./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b556bd67-8988-4451-829c-9a2bec40fef3/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b556bd67-8988-4451-829c-9a2bec40fef3/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b556bd67-8988-4451-829c-9a2bec40fef3/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b556bd67-8988-4451-829c-9a2bec40fef3/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b556bd67-8988-4451-829c-9a2bec40fef3/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b556bd67-8988-4451-829c-9a2bec40fef3/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash db1e722f73dbd7795cdbaca4c816f6c8a0f90138145d9f90bf0f222b7dd371eb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:00:26,021 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:00:26,144 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b556bd67-8988-4451-829c-9a2bec40fef3/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-19 04:00:26,149 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:00:26,149 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:00:26,195 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:00:26,196 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:00:26,197 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:00:26,198 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:00:26,199 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:00:26,200 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:00:26,200 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:00:26,201 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:00:26,203 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:00:26,204 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:00:26,205 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:00:26,205 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:00:26,206 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:00:26,206 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:00:26,207 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:00:26,207 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:00:26,208 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:00:26,209 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:00:26,209 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:00:26,210 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:00:26,210 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:00:26,211 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:00:26,211 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:00:26,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:00:26,213 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:00:26,213 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:00:26,214 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:00:26,214 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:00:26,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:00:26,215 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:00:26,215 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b556bd67-8988-4451-829c-9a2bec40fef3/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b556bd67-8988-4451-829c-9a2bec40fef3/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db1e722f73dbd7795cdbaca4c816f6c8a0f90138145d9f90bf0f222b7dd371eb [2023-11-19 04:00:26,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:00:26,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:00:26,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:00:26,530 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:00:26,530 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:00:26,532 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b556bd67-8988-4451-829c-9a2bec40fef3/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2023-11-19 04:00:29,601 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:00:29,856 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:00:29,856 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b556bd67-8988-4451-829c-9a2bec40fef3/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2023-11-19 04:00:29,867 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b556bd67-8988-4451-829c-9a2bec40fef3/bin/ukojak-verify-G8NBE6pJGL/data/877607516/db2b4477a45c49779ce9523cd472c09e/FLAG0d38072e5 [2023-11-19 04:00:29,881 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b556bd67-8988-4451-829c-9a2bec40fef3/bin/ukojak-verify-G8NBE6pJGL/data/877607516/db2b4477a45c49779ce9523cd472c09e [2023-11-19 04:00:29,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:00:29,885 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:00:29,894 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:00:29,894 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:00:29,898 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:00:29,899 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:00:29" (1/1) ... [2023-11-19 04:00:29,900 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e07a264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:29, skipping insertion in model container [2023-11-19 04:00:29,900 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:00:29" (1/1) ... [2023-11-19 04:00:29,945 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:00:30,291 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:00:30,311 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:00:30,398 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:00:30,415 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:00:30,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:30 WrapperNode [2023-11-19 04:00:30,416 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:00:30,417 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:00:30,417 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:00:30,417 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:00:30,425 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:30" (1/1) ... [2023-11-19 04:00:30,450 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:30" (1/1) ... [2023-11-19 04:00:30,514 INFO L138 Inliner]: procedures = 24, calls = 30, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 462 [2023-11-19 04:00:30,515 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:00:30,516 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:00:30,516 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:00:30,516 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:00:30,538 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:30" (1/1) ... [2023-11-19 