./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e1cd75-4c27-4405-ac65-2df82aacafb0/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e1cd75-4c27-4405-ac65-2df82aacafb0/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e1cd75-4c27-4405-ac65-2df82aacafb0/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e1cd75-4c27-4405-ac65-2df82aacafb0/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e1cd75-4c27-4405-ac65-2df82aacafb0/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e1cd75-4c27-4405-ac65-2df82aacafb0/bin/utaipan-Q6hlc19bkW --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 a05fbc1d8a2048d37fda072c6a9d42f1f996d033c914869a4e2960aadff82dde --- 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-4e7fbc6 [2022-11-23 14:39:55,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:39:55,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:39:56,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:39:56,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:39:56,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:39:56,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:39:56,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:39:56,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:39:56,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:39:56,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:39:56,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:39:56,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:39:56,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:39:56,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:39:56,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:39:56,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:39:56,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:39:56,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:39:56,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:39:56,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:39:56,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:39:56,063 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:39:56,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:39:56,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:39:56,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:39:56,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:39:56,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:39:56,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:39:56,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:39:56,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:39:56,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:39:56,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:39:56,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:39:56,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:39:56,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:39:56,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:39:56,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:39:56,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:39:56,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:39:56,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:39:56,078 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e1cd75-4c27-4405-ac65-2df82aacafb0/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 14:39:56,101 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:39:56,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:39:56,102 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:39:56,102 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:39:56,103 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:39:56,103 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:39:56,103 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:39:56,104 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:39:56,104 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:39:56,104 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:39:56,104 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:39:56,105 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:39:56,105 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:39:56,105 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:39:56,105 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:39:56,106 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:39:56,106 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:39:56,106 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:39:56,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:39:56,107 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:39:56,108 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:39:56,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:39:56,108 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:39:56,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:39:56,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:39:56,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:39:56,109 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:39:56,109 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 14:39:56,110 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:39:56,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:39:56,110 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:39:56,110 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:39:56,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:39:56,111 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:39:56,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:39:56,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:39:56,112 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:39:56,112 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:39:56,112 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:39:56,112 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:39:56,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:39:56,113 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:39:56,113 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:39:56,113 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_a2e1cd75-4c27-4405-ac65-2df82aacafb0/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e1cd75-4c27-4405-ac65-2df82aacafb0/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a05fbc1d8a2048d37fda072c6a9d42f1f996d033c914869a4e2960aadff82dde [2022-11-23 14:39:56,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:39:56,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:39:56,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:39:56,473 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:39:56,474 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:39:56,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e1cd75-4c27-4405-ac65-2df82aacafb0/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2022-11-23 14:39:59,579 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:39:59,850 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:39:59,851 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e1cd75-4c27-4405-ac65-2df82aacafb0/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2022-11-23 14:39:59,867 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e1cd75-4c27-4405-ac65-2df82aacafb0/bin/utaipan-Q6hlc19bkW/data/7b0ca8f75/a5cd9a0148834850a56d82939e8253c7/FLAG7a460426b [2022-11-23 14:39:59,881 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e1cd75-4c27-4405-ac65-2df82aacafb0/bin/utaipan-Q6hlc19bkW/data/7b0ca8f75/a5cd9a0148834850a56d82939e8253c7 [2022-11-23 14:39:59,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:39:59,884 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:39:59,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:39:59,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:39:59,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:39:59,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:39:59" (1/1) ... [2022-11-23 14:39:59,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74547021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:59, skipping insertion in model container [2022-11-23 14:39:59,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:39:59" (1/1) ... [2022-11-23 14:39:59,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:39:59,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:40:00,206 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_a2e1cd75-4c27-4405-ac65-2df82aacafb0/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c[29656,29669] [2022-11-23 14:40:00,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:40:00,218 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:40:00,362 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_a2e1cd75-4c27-4405-ac65-2df82aacafb0/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c[29656,29669] [2022-11-23 14:40:00,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:40:00,382 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:40:00,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:00 WrapperNode [2022-11-23 14:40:00,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:40:00,384 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:40:00,384 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:40:00,384 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:40:00,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:00" (1/1) ... [2022-11-23 14:40:00,413 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:00" (1/1) ... [2022-11-23 14:40:00,458 INFO L138 Inliner]: procedures = 29, calls = 44, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 683 [2022-11-23 14:40:00,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:40:00,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:40:00,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:40:00,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:40:00,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:00" (1/1) ... [2022-11-23 14:40:00,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:00" (1/1) ... [2022-11-23 14:40:00,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:00" (1/1) ... [2022-11-23 14:40:00,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:00" (1/1) ... [2022-11-23 14:40:00,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:00" (1/1) ... [2022-11-23 14:40:00,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:00" (1/1) ... [2022-11-23 14:40:00,518 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:00" (1/1) ... [2022-11-23 14:40:00,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:00" (1/1) ... [2022-11-23 14:40:00,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:40:00,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:40:00,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:40:00,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:40:00,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:00" (1/1) ... [2022-11-23 14:40:00,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:40:00,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e1cd75-4c27-4405-ac65-2df82aacafb0/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:40:00,573 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e1cd75-4c27-4405-ac65-2df82aacafb0/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:40:00,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e1cd75-4c27-4405-ac65-2df82aacafb0/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:40:00,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:40:00,634 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2022-11-23 14:40:00,635 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2022-11-23 14:40:00,635 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-11-23 14:40:00,635 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-11-23 14:40:00,635 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2022-11-23 14:40:00,635 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2022-11-23 14:40:00,636 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-11-23 14:40:00,636 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-11-23 14:40:00,636 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-11-23 14:40:00,636 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-11-23 14:40:00,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:40:00,637 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-11-23 14:40:00,637 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-11-23 14:40:00,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:40:00,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:40:00,637 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2022-11-23 14:40:00,638 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2022-11-23 14:40:00,831 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:40:00,833 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:40:00,994 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-23 14:40:00,999 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-23 14:40:01,005 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-23 14:40:01,011 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-23 14:40:01,014 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-23 14:40:01,515 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume !false; [2022-11-23 14:40:01,515 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##86: assume false; [2022-11-23 14:40:01,515 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##63: assume !false; [2022-11-23 14:40:01,515 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##62: assume false; [2022-11-23 14:40:01,515 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##129: assume false; [2022-11-23 14:40:01,516 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##130: assume !false; [2022-11-23 14:40:01,516 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2022-11-23 14:40:01,516 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2022-11-23 14:40:01,516 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##113: assume !false; [2022-11-23 14:40:01,516 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##112: assume false; [2022-11-23 14:40:01,548 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-23 14:40:01,587 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2022-11-23 14:40:01,588 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2022-11-23 14:40:01,597 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:40:01,883 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:40:01,883 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 14:40:01,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:40:01 