./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_605c9a9f-00fb-4419-9d0b-9051fe128951/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_605c9a9f-00fb-4419-9d0b-9051fe128951/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_605c9a9f-00fb-4419-9d0b-9051fe128951/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_605c9a9f-00fb-4419-9d0b-9051fe128951/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_605c9a9f-00fb-4419-9d0b-9051fe128951/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_605c9a9f-00fb-4419-9d0b-9051fe128951/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 423d8d6205a6cc6142dcdd2c64b72565885efc66c9127b3f2569a3e2890b0e68 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:16:55,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:16:55,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:16:55,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:16:55,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:16:55,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:16:55,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:16:55,100 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:16:55,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:16:55,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:16:55,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:16:55,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:16:55,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:16:55,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:16:55,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:16:55,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:16:55,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:16:55,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:16:55,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:16:55,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:16:55,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:16:55,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:16:55,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:16:55,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:16:55,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:16:55,157 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:16:55,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:16:55,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:16:55,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:16:55,161 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:16:55,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:16:55,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:16:55,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:16:55,166 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:16:55,168 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:16:55,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:16:55,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:16:55,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:16:55,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:16:55,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:16:55,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:16:55,184 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_605c9a9f-00fb-4419-9d0b-9051fe128951/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 02:16:55,206 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:16:55,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:16:55,207 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:16:55,207 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:16:55,208 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:16:55,208 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:16:55,208 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:16:55,208 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:16:55,209 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:16:55,209 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:16:55,209 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:16:55,209 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:16:55,209 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:16:55,209 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:16:55,210 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:16:55,210 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:16:55,210 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:16:55,210 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:16:55,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:16:55,211 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:16:55,211 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:16:55,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:16:55,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:16:55,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:16:55,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:16:55,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:16:55,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:16:55,213 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 02:16:55,213 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:16:55,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:16:55,213 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:16:55,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:16:55,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:16:55,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:16:55,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:16:55,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:16:55,214 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:16:55,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:16:55,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:16:55,215 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:16:55,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:16:55,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:16:55,215 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:16:55,216 INFO L138 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_605c9a9f-00fb-4419-9d0b-9051fe128951/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_605c9a9f-00fb-4419-9d0b-9051fe128951/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 423d8d6205a6cc6142dcdd2c64b72565885efc66c9127b3f2569a3e2890b0e68 [2022-11-22 02:16:55,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:16:55,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:16:55,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:16:55,474 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:16:55,474 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:16:55,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_605c9a9f-00fb-4419-9d0b-9051fe128951/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i [2022-11-22 02:16:58,523 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:16:59,061 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:16:59,062 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_605c9a9f-00fb-4419-9d0b-9051fe128951/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i [2022-11-22 02:16:59,111 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_605c9a9f-00fb-4419-9d0b-9051fe128951/bin/utaipan-g80aRyZoba/data/f7c75213c/645c033f7fa04eb1939a2336cc40d640/FLAG01981f7c0 [2022-11-22 02:16:59,129 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_605c9a9f-00fb-4419-9d0b-9051fe128951/bin/utaipan-g80aRyZoba/data/f7c75213c/645c033f7fa04eb1939a2336cc40d640 [2022-11-22 02:16:59,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:16:59,136 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:16:59,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:16:59,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:16:59,143 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:16:59,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:16:59" (1/1) ... [2022-11-22 02:16:59,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@194a181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:59, skipping insertion in model container [2022-11-22 02:16:59,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:16:59" (1/1) ... [2022-11-22 02:16:59,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:16:59,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:16:59,716 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_605c9a9f-00fb-4419-9d0b-9051fe128951/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i[5469,5482] [2022-11-22 02:17:03,474 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-22 02:17:04,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:17:04,301 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:17:04,329 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_605c9a9f-00fb-4419-9d0b-9051fe128951/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i[5469,5482] [2022-11-22 02:17:04,775 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-22 02:17:04,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:17:05,410 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:17:05,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:05 WrapperNode [2022-11-22 02:17:05,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:17:05,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:17:05,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:17:05,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:17:05,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:05" (1/1) ... [2022-11-22 02:17:05,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:05" (1/1) ... [2022-11-22 02:17:05,617 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 15, statements flattened = 318 [2022-11-22 02:17:05,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:17:05,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:17:05,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:17:05,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:17:05,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:05" (1/1) ... [2022-11-22 02:17:05,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:05" (1/1) ... [2022-11-22 02:17:05,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:05" (1/1) ... [2022-11-22 02:17:05,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:05" (1/1) ... [2022-11-22 02:17:05,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:05" (1/1) ... [2022-11-22 02:17:05,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:05" (1/1) ... [2022-11-22 02:17:05,690 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:05" (1/1) ... [2022-11-22 02:17:05,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:05" (1/1) ... [2022-11-22 02:17:05,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:17:05,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:17:05,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:17:05,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:17:05,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:05" (1/1) ... [2022-11-22 02:17:05,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:17:05,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_605c9a9f-00fb-4419-9d0b-9051fe128951/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:17:05,747 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_605c9a9f-00fb-4419-9d0b-9051fe128951/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:17:05,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_605c9a9f-00fb-4419-9d0b-9051fe128951/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:17:05,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:17:05,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:17:05,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:17:05,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:17:05,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:17:05,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 02:17:05,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:17:05,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:17:05,798 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2022-11-22 02:17:05,798 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2022-11-22 02:17:05,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:17:05,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:17:05,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:17:05,798 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_llseek [2022-11-22 02:17:05,799 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_llseek [2022-11-22 02:17:05,801 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 02:17:06,412 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:17:06,414 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:17:07,032 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:17:07,046 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:17:07,050 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 02:17:07,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:17:07 BoogieIcfgContainer [2022-11-22 02:17:07,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:17:07,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:17:07,058 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:17:07,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:17:07,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:16:59" (1/3) ... [2022-11-22 02:17:07,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cfa3d9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:17:07, skipping insertion in model container [2022-11-22 02:17:07,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:05" (2/3) ... [2022-11-22 02:17:07,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cfa3d9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:17:07, skipping insertion in model container [2022-11-22 02:17:07,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:17:07" (3/3) ... [2022-11-22 02:17:07,066 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_llseek_read_nvram.i [2022-11-22 02:17:07,075 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 02:17:07,086 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:17:07,086 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-22 02:17:07,086 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 02:17:07,228 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-22 02:17:07,282 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:17:07,308 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 367 places, 375 transitions, 766 flow [2022-11-22 02:17:07,317 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 367 places, 375 transitions, 766 flow [2022-11-22 02:17:07,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 367 places, 375 transitions, 766 flow [2022-11-22 02:17:07,523 INFO L130 PetriNetUnfolder]: 15/373 cut-off events. [2022-11-22 02:17:07,524 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-22 02:17:07,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 373 events. 15/373 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 404 event pairs, 0 based on Foata normal form. 0/354 useless extension candidates. Maximal degree in co-relation 299. Up to 5 conditions per place. [2022-11-22 02:17:07,548 INFO L119 LiptonReduction]: Number of co-enabled transitions 14106 [2022-11-22 02:18:37,317 WARN L233 SmtUtils]: Spent 30.74s on a formula simplification that was a NOOP. DAG size: 496 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:19:02,806 WARN L233 SmtUtils]: Spent 25.47s on a formula simplification that was a NOOP. DAG size: 426 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:19:30,884 WARN L233 SmtUtils]: Spent 28.07s on a formula simplification that was a NOOP. DAG size: 499 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:19:55,691 WARN L233 SmtUtils]: Spent 24.79s on a formula simplification that was a NOOP. DAG size: 429 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:22:27,478 WARN L233 SmtUtils]: Spent 2.53m on a formula simplification. DAG size of input: 519 DAG size of output: 515 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:24:07,209 WARN L233 SmtUtils]: Spent 1.66m on a formula simplification that was a NOOP. DAG size: 503 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:27:55,923 WARN L233 SmtUtils]: Spent 3.81m on a formula simplification. DAG size of input: 532 DAG size of output: 528 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:29:06,118 WARN L233 SmtUtils]: Spent 1.17m on a formula simplification that was a NOOP. DAG size: 516 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:29:06,122 INFO L134 LiptonReduction]: Checked pairs total: 16032 [2022-11-22 02:29:06,122 INFO L136 LiptonReduction]: Total number of compositions: 438 [2022-11-22 02:29:06,131 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 27 transitions, 70 flow [2022-11-22 02:29:06,158 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 72 states, 68 states have (on average 2.6323529411764706) internal successors, (179), 71 states have internal predecessors, (179), 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) [2022-11-22 02:29:06,186 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:29:06,199 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=LoopsAndPotentialCycles, 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;@2cb9a223, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:29:06,199 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-22 02:29:06,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 68 states have (on average 2.6323529411764706) internal successors, (179), 71 states have internal predecessors, (179), 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) [2022-11-22 02:29:06,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:29:06,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:29:06,214 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:29:06,215 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-22 02:29:06,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:29:06,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1365683733, now seen corresponding path program 1 times [2022-11-22 02:29:06,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:29:06,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389950417] [2022-11-22 02:29:06,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:29:06,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:29:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:29:06,910 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:29:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:29:07,074 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:29:07,091 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:29:07,092 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-22 02:29:07,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2022-11-22 02:29:07,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 10 remaining) [2022-11-22 02:29:07,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-22 02:29:07,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-11-22 02:29:07,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-11-22 02:29:07,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-22 02:29:07,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-22 02:29:07,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-22 02:29:07,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-22 02:29:07,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:29:07,109 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-22 02:29:07,122 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 02:29:07,122 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:29:07,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:29:07 BasicIcfg [2022-11-22 02:29:07,194 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:29:07,195 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:29:07,195 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:29:07,195 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:29:07,196 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:17:07" (3/4) ... [2022-11-22 02:29:07,198 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-22 02:29:07,282 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_605c9a9f-00fb-4419-9d0b-9051fe128951/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:29:07,283 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:29:07,284 INFO L158 Benchmark]: Toolchain (without parser) took 728147.93ms. Allocated memory was 144.7MB in the beginning and 262.1MB in the end (delta: 117.4MB). Free memory was 104.3MB in the beginning and 70.2MB in the end (delta: 34.0MB). Peak memory consumption was 153.3MB. Max. memory is 16.1GB. [2022-11-22 02:29:07,284 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:29:07,285 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6272.00ms. Allocated memory was 144.7MB in the beginning and 180.4MB in the end (delta: 35.7MB). Free memory was 104.3MB in the beginning and 113.9MB in the end (delta: -9.6MB). Peak memory consumption was 83.5MB. Max. memory is 16.1GB. [2022-11-22 02:29:07,286 INFO L158 Benchmark]: Boogie Procedure Inliner took 207.15ms. Allocated memory is still 180.4MB. Free memory was 113.9MB in the beginning and 104.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 02:29:07,287 INFO L158 Benchmark]: Boogie Preprocessor took 94.36ms. Allocated memory is still 180.4MB. Free memory was 104.5MB in the beginning and 100.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 02:29:07,291 INFO L158 Benchmark]: RCFGBuilder took 1340.31ms. Allocated memory is still 180.4MB. Free memory was 100.3MB in the beginning and 113.5MB in the end (delta: -13.2MB). Peak memory consumption was 44.4MB. Max. memory is 16.1GB. [2022-11-22 02:29:07,292 INFO L158 Benchmark]: TraceAbstraction took 720136.62ms. Allocated memory was 180.4MB in the beginning and 262.1MB in the end (delta: 81.8MB). Free memory was 112.5MB in the beginning and 79.7MB in the end (delta: 32.8MB). Peak memory consumption was 115.6MB. Max. memory is 16.1GB. [2022-11-22 02:29:07,293 INFO L158 Benchmark]: Witness Printer took 88.04ms. Allocated memory is still 262.1MB. Free memory was 79.7MB in the beginning and 70.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-22 02:29:07,296 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 6272.00ms. Allocated memory was 144.7MB in the beginning and 180.4MB in the end (delta: 35.7MB). Free memory was 104.3MB in the beginning and 113.9MB in the end (delta: -9.6MB). Peak memory consumption was 83.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 207.15ms. Allocated memory is still 180.4MB. Free memory was 113.9MB in the beginning and 104.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.36ms. Allocated memory is still 180.4MB. Free memory was 104.5MB in the beginning and 100.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1340.31ms. Allocated memory is still 180.4MB. Free memory was 100.3MB in the beginning and 113.5MB in the end (delta: -13.2MB). Peak memory consumption was 44.4MB. Max. memory is 16.1GB. * TraceAbstraction took 720136.62ms. Allocated memory was 180.4MB in the beginning and 262.1MB in the end (delta: 81.8MB). Free memory was 112.5MB in the beginning and 79.7MB in the end (delta: 32.8MB). Peak memory consumption was 115.6MB. Max. memory is 16.1GB. * Witness Printer took 88.04ms. Allocated memory is still 262.1MB. Free memory was 79.7MB in the beginning and 70.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 718.8s, 367 PlacesBefore, 30 PlacesAfterwards, 375 TransitionsBefore, 27 TransitionsAfterwards, 14106 CoEnabledTransitionPairs, 10 FixpointIterations, 202 TrivialSequentialCompositions, 175 ConcurrentSequentialCompositions, 17 TrivialYvCompositions, 33 ConcurrentYvCompositions, 11 ChoiceCompositions, 438 TotalNumberOfCompositions, 16032 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13799, independent: 13653, independent conditional: 0, independent unconditional: 13653, dependent: 142, dependent conditional: 0, dependent unconditional: 142, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10214, independent: 10162, independent conditional: 0, independent unconditional: 10162, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10214, independent: 10144, independent conditional: 0, independent unconditional: 10144, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 70, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2435, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 239, dependent conditional: 0, dependent unconditional: 239, unknown: 2135, unknown conditional: 0, unknown unconditional: 2135] ], Cache Queries: [ total: 13799, independent: 3491, independent conditional: 0, independent unconditional: 3491, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 10217, unknown conditional: 0, unknown unconditional: 10217] , Statistics on independence cache: Total cache size (in pairs): 115, Positive cache size: 102, Positive conditional cache size: 0, Positive unconditional cache size: 102, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 6694]: integer overflow possible integer overflow possible We found a FailurePath: [L246] 0 unsigned long jiffies; [L6519] 0 const unsigned int default_alloc_size = 4; [L6686] 0 static struct mutex nvram_mutex = { 1, 0 }; [L6687] 0 static ssize_t nvram_len; [L6762-L6768] 0 struct file_operations nvram_fops = { .owner = ((struct module *)0), .llseek = nvram_llseek, .read = read_nvram, .write = write_nvram, .unlocked_ioctl = nvram_unlocked_ioctl, }; [L6769-L6773] 0 static struct miscdevice nvram_dev = { 144, "nvram", &nvram_fops }; [L6792] 0 int (* _whoop_init)(void) = nvram_init; [L6793] 0 void (* _whoop_exit)(void) = nvram_cleanup; [L6794] 0 struct inode *whoop_inode_0; [L6795] 0 struct file *whoop_file_0; [L6796] 0 struct inode *whoop_inode_1; [L6797] 0 struct file *whoop_file_1; [L6798] 0 struct inode *whoop_inode_2; [L6799] 0 struct file *whoop_file_2; [L6800] 0 struct inode *whoop_inode_3; [L6801] 0 struct file *whoop_file_3; [L6802] 0 struct inode *whoop_inode_4; [L6803] 0 struct file *whoop_file_4; [L6804] 0 struct pci_dev *whoop_pci_dev; [L6805] 0 char *whoop_buf; [L6806] 0 struct platform_device *whoop_platform_device; [L6807] 0 struct vm_area_struct *whoop_vm_area_struct; [L6808] 0 struct cx_dev *whoop_cx_dev; [L6809] 0 poll_table *whoop_poll_table; [L6810] 0 loff_t *whoop_loff_t; [L6811] 0 int whoop_int; [L6839] 0 whoop_inode_0 = (struct inode *) malloc(sizeof(struct inode)) [L6840] 0 whoop_file_0 = (struct file *) malloc(sizeof(struct file)) [L6841] 0 whoop_inode_1 = (struct inode *) malloc(sizeof(struct inode)) [L6842] 0 whoop_file_1 = (struct file *) malloc(sizeof(struct file)) [L6843] 0 whoop_inode_2 = (struct inode *) malloc(sizeof(struct inode)) [L6844] 0 whoop_file_2 = (struct file *) malloc(sizeof(struct file)) [L6845] 0 whoop_inode_3 = (struct inode *) malloc(sizeof(struct inode)) [L6846] 0 whoop_file_3 = (struct file *) malloc(sizeof(struct file)) [L6847] 0 whoop_inode_4 = (struct inode *) malloc(sizeof(struct inode)) [L6848] 0 whoop_file_4 = (struct file *) malloc(sizeof(struct file)) [L6849] 0 whoop_pci_dev = (struct pci_dev *) malloc(sizeof(struct pci_dev)) [L6850] 0 whoop_buf = (char *) malloc(sizeof(char)) [L6851] 0 whoop_platform_device = (struct platform_device *) malloc(sizeof(struct platform_device)) [L6852] 0 whoop_vm_area_struct = (struct vm_area_struct *) malloc(sizeof(struct vm_area_struct)) [L6853] 0 whoop_cx_dev = (struct cx_dev *) malloc(sizeof(struct cx_dev)) [L6854] 0 whoop_poll_table = (poll_table *) malloc(sizeof(poll_table)) [L6855] 0 whoop_loff_t = (loff_t *) malloc(sizeof(loff_t)) [L6856] 0 whoop_int = __VERIFIER_nondet_int() [L6857] CALL 0 assume_abort_if_not(whoop_int >= 0) [L170] COND FALSE 0 !(!cond) [L6857] RET 0 assume_abort_if_not(whoop_int >= 0) [L6858] CALL, EXPR 0 _whoop_init() [L6776] 0 int ret = 0; [L6777-L6778] CALL 0 printk("\001" "6" "Generic non-volatile memory driver v%s\n", "1.1") [L6647] 0 return __VERIFIER_nondet_int(); [L6777-L6778] RET 0 printk("\001" "6" "Generic non-volatile memory driver v%s\n", "1.1") [L6779] CALL, EXPR 0 misc_register(&nvram_dev) [L6621] 0 return __VERIFIER_nondet_int(); [L6779] RET, EXPR 0 misc_register(&nvram_dev) [L6779] 0 ret = misc_register(&nvram_dev) [L6780] COND TRUE 0 ret != 0 [L6786] 0 return ret; [L6858] RET, EXPR 0 _whoop_init() [L6858] 0 int _whoop_init_result = _whoop_init(); [L6859] 0 pthread_t pthread_t_read_nvram; [L6860] 0 pthread_t pthread_t_nvram_llseek; [L6861] FCALL, FORK 0 pthread_create(&pthread_t_read_nvram, ((void *)0), whoop_wrapper_read_nvram, ((void *)0)) VAL [={-1:5}, ={-1:4}, _whoop_init_result=13, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=0, nvram_mutex={7:0}, pthread_create(&pthread_t_read_nvram, ((void *)0), whoop_wrapper_read_nvram, ((void *)0))=-1, pthread_t_nvram_llseek={11:0}, pthread_t_read_nvram={10:0}, whoop_buf={-8:0}, whoop_cx_dev={-9:0}, whoop_file_0={-12:0}, whoop_file_1={-15:0}, whoop_file_2={-16:0}, whoop_file_3={-18:0}, whoop_file_4={-7:0}, whoop_inode_0={-10:0}, whoop_inode_1={-4:0}, whoop_inode_2={-14:0}, whoop_inode_3={-3:0}, whoop_inode_4={-11:0}, whoop_int=1, whoop_loff_t={-6:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-17:0}, whoop_poll_table={-2:0}, whoop_vm_area_struct={-13:0}] [L6862] FCALL, FORK 0 pthread_create(&pthread_t_nvram_llseek, ((void *)0), whoop_wrapper_nvram_llseek, ((void *)0)) VAL [={-1:5}, ={-1:4}, _whoop_init_result=13, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=0, nvram_mutex={7:0}, pthread_create(&pthread_t_nvram_llseek, ((void *)0), whoop_wrapper_nvram_llseek, ((void *)0))=0, pthread_t_nvram_llseek={11:0}, pthread_t_read_nvram={10:0}, whoop_buf={-8:0}, whoop_cx_dev={-9:0}, whoop_file_0={-12:0}, whoop_file_1={-15:0}, whoop_file_2={-16:0}, whoop_file_3={-18:0}, whoop_file_4={-7:0}, whoop_inode_0={-10:0}, whoop_inode_1={-4:0}, whoop_inode_2={-14:0}, whoop_inode_3={-3:0}, whoop_inode_4={-11:0}, whoop_int=1, whoop_loff_t={-6:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-17:0}, whoop_poll_table={-2:0}, whoop_vm_area_struct={-13:0}] [L6829] CALL 2 nvram_llseek(whoop_file_3, __VERIFIER_nondet_long(), whoop_int) [L6691] 2 case 0: [L6693] 2 case 1: [L6694] EXPR 2 file->f_pos [L6694] 2 offset += file->f_pos VAL [={-1:5}, ={-1:4}, \old(offset)=0, \old(origin)=1, default_alloc_size=4, file={-18:0}, file={-18:0}, file->f_pos=-9223372036854775809, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=0, nvram_mutex={7:0}, offset=0, origin=1, whoop_buf={-8:0}, whoop_cx_dev={-9:0}, whoop_file_0={-12:0}, whoop_file_1={-15:0}, whoop_file_2={-16:0}, whoop_file_3={-18:0}, whoop_file_4={-7:0}, whoop_inode_0={-10:0}, whoop_inode_1={-4:0}, whoop_inode_2={-14:0}, whoop_inode_3={-3:0}, whoop_inode_4={-11:0}, whoop_int=1, whoop_loff_t={-6:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-17:0}, whoop_poll_table={-2:0}, whoop_vm_area_struct={-13:0}] - UnprovableResult [Line: 6862]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 6861]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 6694]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 6697]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 6697]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 510 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 719.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 718.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-22 02:29:07,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_605c9a9f-00fb-4419-9d0b-9051fe128951/bin/utaipan-g80aRyZoba/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)