04:00:30,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:30" (1/1) ... [2023-11-19 04:00:30,550 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:30" (1/1) ... [2023-11-19 04:00:30,551 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:30" (1/1) ... [2023-11-19 04:00:30,577 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:30" (1/1) ... [2023-11-19 04:00:30,582 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:30" (1/1) ... [2023-11-19 04:00:30,584 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:30" (1/1) ... [2023-11-19 04:00:30,587 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:30" (1/1) ... [2023-11-19 04:00:30,591 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:00:30,592 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:00:30,592 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:00:30,593 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:00:30,594 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:30" (1/1) ... [2023-11-19 04:00:30,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:00:30,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b556bd67-8988-4451-829c-9a2bec40fef3/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:00:30,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b556bd67-8988-4451-829c-9a2bec40fef3/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:00:30,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b556bd67-8988-4451-829c-9a2bec40fef3/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:00:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:00:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2023-11-19 04:00:30,694 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2023-11-19 04:00:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:00:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2023-11-19 04:00:30,696 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2023-11-19 04:00:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:00:30,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:00:30,834 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:00:30,837 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:00:30,883 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:00:30,894 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:00:30,905 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:00:31,379 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##82: assume !false;havoc KeWaitForSingleObject_~tmp_ndt_4~0#1; [2023-11-19 04:00:31,379 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##81: assume false; [2023-11-19 04:00:31,380 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##58: assume !false; [2023-11-19 04:00:31,380 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##57: assume false; [2023-11-19 04:00:31,380 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2023-11-19 04:00:31,380 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2023-11-19 04:00:31,382 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:00:31,444 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2023-11-19 04:00:31,444 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2023-11-19 04:00:31,448 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:00:31,706 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:00:31,706 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:00:31,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:00:31 BoogieIcfgContainer [2023-11-19 04:00:31,714 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:00:31,716 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:00:31,717 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:00:31,728 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:00:31,729 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:00:31" (1/1) ... [2023-11-19 04:00:31,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:00:31,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:31,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 101 states and 145 transitions. [2023-11-19 04:00:31,827 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 145 transitions. [2023-11-19 04:00:31,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 04:00:31,831 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:31,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:00:31,947 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:00:31,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:00:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:00:32,133 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:00:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:00:32,195 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 04:00:32,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:00:32 ImpRootNode [2023-11-19 04:00:32,268 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:00:32,270 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:00:32,270 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:00:32,270 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:00:32,271 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:00:31" (3/4) ... [2023-11-19 04:00:32,272 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 04:00:32,386 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b556bd67-8988-4451-829c-9a2bec40fef3/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 04:00:32,386 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:00:32,387 INFO L158 Benchmark]: Toolchain (without parser) took 2501.90ms. Allocated memory is still 151.0MB. Free memory was 107.5MB in the beginning and 110.2MB in the end (delta: -2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:00:32,387 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 102.8MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:00:32,388 INFO L158 Benchmark]: CACSL2BoogieTranslator took 521.83ms. Allocated memory is still 151.0MB. Free memory was 106.6MB in the beginning and 113.1MB in the end (delta: -6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 04:00:32,388 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.44ms. Allocated memory is still 151.0MB. Free memory was 113.1MB in the beginning and 110.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:00:32,388 INFO L158 Benchmark]: Boogie Preprocessor took 75.64ms. Allocated memory is still 151.0MB. Free memory was 110.9MB in the beginning and 108.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:00:32,389 INFO L158 Benchmark]: RCFGBuilder took 1122.37ms. Allocated memory is still 151.0MB. Free memory was 108.9MB in the beginning and 52.4MB in the end (delta: 56.5MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2023-11-19 04:00:32,389 INFO L158 Benchmark]: CodeCheck took 551.51ms. Allocated memory is still 151.0MB. Free memory was 52.4MB in the beginning and 114.4MB in the end (delta: -62.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:00:32,389 INFO L158 Benchmark]: Witness Printer took 116.53ms. Allocated memory is still 151.0MB. Free memory was 114.4MB in the beginning and 110.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:00:32,392 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 101 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 169]: integer overflow possible integer overflow possible We found a FailurePath: [L18] int KernelMode ; [L19] int Executive ; [L20] int s ; [L21] int UNLOADED ; [L22] int NP ; [L23] int DC ; [L24] int SKIP1 ; [L25] int SKIP2 ; [L26] int MPR1 ; [L27] int MPR3 ; [L28] int IPC ; [L29] int pended ; [L30] int compFptr ; [L31] int compRegistered ; [L32] int lowerDriverReturn ; [L33] int setEventCalled ; [L34] int customIrp ; [L35] int myStatus ; [L289] int status ; [L290] int irp = __VERIFIER_nondet_int() ; [L291] int pirp ; [L292] int pirp__IoStatus__Status ; [L293] int irp_choice = __VERIFIER_nondet_int() ; [L294] int devobj = __VERIFIER_nondet_int() ; [L295] int __cil_tmp8 ; [L300] KernelMode = 0 [L301] Executive = 0 [L302] s = 0 [L303] UNLOADED = 0 [L304] NP = 0 [L305] DC = 0 [L306] SKIP1 = 0 [L307] SKIP2 = 0 [L308] MPR1 = 0 [L309] MPR3 = 0 [L310] IPC = 0 [L311] pended = 0 [L312] compFptr = 0 [L313] compRegistered = 0 [L314] lowerDriverReturn = 0 [L315] setEventCalled = 0 [L316] customIrp = 0 [L317] myStatus = 0 [L319] status = 0 [L320] pirp = irp [L321] CALL _BLAST_init() [L55] UNLOADED = 0 [L56] NP = 1 [L57] DC = 2 [L58] SKIP1 = 3 [L59] SKIP2 = 4 [L60] MPR1 = 5 [L61] MPR3 = 6 [L62] IPC = 7 [L63] s = UNLOADED [L64] pended = 0 [L65] compFptr = 0 [L66] compRegistered = 0 [L67] lowerDriverReturn = 0 [L68] setEventCalled = 0 [L69] customIrp = 0 [L321] RET _BLAST_init() [L323] COND TRUE status >= 0 [L324] s = NP [L325] customIrp = 0 [L326] setEventCalled = customIrp [L327] lowerDriverReturn = setEventCalled [L328] compRegistered = lowerDriverReturn [L329] pended = compRegistered [L330] pirp__IoStatus__Status = 0 [L331] myStatus = 0 [L332] COND TRUE irp_choice == 0 [L333] pirp__IoStatus__Status = -1073741637 [L334] myStatus = -1073741637 [L337] CALL stub_driver_init() [L41] s = NP [L42] pended = 0 [L43] compFptr = 0 [L44] compRegistered = 0 [L45] lowerDriverReturn = 0 [L46] setEventCalled = 0 [L47] customIrp = 0 [L337] RET stub_driver_init() [L340] COND TRUE status >= 0 [L341] __cil_tmp8 = 1 VAL [DC=2, Executive=0, IPC=7, KernelMode=0, MPR1=5, MPR3=6, NP=1, SKIP1=3, SKIP2=4, UNLOADED=0, __cil_tmp8=1, compFptr=0, compRegistered=0, customIrp=0, devobj=0, irp=0, irp_choice=0, lowerDriverReturn=0, myStatus=-1073741637, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, status=0] [L346] COND FALSE !(! __cil_tmp8) [L350] int tmp_ndt_1; [L351] tmp_ndt_1 = __VERIFIER_nondet_int() [L352] COND TRUE tmp_ndt_1 == 3 [L359] CALL KbFilter_PnP(devobj, pirp) [L76] int devExt ; [L77] int irpStack ; [L78] int status ; [L79] int event = __VERIFIER_nondet_int() ; [L80] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L81] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L82] int irpStack__MinorFunction = __VERIFIER_nondet_int() ; [L83] int devExt__TopOfStack = __VERIFIER_nondet_int() ; [L84] int devExt__Started ; [L85] int devExt__Removed ; [L86] int devExt__SurpriseRemoved ; [L87] int Irp__IoStatus__Status ; [L88] int Irp__IoStatus__Information ; [L89] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L90] int irpSp ; [L91] int nextIrpSp ; [L92] int nextIrpSp__Control ; [L93] int irpSp___0 ; [L94] int irpSp__Context ; [L95] int irpSp__Control ; [L96] long __cil_tmp23 ; [L99] status = 0 [L100] devExt = DeviceObject__DeviceExtension [L101] irpStack = Irp__Tail__Overlay__CurrentStackLocation VAL [DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=-2147483648, KernelMode=0, MPR1=5, MPR3=6, NP=1, SKIP1=3, SKIP2=4, UNLOADED=0, \old(DeviceObject)=0, \old(Irp)=0, compFptr=0, compRegistered=0, customIrp=0, devExt=0, devExt__TopOfStack=0, event=0, irpStack=-2147483648, irpStack__MinorFunction=0, lowerDriverReturn=0, myStatus=-1073741637, pended=0, s=1, setEventCalled=0, status=0] [L102] COND TRUE irpStack__MinorFunction == 0 [L168] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=-2147483648, KernelMode=0, MPR1=5, MPR3=6, NP=1, SKIP1=3, SKIP2=4, UNLOADED=0, \old(DeviceObject)=0, \old(Irp)=0, compFptr=0, compRegistered=0, customIrp=0, devExt=0, devExt__TopOfStack=0, event=0, irpSp=-2147483648, irpStack=-2147483648, irpStack__MinorFunction=0, lowerDriverReturn=0, myStatus=-1073741637, pended=0, s=1, setEventCalled=0, status=0] [L169] Irp__Tail__Overlay__CurrentStackLocation - 1 VAL [DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=-2147483648, KernelMode=0, MPR1=5, MPR3=6, NP=1, SKIP1=3, SKIP2=4, UNLOADED=0, \old(DeviceObject)=0, \old(Irp)=0, compFptr=0, compRegistered=0, customIrp=0, devExt=0, devExt__TopOfStack=0, event=0, irpSp=-2147483648, irpStack=-2147483648, irpStack__MinorFunction=0, lowerDriverReturn=0, myStatus=-1073741637, pended=0, s=1, setEventCalled=0, status=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 102.8MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 521.83ms. Allocated memory is still 151.0MB. Free memory was 106.6MB in the beginning and 113.1MB in the end (delta: -6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.44ms. Allocated memory is still 151.0MB. Free memory was 113.1MB in the beginning and 110.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.64ms. Allocated memory is still 151.0MB. Free memory was 110.9MB in the beginning and 108.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1122.37ms. Allocated memory is still 151.0MB. Free memory was 108.9MB in the beginning and 52.4MB in the end (delta: 56.5MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * CodeCheck took 551.51ms. Allocated memory is still 151.0MB. Free memory was 52.4MB in the beginning and 114.4MB in the end (delta: -62.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 116.53ms. Allocated memory is still 151.0MB. Free memory was 114.4MB in the beginning and 110.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 04:00:32,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b556bd67-8988-4451-829c-9a2bec40fef3/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)