}, jiffies=0, kernel_lock={56:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={52:0}, registered_pci_driver={51:0}, shared_workqueue={55:0}, tasklet_registered={53:0}, timer_registered={54:0}, x={28:0}, x={28:0}, zf_action=2048, zf_expect_close=0, zf_fops={44:0}, zf_info={39:0}, zf_is_open={40:0}, zf_lock={41:0}, zf_miscdev={45:0}, zf_notifier={46:0}, zf_port_lock={42:0}, zf_timer={43:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 30 procedures, 318 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 46.1s, OverallIterations: 5, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 41.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 41.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 5624 SdHoareTripleChecker+Invalid, 40.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4000 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 527 IncrementalHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 1624 mSDtfsCounter, 527 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=319occurred in iteration=4, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 134 ConstructedInterpolants, 0 QuantifiedInterpolants, 174 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2077 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 4/26 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-22 21:02:20,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample