./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbcdaf-9569-4d89-95a8-5bb1935062c5/bin/ugemcutter-verify-ztSkJzofpW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbcdaf-9569-4d89-95a8-5bb1935062c5/bin/ugemcutter-verify-ztSkJzofpW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbcdaf-9569-4d89-95a8-5bb1935062c5/bin/ugemcutter-verify-ztSkJzofpW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbcdaf-9569-4d89-95a8-5bb1935062c5/bin/ugemcutter-verify-ztSkJzofpW/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbcdaf-9569-4d89-95a8-5bb1935062c5/bin/ugemcutter-verify-ztSkJzofpW/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbcdaf-9569-4d89-95a8-5bb1935062c5/bin/ugemcutter-verify-ztSkJzofpW --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e2e7bb75a4a041a1b509d755288a88858836cab5db2230ae4fd0db7ec04fe254 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-17 22:50:12,214 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 22:50:12,329 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbcdaf-9569-4d89-95a8-5bb1935062c5/bin/ugemcutter-verify-ztSkJzofpW/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2023-11-17 22:50:12,340 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-17 22:50:12,341 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-17 22:50:12,381 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 22:50:12,383 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-17 22:50:12,384 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-17 22:50:12,385 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 22:50:12,390 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 22:50:12,391 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 22:50:12,392 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 22:50:12,392 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 22:50:12,394 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 22:50:12,395 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 22:50:12,395 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 22:50:12,396 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 22:50:12,396 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 22:50:12,396 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 22:50:12,397 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 22:50:12,397 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 22:50:12,398 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 22:50:12,398 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-17 22:50:12,399 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-17 22:50:12,399 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 22:50:12,399 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 22:50:12,400 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 22:50:12,400 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 22:50:12,401 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 22:50:12,401 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 22:50:12,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 22:50:12,403 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 22:50:12,403 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 22:50:12,403 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 22:50:12,403 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 22:50:12,404 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-17 22:50:12,404 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 22:50:12,404 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-17 22:50:12,405 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-17 22:50:12,405 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-17 22:50:12,406 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-17 22:50:12,406 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-17 22:50:12,406 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-17 22:50:12,406 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_14fbcdaf-9569-4d89-95a8-5bb1935062c5/bin/ugemcutter-verify-ztSkJzofpW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbcdaf-9569-4d89-95a8-5bb1935062c5/bin/ugemcutter-verify-ztSkJzofpW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2e7bb75a4a041a1b509d755288a88858836cab5db2230ae4fd0db7ec04fe254 [2023-11-17 22:50:12,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 22:50:12,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 22:50:12,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 22:50:12,734 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 22:50:12,734 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 22:50:12,735 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbcdaf-9569-4d89-95a8-5bb1935062c5/bin/ugemcutter-verify-ztSkJzofpW/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2023-11-17 22:50:15,908 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 22:50:16,556 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 22:50:16,557 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbcdaf-9569-4d89-95a8-5bb1935062c5/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2023-11-17 22:50:16,608 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbcdaf-9569-4d89-95a8-5bb1935062c5/bin/ugemcutter-verify-ztSkJzofpW/data/dfe125883/e96a58519160455fb09943c7dc69e3af/FLAG82d44455b [2023-11-17 22:50:16,626 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbcdaf-9569-4d89-95a8-5bb1935062c5/bin/ugemcutter-verify-ztSkJzofpW/data/dfe125883/e96a58519160455fb09943c7dc69e3af [2023-11-17 22:50:16,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 22:50:16,633 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-17 22:50:16,637 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 22:50:16,637 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 22:50:16,643 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 22:50:16,644 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:50:16" (1/1) ... [2023-11-17 22:50:16,645 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65fb1d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:16, skipping insertion in model container [2023-11-17 22:50:16,646 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:50:16" (1/1) ... [2023-11-17 22:50:16,815 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 22:50:21,303 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-17 22:50:22,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 22:50:22,165 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 22:50:22,312 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] [2023-11-17 22:50:22,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] [2023-11-17 22:50:22,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] [2023-11-17 22:50:22,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] [2023-11-17 22:50:22,414 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-17 22:50:22,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] [2023-11-17 22:50:22,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 22:50:23,192 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 22:50:23,193 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 22:50:23,193 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 22:50:23,193 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 22:50:23,193 WARN L675 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 22:50:23,193 WARN L675 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 22:50:23,193 WARN L675 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 22:50:23,201 INFO L206 MainTranslator]: Completed translation [2023-11-17 22:50:23,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:23 WrapperNode [2023-11-17 22:50:23,202 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 22:50:23,203 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 22:50:23,203 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 22:50:23,204 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 22:50:23,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:23" (1/1) ... [2023-11-17 22:50:23,334 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:23" (1/1) ... [2023-11-17 22:50:23,412 INFO L138 Inliner]: procedures = 1354, calls = 1469, calls flagged for inlining = 348, calls inlined = 20, statements flattened = 383 [2023-11-17 22:50:23,413 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 22:50:23,414 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 22:50:23,414 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 22:50:23,414 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 22:50:23,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:23" (1/1) ... [2023-11-17 22:50:23,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:23" (1/1) ... [2023-11-17 22:50:23,439 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:23" (1/1) ... [2023-11-17 22:50:23,441 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:23" (1/1) ... [2023-11-17 22:50:23,476 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:23" (1/1) ... [2023-11-17 22:50:23,493 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:23" (1/1) ... [2023-11-17 22:50:23,499 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:23" (1/1) ... [2023-11-17 22:50:23,517 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:23" (1/1) ... [2023-11-17 22:50:23,525 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 22:50:23,539 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 22:50:23,539 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 22:50:23,539 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 22:50:23,540 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:23" (1/1) ... [2023-11-17 22:50:23,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 22:50:23,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbcdaf-9569-4d89-95a8-5bb1935062c5/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:50:23,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbcdaf-9569-4d89-95a8-5bb1935062c5/bin/ugemcutter-verify-ztSkJzofpW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-17 22:50:23,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbcdaf-9569-4d89-95a8-5bb1935062c5/bin/ugemcutter-verify-ztSkJzofpW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-17 22:50:23,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 22:50:23,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-17 22:50:23,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 22:50:23,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 22:50:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 22:50:23,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-17 22:50:23,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 22:50:23,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 22:50:23,626 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2023-11-17 22:50:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2023-11-17 22:50:23,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-17 22:50:23,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 22:50:23,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-17 22:50:23,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-17 22:50:23,628 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2023-11-17 22:50:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2023-11-17 22:50:23,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 22:50:23,630 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 22:50:24,100 INFO L236 CfgBuilder]: Building ICFG [2023-11-17 22:50:24,102 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 22:50:24,776 INFO L277 CfgBuilder]: Performing block encoding [2023-11-17 22:50:24,860 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 22:50:24,860 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-17 22:50:24,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:50:24 BoogieIcfgContainer [2023-11-17 22:50:24,867 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 22:50:24,870 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 22:50:24,870 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 22:50:24,873 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 22:50:24,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 10:50:16" (1/3) ... [2023-11-17 22:50:24,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fda1a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 10:50:24, skipping insertion in model container [2023-11-17 22:50:24,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:50:23" (2/3) ... [2023-11-17 22:50:24,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fda1a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 10:50:24, skipping insertion in model container [2023-11-17 22:50:24,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:50:24" (3/3) ... [2023-11-17 22:50:24,876 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2023-11-17 22:50:24,888 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-17 22:50:24,897 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 22:50:24,898 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-11-17 22:50:24,898 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fda1a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 10:50:24, skipping insertion in model container [2023-11-17 22:50:24,898 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 22:50:24,899 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-17 22:50:24,899 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-17 22:50:24,900 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-17 22:50:24,900 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:50:24" (3/3) ... [2023-11-17 22:50:24,902 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-17 22:50:24,906 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_read_nvram [2023-11-17 22:50:24,906 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_write_nvram [2023-11-17 22:50:24,914 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2023-11-17 22:50:24,915 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-17 22:50:24,915 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-17 22:50:24,916 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-17 22:50:24,917 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-17 22:50:25,037 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbcdaf-9569-4d89-95a8-5bb1935062c5/bin/ugemcutter-verify-ztSkJzofpW/witness.graphml [2023-11-17 22:50:25,037 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbcdaf-9569-4d89-95a8-5bb1935062c5/bin/ugemcutter-verify-ztSkJzofpW/witness.yml [2023-11-17 22:50:25,038 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-17 22:50:25,039 INFO L158 Benchmark]: Toolchain (without parser) took 8405.52ms. Allocated memory was 138.4MB in the beginning and 209.7MB in the end (delta: 71.3MB). Free memory was 84.8MB in the beginning and 134.9MB in the end (delta: -50.2MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2023-11-17 22:50:25,040 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 111.1MB. Free memory is still 59.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-17 22:50:25,041 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6565.69ms. Allocated memory was 138.4MB in the beginning and 169.9MB in the end (delta: 31.5MB). Free memory was 84.8MB in the beginning and 54.3MB in the end (delta: 30.5MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. [2023-11-17 22:50:25,041 INFO L158 Benchmark]: Boogie Procedure Inliner took 210.18ms. Allocated memory is still 169.9MB. Free memory was 54.3MB in the beginning and 102.9MB in the end (delta: -48.6MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2023-11-17 22:50:25,042 INFO L158 Benchmark]: Boogie Preprocessor took 123.77ms. Allocated memory is still 169.9MB. Free memory was 102.9MB in the beginning and 98.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-17 22:50:25,042 INFO L158 Benchmark]: RCFGBuilder took 1328.62ms. Allocated memory was 169.9MB in the beginning and 209.7MB in the end (delta: 39.8MB). Free memory was 97.6MB in the beginning and 144.0MB in the end (delta: -46.4MB). Peak memory consumption was 55.0MB. Max. memory is 16.1GB. [2023-11-17 22:50:25,043 INFO L158 Benchmark]: TraceAbstraction took 29.05ms. Allocated memory is still 209.7MB. Free memory was 143.3MB in the beginning and 141.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-17 22:50:25,043 INFO L158 Benchmark]: Witness Printer took 138.46ms. Allocated memory is still 209.7MB. Free memory was 141.2MB in the beginning and 134.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-17 22:50:25,046 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 111.1MB. Free memory is still 59.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 6565.69ms. Allocated memory was 138.4MB in the beginning and 169.9MB in the end (delta: 31.5MB). Free memory was 84.8MB in the beginning and 54.3MB in the end (delta: 30.5MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 210.18ms. Allocated memory is still 169.9MB. Free memory was 54.3MB in the beginning and 102.9MB in the end (delta: -48.6MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 123.77ms. Allocated memory is still 169.9MB. Free memory was 102.9MB in the beginning and 98.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1328.62ms. Allocated memory was 169.9MB in the beginning and 209.7MB in the end (delta: 39.8MB). Free memory was 97.6MB in the beginning and 144.0MB in the end (delta: -46.4MB). Peak memory consumption was 55.0MB. Max. memory is 16.1GB. * TraceAbstraction took 29.05ms. Allocated memory is still 209.7MB. Free memory was 143.3MB in the beginning and 141.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 138.46ms. Allocated memory is still 209.7MB. Free memory was 141.2MB in the beginning and 134.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 5814]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specification because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2023-11-17 22:50:25,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14fbcdaf-9569-4d89-95a8-5bb1935062c5/bin/ugemcutter-verify-ztSkJzofpW/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: TRUE