BoogieIcfgContainer [2022-11-23 14:40:01,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:40:01,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:40:01,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:40:01,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:40:01,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:39:59" (1/3) ... [2022-11-23 14:40:01,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eae21ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:40:01, skipping insertion in model container [2022-11-23 14:40:01,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:00" (2/3) ... [2022-11-23 14:40:01,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eae21ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:40:01, skipping insertion in model container [2022-11-23 14:40:01,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:40:01" (3/3) ... [2022-11-23 14:40:01,899 INFO L112 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2022-11-23 14:40:01,917 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:40:01,917 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-11-23 14:40:01,969 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:40:01,976 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;@22db8a00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:40:01,976 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-11-23 14:40:01,981 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 124 states have (on average 1.685483870967742) internal successors, (209), 165 states have internal predecessors, (209), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) [2022-11-23 14:40:01,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 14:40:01,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:40:01,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:40:01,991 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 14:40:01,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:40:01,995 INFO L85 PathProgramCache]: Analyzing trace with hash -957452278, now seen corresponding path program 1 times [2022-11-23 14:40:02,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:40:02,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612952814] [2022-11-23 14:40:02,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:40:02,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:40:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:40:02,190 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:40:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:40:02,260 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 14:40:02,262 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:40:02,264 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2022-11-23 14:40:02,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2022-11-23 14:40:02,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2022-11-23 14:40:02,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2022-11-23 14:40:02,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2022-11-23 14:40:02,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2022-11-23 14:40:02,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2022-11-23 14:40:02,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2022-11-23 14:40:02,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2022-11-23 14:40:02,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2022-11-23 14:40:02,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2022-11-23 14:40:02,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2022-11-23 14:40:02,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2022-11-23 14:40:02,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2022-11-23 14:40:02,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2022-11-23 14:40:02,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2022-11-23 14:40:02,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2022-11-23 14:40:02,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2022-11-23 14:40:02,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2022-11-23 14:40:02,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2022-11-23 14:40:02,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location KbFilter_DispatchPassThroughErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2022-11-23 14:40:02,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location KbFilter_DispatchPassThroughErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2022-11-23 14:40:02,296 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location KbFilter_DispatchPassThroughErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2022-11-23 14:40:02,296 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location KbFilter_DispatchPassThroughErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2022-11-23 14:40:02,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:40:02,301 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 14:40:02,306 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:40:02,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:40:02 BoogieIcfgContainer [2022-11-23 14:40:02,335 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:40:02,336 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:40:02,336 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:40:02,336 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:40:02,337 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:40:01" (3/4) ... [2022-11-23 14:40:02,339 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 14:40:02,398 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e1cd75-4c27-4405-ac65-2df82aacafb0/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:40:02,398 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:40:02,399 INFO L158 Benchmark]: Toolchain (without parser) took 2514.52ms. Allocated memory is still 163.6MB. Free memory was 125.5MB in the beginning and 122.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2022-11-23 14:40:02,400 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 111.1MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:40:02,400 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.07ms. Allocated memory is still 163.6MB. Free memory was 124.9MB in the beginning and 106.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 14:40:02,400 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.62ms. Allocated memory is still 163.6MB. Free memory was 106.0MB in the beginning and 102.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:40:02,401 INFO L158 Benchmark]: Boogie Preprocessor took 66.51ms. Allocated memory is still 163.6MB. Free memory was 102.4MB in the beginning and 99.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:40:02,401 INFO L158 Benchmark]: RCFGBuilder took 1360.11ms. Allocated memory is still 163.6MB. Free memory was 99.8MB in the beginning and 80.5MB in the end (delta: 19.2MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2022-11-23 14:40:02,402 INFO L158 Benchmark]: TraceAbstraction took 447.37ms. Allocated memory is still 163.6MB. Free memory was 79.4MB in the beginning and 125.6MB in the end (delta: -46.3MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2022-11-23 14:40:02,402 INFO L158 Benchmark]: Witness Printer took 62.05ms. Allocated memory is still 163.6MB. Free memory was 125.6MB in the beginning and 122.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:40:02,405 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 111.1MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 497.07ms. Allocated memory is still 163.6MB. Free memory was 124.9MB in the beginning and 106.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.62ms. Allocated memory is still 163.6MB. Free memory was 106.0MB in the beginning and 102.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.51ms. Allocated memory is still 163.6MB. Free memory was 102.4MB in the beginning and 99.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1360.11ms. Allocated memory is still 163.6MB. Free memory was 99.8MB in the beginning and 80.5MB in the end (delta: 19.2MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. * TraceAbstraction took 447.37ms. Allocated memory is still 163.6MB. Free memory was 79.4MB in the beginning and 125.6MB in the end (delta: -46.3MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. * Witness Printer took 62.05ms. Allocated memory is still 163.6MB. Free memory was 125.6MB in the beginning and 122.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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: 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: 173]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int KernelMode ; [L24] int Executive ; [L25] int DevicePowerState ; [L26] int s ; [L27] int UNLOADED ; [L28] int NP ; [L29] int DC ; [L30] int SKIP1 ; [L31] int SKIP2 ; [L32] int MPR1 ; [L33] int MPR3 ; [L34] int IPC ; [L35] int pended ; [L36] int compFptr ; [L37] int compRegistered ; [L38] int lowerDriverReturn ; [L39] int setEventCalled ; [L40] int customIrp ; [L41] int myStatus ; [L294] int status ; [L295] int irp = __VERIFIER_nondet_int() ; [L296] int pirp ; [L297] int pirp__IoStatus__Status ; [L298] int irp_choice = __VERIFIER_nondet_int() ; [L299] int devobj = __VERIFIER_nondet_int() ; [L300] int __cil_tmp8 ; [L302] KernelMode = 0 [L303] Executive = 0 [L304] DevicePowerState = 1 [L305] s = 0 [L306] UNLOADED = 0 [L307] NP = 0 [L308] DC = 0 [L309] SKIP1 = 0 [L310] SKIP2 = 0 [L311] MPR1 = 0 [L312] MPR3 = 0 [L313] IPC = 0 [L314] pended = 0 [L315] compFptr = 0 [L316] compRegistered = 0 [L317] lowerDriverReturn = 0 [L318] setEventCalled = 0 [L319] customIrp = 0 [L320] myStatus = 0 [L324] status = 0 [L325] pirp = irp [L326] CALL _BLAST_init() [L61] UNLOADED = 0 [L62] NP = 1 [L63] DC = 2 [L64] SKIP1 = 3 [L65] SKIP2 = 4 [L66] MPR1 = 5 [L67] MPR3 = 6 [L68] IPC = 7 [L69] s = UNLOADED [L70] pended = 0 [L71] compFptr = 0 [L72] compRegistered = 0 [L73] lowerDriverReturn = 0 [L74] setEventCalled = 0 [L75] customIrp = 0 [L326] RET _BLAST_init() [L328] COND TRUE status >= 0 [L329] s = NP [L330] customIrp = 0 [L331] setEventCalled = customIrp [L332] lowerDriverReturn = setEventCalled [L333] compRegistered = lowerDriverReturn [L334] pended = compRegistered [L335] pirp__IoStatus__Status = 0 [L336] myStatus = 0 [L337] COND FALSE !(irp_choice == 0) [L342] CALL stub_driver_init() [L47] s = NP [L48] pended = 0 [L49] compFptr = 0 [L50] compRegistered = 0 [L51] lowerDriverReturn = 0 [L52] setEventCalled = 0 [L53] customIrp = 0 [L342] RET stub_driver_init() [L345] COND FALSE !(status < 0) [L349] int tmp_ndt_1; [L350] tmp_ndt_1 = __VERIFIER_nondet_int() [L351] COND FALSE !(tmp_ndt_1 == 0) [L354] int tmp_ndt_2; [L355] tmp_ndt_2 = __VERIFIER_nondet_int() [L356] COND FALSE !(tmp_ndt_2 == 1) [L359] int tmp_ndt_3; [L360] tmp_ndt_3 = __VERIFIER_nondet_int() [L361] COND TRUE tmp_ndt_3 == 3 [L388] CALL KbFilter_PnP(devobj, pirp) [L80] int devExt ; [L81] int irpStack ; [L82] int status ; [L83] int event = __VERIFIER_nondet_int() ; [L84] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L85] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L86] int irpStack__MinorFunction = __VERIFIER_nondet_int() ; [L87] int devExt__TopOfStack = __VERIFIER_nondet_int() ; [L88] int devExt__Started ; [L89] int devExt__Removed ; [L90] int devExt__SurpriseRemoved ; [L91] int Irp__IoStatus__Status ; [L92] int Irp__IoStatus__Information ; [L93] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L94] int irpSp ; [L95] int nextIrpSp ; [L96] int nextIrpSp__Control ; [L97] int irpSp___0 ; [L98] int irpSp__Context ; [L99] int irpSp__Control ; [L100] long __cil_tmp23 ; [L103] status = 0 [L104] devExt = DeviceObject__DeviceExtension [L105] irpStack = Irp__Tail__Overlay__CurrentStackLocation VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-2, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=-2, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=-2147483648, irpStack=-2147483648, irpStack__MinorFunction=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, unknown-#in~DeviceObject-unknown=0, unknown-#in~Irp-unknown=0, UNLOADED=0] [L106] COND TRUE irpStack__MinorFunction == 0 [L172] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-2, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=-2, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=-2147483648, irpSp=-2147483648, irpStack=-2147483648, irpStack__MinorFunction=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, unknown-#in~DeviceObject-unknown=0, unknown-#in~Irp-unknown=0, UNLOADED=0] [L173] Irp__Tail__Overlay__CurrentStackLocation - 1 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-2, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=-2, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=-2147483648, irpSp=-2147483648, irpStack=-2147483648, irpStack__MinorFunction=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, unknown-#in~DeviceObject-unknown=0, unknown-#in~Irp-unknown=0, UNLOADED=0] - UnprovableResult [Line: 173]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 189]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 189]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 229]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 229]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 230]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 230]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 245]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 245]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 246]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 246]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 260]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 260]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 261]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 261]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 738]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 738]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 739]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 739]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 683]: 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 CFG has 8 procedures, 185 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=185occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 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! [2022-11-23 14:40:02,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e1cd75-4c27-4405-ac65-2df82aacafb0/bin/utaipan-Q6hlc19bkW/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)