./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_5fa9a5e6-c06c-4df3-9082-6c409431f58d/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa9a5e6-c06c-4df3-9082-6c409431f58d/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa9a5e6-c06c-4df3-9082-6c409431f58d/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa9a5e6-c06c-4df3-9082-6c409431f58d/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.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_5fa9a5e6-c06c-4df3-9082-6c409431f58d/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa9a5e6-c06c-4df3-9082-6c409431f58d/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e2e7bb75a4a041a1b509d755288a88858836cab5db2230ae4fd0db7ec04fe254 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:08:33,808 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:08:33,919 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa9a5e6-c06c-4df3-9082-6c409431f58d/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-25 00:08:33,939 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:08:33,940 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:08:33,986 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:08:33,987 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:08:33,987 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:08:33,988 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:08:33,989 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:08:33,989 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:08:33,990 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:08:33,990 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:08:33,991 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:08:33,991 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:08:33,992 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:08:33,992 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:08:33,993 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:08:34,001 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:08:34,002 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:08:34,002 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:08:34,003 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:08:34,004 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:08:34,004 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:08:34,005 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:08:34,005 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:08:34,006 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:08:34,006 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:08:34,006 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:08:34,007 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:08:34,007 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:08:34,007 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-25 00:08:34,008 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:08:34,008 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:08:34,008 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:08:34,009 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:08:34,009 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:08:34,009 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:08:34,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:08:34,010 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:08:34,010 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:08:34,010 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:08:34,010 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:08:34,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:08:34,011 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:08:34,011 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:08:34,011 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:08:34,011 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:08:34,012 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5fa9a5e6-c06c-4df3-9082-6c409431f58d/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa9a5e6-c06c-4df3-9082-6c409431f58d/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2e7bb75a4a041a1b509d755288a88858836cab5db2230ae4fd0db7ec04fe254 [2023-11-25 00:08:34,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:08:34,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:08:34,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:08:34,330 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:08:34,331 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:08:34,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa9a5e6-c06c-4df3-9082-6c409431f58d/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2023-11-25 00:08:37,467 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:08:38,129 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:08:38,129 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa9a5e6-c06c-4df3-9082-6c409431f58d/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2023-11-25 00:08:38,175 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa9a5e6-c06c-4df3-9082-6c409431f58d/bin/utaipan-verify-SwPr7d2a91/data/4b68c270c/db205e689abf44588737a36d0f2f7a18/FLAGe32afc71b [2023-11-25 00:08:38,191 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa9a5e6-c06c-4df3-9082-6c409431f58d/bin/utaipan-verify-SwPr7d2a91/data/4b68c270c/db205e689abf44588737a36d0f2f7a18 [2023-11-25 00:08:38,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:08:38,196 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:08:38,197 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:08:38,198 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:08:38,206 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:08:38,207 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:08:38" (1/1) ... [2023-11-25 00:08:38,208 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3109e544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:38, skipping insertion in model container [2023-11-25 00:08:38,208 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:08:38" (1/1) ... [2023-11-25 00:08:38,354 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:08:44,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:08:44,424 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:08:44,690 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] [2023-11-25 00:08:44,692 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] [2023-11-25 00:08:44,693 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] [2023-11-25 00:08:44,693 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] [2023-11-25 00:08:44,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] [2023-11-25 00:08:44,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:08:45,710 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:08:45,711 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:08:45,711 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:08:45,711 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:08:45,711 WARN L675 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:08:45,711 WARN L675 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:08:45,720 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:08:45,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:45 WrapperNode [2023-11-25 00:08:45,721 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:08:45,722 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:08:45,722 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:08:45,722 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:08:45,730 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:45" (1/1) ... [2023-11-25 00:08:45,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:45" (1/1) ... [2023-11-25 00:08:45,989 INFO L138 Inliner]: procedures = 1353, calls = 1467, calls flagged for inlining = 348, calls inlined = 20, statements flattened = 591 [2023-11-25 00:08:45,990 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:08:45,991 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:08:45,991 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:08:45,991 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:08:46,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:45" (1/1) ... [2023-11-25 00:08:46,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:45" (1/1) ... [2023-11-25 00:08:46,009 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:45" (1/1) ... [2023-11-25 00:08:46,010 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:45" (1/1) ... [2023-11-25 00:08:46,042 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:45" (1/1) ... [2023-11-25 00:08:46,047 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:45" (1/1) ... [2023-11-25 00:08:46,054 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:45" (1/1) ... [2023-11-25 00:08:46,059 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:45" (1/1) ... [2023-11-25 00:08:46,071 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:08:46,072 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:08:46,072 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:08:46,072 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:08:46,073 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:45" (1/1) ... [2023-11-25 00:08:46,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:08:46,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa9a5e6-c06c-4df3-9082-6c409431f58d/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:08:46,127 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa9a5e6-c06c-4df3-9082-6c409431f58d/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:08:46,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa9a5e6-c06c-4df3-9082-6c409431f58d/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:08:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:08:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-25 00:08:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:08:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:08:46,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:08:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-25 00:08:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:08:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:08:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2023-11-25 00:08:46,184 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2023-11-25 00:08:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-25 00:08:46,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:08:46,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-25 00:08:46,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:08:46,185 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2023-11-25 00:08:46,185 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2023-11-25 00:08:46,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:08:46,187 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-25 00:08:46,717 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:08:46,720 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:08:47,574 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:08:47,791 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:08:47,791 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-25 00:08:47,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:08:47 BoogieIcfgContainer [2023-11-25 00:08:47,794 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:08:47,797 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:08:47,798 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:08:47,801 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:08:47,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:08:38" (1/3) ... [2023-11-25 00:08:47,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a76fe64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:08:47, skipping insertion in model container [2023-11-25 00:08:47,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:45" (2/3) ... [2023-11-25 00:08:47,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a76fe64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:08:47, skipping insertion in model container [2023-11-25 00:08:47,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:08:47" (3/3) ... [2023-11-25 00:08:47,806 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2023-11-25 00:08:47,816 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-25 00:08:47,827 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:08:47,828 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2023-11-25 00:08:47,828 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-25 00:08:48,014 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-25 00:08:48,056 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 583 places, 595 transitions, 1204 flow [2023-11-25 00:08:52,806 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 148492 states, 148217 states have (on average 3.0056336317696353) internal successors, (445486), 148491 states have internal predecessors, (445486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:08:52,836 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:08:52,843 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=FINITE_AUTOMATA, 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;@5775c9ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:08:52,843 INFO L358 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2023-11-25 00:08:53,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 148492 states, 148217 states have (on average 3.0056336317696353) internal successors, (445486), 148491 states have internal predecessors, (445486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:08:53,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-25 00:08:53,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:08:53,014 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:08:53,015 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_read_nvramErr1ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_read_nvramErr2ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-11-25 00:08:53,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:08:53,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1291343365, now seen corresponding path program 1 times [2023-11-25 00:08:53,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:08:53,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085624348] [2023-11-25 00:08:53,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:08:53,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:08:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:08:53,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:08:53,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:08:53,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085624348] [2023-11-25 00:08:53,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085624348] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:08:53,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:08:53,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:08:53,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403158260] [2023-11-25 00:08:53,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:08:53,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:08:53,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:08:53,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:08:53,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:08:54,140 INFO L87 Difference]: Start difference. First operand has 148492 states, 148217 states have (on average 3.0056336317696353) internal successors, (445486), 148491 states have internal predecessors, (445486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 34.0) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:08:56,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:08:56,312 INFO L93 Difference]: Finished difference Result 131939 states and 389712 transitions. [2023-11-25 00:08:56,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:08:56,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 34.0) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-11-25 00:08:56,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:08:57,281 INFO L225 Difference]: With dead ends: 131939 [2023-11-25 00:08:57,282 INFO L226 Difference]: Without dead ends: 131854 [2023-11-25 00:08:57,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:08:57,287 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 2 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:08:57,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1095 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-25 00:08:57,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131854 states. [2023-11-25 00:09:02,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131854 to 131854. [2023-11-25 00:09:02,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131854 states, 131700 states have (on average 2.9571222475322703) internal successors, (389453), 131853 states have internal predecessors, (389453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:09:04,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131854 states to 131854 states and 389453 transitions. [2023-11-25 00:09:04,110 INFO L78 Accepts]: Start accepts. Automaton has 131854 states and 389453 transitions. Word has length 68 [2023-11-25 00:09:04,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:09:04,111 INFO L495 AbstractCegarLoop]: Abstraction has 131854 states and 389453 transitions. [2023-11-25 00:09:04,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 34.0) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:09:04,111 INFO L276 IsEmpty]: Start isEmpty. Operand 131854 states and 389453 transitions. [2023-11-25 00:09:04,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-25 00:09:04,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:09:04,115 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:09:04,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:09:04,115 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_read_nvramErr1ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_read_nvramErr2ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-11-25 00:09:04,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:09:04,116 INFO L85 PathProgramCache]: Analyzing trace with hash 831120267, now seen corresponding path program 1 times [2023-11-25 00:09:04,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:09:04,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120705558] [2023-11-25 00:09:04,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:09:04,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:09:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:09:04,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:09:04,299 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:09:04,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120705558] [2023-11-25 00:09:04,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120705558] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:09:04,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:09:04,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:09:04,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437618655] [2023-11-25 00:09:04,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:09:04,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:09:04,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:09:04,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:09:04,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:09:04,309 INFO L87 Difference]: Start difference. First operand 131854 states and 389453 transitions. Second operand has 3 states, 2 states have (on average 37.5) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:09:05,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:09:05,355 INFO L93 Difference]: Finished difference Result 131853 states and 389452 transitions. [2023-11-25 00:09:05,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:09:05,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 37.5) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2023-11-25 00:09:05,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:09:06,506 INFO L225 Difference]: With dead ends: 131853 [2023-11-25 00:09:06,507 INFO L226 Difference]: Without dead ends: 131853 [2023-11-25 00:09:06,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:09:06,509 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 2 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:09:06,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1088 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:09:06,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131853 states. [2023-11-25 00:09:09,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131853 to 131853. [2023-11-25 00:09:09,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131853 states, 131700 states have (on average 2.9571146545178437) internal successors, (389452), 131852 states have internal predecessors, (389452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:09:11,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131853 states to 131853 states and 389452 transitions. [2023-11-25 00:09:11,090 INFO L78 Accepts]: Start accepts. Automaton has 131853 states and 389452 transitions. Word has length 75 [2023-11-25 00:09:11,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:09:11,094 INFO L495 AbstractCegarLoop]: Abstraction has 131853 states and 389452 transitions. [2023-11-25 00:09:11,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 37.5) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:09:11,095 INFO L276 IsEmpty]: Start isEmpty. Operand 131853 states and 389452 transitions. [2023-11-25 00:09:11,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-25 00:09:11,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:09:11,109 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:09:11,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-25 00:09:11,113 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_read_nvramErr1ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_read_nvramErr2ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-11-25 00:09:11,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:09:11,115 INFO L85 PathProgramCache]: Analyzing trace with hash -649236899, now seen corresponding path program 1 times [2023-11-25 00:09:11,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:09:11,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562981127] [2023-11-25 00:09:11,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:09:11,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:09:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:09:11,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:09:11,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:09:11,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562981127] [2023-11-25 00:09:11,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562981127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:09:11,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:09:11,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:09:11,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051459308] [2023-11-25 00:09:11,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:09:11,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:09:11,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:09:11,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:09:11,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:09:11,404 INFO L87 Difference]: Start difference. First operand 131853 states and 389452 transitions. Second operand has 3 states, 2 states have (on average 41.0) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:09:12,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:09:12,368 INFO L93 Difference]: Finished difference Result 131852 states and 389451 transitions. [2023-11-25 00:09:12,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:09:12,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 41.0) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-11-25 00:09:12,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:09:13,170 INFO L225 Difference]: With dead ends: 131852 [2023-11-25 00:09:13,171 INFO L226 Difference]: Without dead ends: 131852 [2023-11-25 00:09:13,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:09:13,178 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 2 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:09:13,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1089 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:09:14,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131852 states. [2023-11-25 00:09:16,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131852 to 131852. [2023-11-25 00:09:17,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131852 states, 131700 states have (on average 2.9571070615034167) internal successors, (389451), 131851 states have internal predecessors, (389451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:09:18,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131852 states to 131852 states and 389451 transitions. [2023-11-25 00:09:18,396 INFO L78 Accepts]: Start accepts. Automaton has 131852 states and 389451 transitions. Word has length 82 [2023-11-25 00:09:18,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:09:18,397 INFO L495 AbstractCegarLoop]: Abstraction has 131852 states and 389451 transitions. [2023-11-25 00:09:18,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 41.0) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:09:18,397 INFO L276 IsEmpty]: Start isEmpty. Operand 131852 states and 389451 transitions. [2023-11-25 00:09:18,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-25 00:09:18,400 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:09:18,400 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:09:18,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-25 00:09:18,400 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_read_nvramErr1ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_read_nvramErr2ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-11-25 00:09:18,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:09:18,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1898421611, now seen corresponding path program 1 times [2023-11-25 00:09:18,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:09:18,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038735695] [2023-11-25 00:09:18,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:09:18,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:09:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:09:18,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:09:18,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:09:18,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038735695] [2023-11-25 00:09:18,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038735695] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:09:18,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:09:18,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:09:18,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927370524] [2023-11-25 00:09:18,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:09:18,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:09:18,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:09:18,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:09:18,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:09:18,609 INFO L87 Difference]: Start difference. First operand 131852 states and 389451 transitions. Second operand has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:09:19,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:09:19,349 INFO L93 Difference]: Finished difference Result 131851 states and 389450 transitions. [2023-11-25 00:09:19,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:09:19,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-11-25 00:09:19,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted.