./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 48b194ce99c1fa112b5c4d4ed6cc0216b9fbb33f6f6efd57d62e9c27b1f7eb5c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:29:42,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:29:42,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:29:42,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:29:42,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:29:42,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:29:42,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:29:42,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:29:42,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:29:42,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:29:42,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:29:42,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:29:42,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:29:42,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:29:42,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:29:42,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:29:42,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:29:42,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:29:42,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:29:42,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:29:42,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:29:42,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:29:42,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:29:42,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:29:42,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:29:42,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:29:42,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:29:42,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:29:42,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:29:42,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:29:42,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:29:42,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:29:42,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:29:42,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:29:42,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:29:42,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:29:42,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:29:42,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:29:42,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:29:42,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:29:42,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:29:42,280 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:29:42,304 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:29:42,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:29:42,305 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:29:42,305 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:29:42,305 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:29:42,306 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:29:42,306 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:29:42,306 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:29:42,306 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:29:42,307 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:29:42,307 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:29:42,307 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:29:42,307 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:29:42,308 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:29:42,308 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:29:42,308 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:29:42,308 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:29:42,308 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:29:42,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:29:42,309 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:29:42,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:29:42,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:29:42,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:29:42,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:29:42,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:29:42,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:29:42,311 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:29:42,311 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:29:42,311 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:29:42,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:29:42,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:29:42,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:29:42,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:29:42,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:29:42,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:29:42,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:29:42,313 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:29:42,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:29:42,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:29:42,314 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:29:42,314 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:29:42,314 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48b194ce99c1fa112b5c4d4ed6cc0216b9fbb33f6f6efd57d62e9c27b1f7eb5c [2021-11-23 17:29:42,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:29:42,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:29:42,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:29:42,618 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:29:42,619 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:29:42,621 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c [2021-11-23 17:29:42,706 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/data/8c1357a6c/34e40478a89b49c9a067d8c19b6441ad/FLAG03cc11e00 [2021-11-23 17:29:43,267 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:29:43,268 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c [2021-11-23 17:29:43,283 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/data/8c1357a6c/34e40478a89b49c9a067d8c19b6441ad/FLAG03cc11e00 [2021-11-23 17:29:43,575 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/data/8c1357a6c/34e40478a89b49c9a067d8c19b6441ad [2021-11-23 17:29:43,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:29:43,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:29:43,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:29:43,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:29:43,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:29:43,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:29:43" (1/1) ... [2021-11-23 17:29:43,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73e1f5bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:43, skipping insertion in model container [2021-11-23 17:29:43,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:29:43" (1/1) ... [2021-11-23 17:29:43,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:29:43,670 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:29:43,892 WARN L230 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_1e4f5290-36e3-4a31-870f-ff09eb3acba8/sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c[2072,2085] [2021-11-23 17:29:44,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:29:44,093 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:29:44,128 WARN L230 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_1e4f5290-36e3-4a31-870f-ff09eb3acba8/sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c[2072,2085] [2021-11-23 17:29:44,194 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:29:44,211 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:29:44,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:44 WrapperNode [2021-11-23 17:29:44,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:29:44,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:29:44,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:29:44,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:29:44,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:44" (1/1) ... [2021-11-23 17:29:44,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:44" (1/1) ... [2021-11-23 17:29:44,315 INFO L137 Inliner]: procedures = 38, calls = 66, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 755 [2021-11-23 17:29:44,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:29:44,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:29:44,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:29:44,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:29:44,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:44" (1/1) ... [2021-11-23 17:29:44,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:44" (1/1) ... [2021-11-23 17:29:44,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:44" (1/1) ... [2021-11-23 17:29:44,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:44" (1/1) ... [2021-11-23 17:29:44,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:44" (1/1) ... [2021-11-23 17:29:44,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:44" (1/1) ... [2021-11-23 17:29:44,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:44" (1/1) ... [2021-11-23 17:29:44,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:29:44,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:29:44,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:29:44,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:29:44,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:44" (1/1) ... [2021-11-23 17:29:44,407 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:29:44,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:29:44,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:29:44,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:29:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:29:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2021-11-23 17:29:44,483 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2021-11-23 17:29:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-11-23 17:29:44,483 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-11-23 17:29:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-11-23 17:29:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-11-23 17:29:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2021-11-23 17:29:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2021-11-23 17:29:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfForwardIrpSynchronous [2021-11-23 17:29:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfForwardIrpSynchronous [2021-11-23 17:29:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-11-23 17:29:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-11-23 17:29:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:29:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-11-23 17:29:44,485 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-11-23 17:29:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfIrpCompletion [2021-11-23 17:29:44,485 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfIrpCompletion [2021-11-23 17:29:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfIoCompletion [2021-11-23 17:29:44,485 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfIoCompletion [2021-11-23 17:29:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:29:44,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:29:44,693 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:29:44,695 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:29:44,701 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 17:29:44,818 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-11-23 17:29:44,818 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-11-23 17:29:44,820 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 17:29:44,848 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-11-23 17:29:44,848 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-11-23 17:29:44,921 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 17:29:44,929 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 17:29:44,944 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 17:29:45,435 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2021-11-23 17:29:45,435 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2021-11-23 17:29:45,436 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2021-11-23 17:29:45,436 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2021-11-23 17:29:45,436 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##106: assume !false; [2021-11-23 17:29:45,436 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##105: assume false; [2021-11-23 17:29:45,438 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 17:29:45,484 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2021-11-23 17:29:45,484 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2021-11-23 17:29:45,557 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:29:45,646 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:29:45,656 INFO L158 Benchmark]: Toolchain (without parser) took 2067.44ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 56.1MB in the beginning and 63.5MB in the end (delta: -7.4MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2021-11-23 17:29:45,657 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 98.6MB. Free memory was 73.5MB in the beginning and 73.5MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:29:45,659 INFO L158 Benchmark]: CACSL2BoogieTranslator took 621.60ms. Allocated memory is still 98.6MB. Free memory was 55.8MB in the beginning and 62.5MB in the end (delta: -6.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:29:45,661 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.56ms. Allocated memory is still 98.6MB. Free memory was 62.5MB in the beginning and 58.1MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:29:45,662 INFO L158 Benchmark]: Boogie Preprocessor took 74.90ms. Allocated memory is still 98.6MB. Free memory was 57.9MB in the beginning and 55.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:29:45,663 INFO L158 Benchmark]: RCFGBuilder took 1254.84ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 54.8MB in the beginning and 63.5MB in the end (delta: -8.7MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2021-11-23 17:29:45,672 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 98.6MB. Free memory was 73.5MB in the beginning and 73.5MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 621.60ms. Allocated memory is still 98.6MB. Free memory was 55.8MB in the beginning and 62.5MB in the end (delta: -6.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 108.56ms. Allocated memory is still 98.6MB. Free memory was 62.5MB in the beginning and 58.1MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.90ms. Allocated memory is still 98.6MB. Free memory was 57.9MB in the beginning and 55.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1254.84ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 54.8MB in the beginning and 63.5MB in the end (delta: -8.7MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:29:45,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 48b194ce99c1fa112b5c4d4ed6cc0216b9fbb33f6f6efd57d62e9c27b1f7eb5c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:29:48,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:29:48,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:29:48,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:29:48,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:29:48,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:29:48,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:29:48,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:29:48,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:29:48,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:29:48,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:29:48,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:29:48,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:29:48,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:29:48,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:29:48,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:29:48,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:29:48,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:29:48,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:29:48,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:29:48,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:29:48,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:29:48,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:29:48,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:29:48,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:29:48,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:29:48,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:29:48,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:29:48,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:29:48,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:29:48,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:29:48,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:29:48,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:29:48,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:29:48,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:29:48,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:29:48,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:29:48,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:29:48,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:29:48,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:29:48,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:29:48,413 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:29:48,460 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:29:48,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:29:48,461 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:29:48,461 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:29:48,462 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:29:48,463 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:29:48,463 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:29:48,463 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:29:48,463 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:29:48,464 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:29:48,465 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:29:48,465 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:29:48,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:29:48,467 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:29:48,467 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:29:48,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:29:48,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:29:48,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:29:48,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:29:48,469 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:29:48,469 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:29:48,469 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:29:48,469 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:29:48,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:29:48,470 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:29:48,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:29:48,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:29:48,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:29:48,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:29:48,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:29:48,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:29:48,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:29:48,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:29:48,472 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:29:48,473 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:29:48,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:29:48,473 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:29:48,473 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:29:48,474 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48b194ce99c1fa112b5c4d4ed6cc0216b9fbb33f6f6efd57d62e9c27b1f7eb5c [2021-11-23 17:29:48,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:29:48,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:29:48,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:29:48,925 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:29:48,927 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:29:48,929 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c [2021-11-23 17:29:49,013 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/data/040e009de/a11904ca55d743e7a6cbe80a11ec2bdd/FLAGd4392d387 [2021-11-23 17:29:49,727 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:29:49,728 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c [2021-11-23 17:29:49,740 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/data/040e009de/a11904ca55d743e7a6cbe80a11ec2bdd/FLAGd4392d387 [2021-11-23 17:29:49,998 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/data/040e009de/a11904ca55d743e7a6cbe80a11ec2bdd [2021-11-23 17:29:50,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:29:50,002 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:29:50,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:29:50,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:29:50,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:29:50,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:29:49" (1/1) ... [2021-11-23 17:29:50,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11198162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:50, skipping insertion in model container [2021-11-23 17:29:50,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:29:49" (1/1) ... [2021-11-23 17:29:50,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:29:50,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:29:50,244 WARN L230 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_1e4f5290-36e3-4a31-870f-ff09eb3acba8/sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c[2072,2085] [2021-11-23 17:29:50,389 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:29:50,403 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:29:50,420 WARN L230 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_1e4f5290-36e3-4a31-870f-ff09eb3acba8/sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c[2072,2085] [2021-11-23 17:29:50,498 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:29:50,516 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:29:50,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:50 WrapperNode [2021-11-23 17:29:50,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:29:50,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:29:50,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:29:50,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:29:50,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:50" (1/1) ... [2021-11-23 17:29:50,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:50" (1/1) ... [2021-11-23 17:29:50,617 INFO L137 Inliner]: procedures = 38, calls = 66, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 668 [2021-11-23 17:29:50,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:29:50,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:29:50,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:29:50,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:29:50,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:50" (1/1) ... [2021-11-23 17:29:50,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:50" (1/1) ... [2021-11-23 17:29:50,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:50" (1/1) ... [2021-11-23 17:29:50,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:50" (1/1) ... [2021-11-23 17:29:50,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:50" (1/1) ... [2021-11-23 17:29:50,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:50" (1/1) ... [2021-11-23 17:29:50,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:50" (1/1) ... [2021-11-23 17:29:50,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:29:50,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:29:50,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:29:50,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:29:50,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:50" (1/1) ... [2021-11-23 17:29:50,765 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:29:50,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:29:50,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:29:50,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:29:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:29:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:29:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2021-11-23 17:29:50,828 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2021-11-23 17:29:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-11-23 17:29:50,828 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-11-23 17:29:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-11-23 17:29:50,828 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-11-23 17:29:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2021-11-23 17:29:50,829 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2021-11-23 17:29:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfForwardIrpSynchronous [2021-11-23 17:29:50,829 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfForwardIrpSynchronous [2021-11-23 17:29:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-11-23 17:29:50,829 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-11-23 17:29:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-11-23 17:29:50,830 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-11-23 17:29:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfIrpCompletion [2021-11-23 17:29:50,830 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfIrpCompletion [2021-11-23 17:29:50,831 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfIoCompletion [2021-11-23 17:29:50,831 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfIoCompletion [2021-11-23 17:29:50,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:29:50,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:29:51,006 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:29:51,008 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:29:51,015 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 17:29:51,088 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-11-23 17:29:51,088 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-11-23 17:29:51,090 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 17:29:51,152 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-11-23 17:29:51,152 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-11-23 17:29:51,241 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 17:29:51,258 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 17:29:51,280 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 17:29:51,790 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2021-11-23 17:29:51,790 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2021-11-23 17:29:51,790 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2021-11-23 17:29:51,790 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2021-11-23 17:29:51,790 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##106: assume !false; [2021-11-23 17:29:51,791 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##105: assume false; [2021-11-23 17:29:51,792 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 17:29:51,832 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2021-11-23 17:29:51,832 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2021-11-23 17:29:51,918 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:29:51,937 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:29:51,937 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:29:51,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:29:51 BoogieIcfgContainer [2021-11-23 17:29:51,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:29:51,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:29:51,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:29:51,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:29:51,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:29:49" (1/3) ... [2021-11-23 17:29:51,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714e8fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:29:51, skipping insertion in model container [2021-11-23 17:29:51,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:50" (2/3) ... [2021-11-23 17:29:51,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714e8fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:29:51, skipping insertion in model container [2021-11-23 17:29:51,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:29:51" (3/3) ... [2021-11-23 17:29:51,949 INFO L111 eAbstractionObserver]: Analyzing ICFG diskperf_simpl1.cil.c [2021-11-23 17:29:51,956 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:29:51,956 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:29:52,010 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:29:52,016 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 17:29:52,017 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:29:52,044 INFO L276 IsEmpty]: Start isEmpty. Operand has 243 states, 188 states have (on average 1.4680851063829787) internal successors, (276), 205 states have internal predecessors, (276), 44 states have call successors, (44), 9 states have call predecessors, (44), 9 states have return successors, (44), 40 states have call predecessors, (44), 44 states have call successors, (44) [2021-11-23 17:29:52,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 17:29:52,050 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:29:52,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:29:52,051 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:29:52,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:29:52,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1911400740, now seen corresponding path program 1 times [2021-11-23 17:29:52,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:29:52,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1601582017] [2021-11-23 17:29:52,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:29:52,073 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:29:52,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:29:52,076 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:29:52,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:29:52,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:29:52,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:29:52,374 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:29:52,379 INFO L158 Benchmark]: Toolchain (without parser) took 2375.39ms. Allocated memory was 48.2MB in the beginning and 83.9MB in the end (delta: 35.7MB). Free memory was 29.8MB in the beginning and 47.2MB in the end (delta: -17.4MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2021-11-23 17:29:52,379 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 48.2MB. Free memory is still 27.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:29:52,380 INFO L158 Benchmark]: CACSL2BoogieTranslator took 513.67ms. Allocated memory was 48.2MB in the beginning and 67.1MB in the end (delta: 18.9MB). Free memory was 29.7MB in the beginning and 39.9MB in the end (delta: -10.2MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2021-11-23 17:29:52,381 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.64ms. Allocated memory is still 67.1MB. Free memory was 39.9MB in the beginning and 35.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:29:52,381 INFO L158 Benchmark]: Boogie Preprocessor took 123.31ms. Allocated memory is still 67.1MB. Free memory was 35.8MB in the beginning and 46.9MB in the end (delta: -11.2MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2021-11-23 17:29:52,382 INFO L158 Benchmark]: RCFGBuilder took 1198.48ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 46.9MB in the beginning and 59.4MB in the end (delta: -12.4MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2021-11-23 17:29:52,383 INFO L158 Benchmark]: TraceAbstraction took 434.00ms. Allocated memory is still 83.9MB. Free memory was 58.9MB in the beginning and 47.2MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:29:52,387 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 48.2MB. Free memory is still 27.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 513.67ms. Allocated memory was 48.2MB in the beginning and 67.1MB in the end (delta: 18.9MB). Free memory was 29.7MB in the beginning and 39.9MB in the end (delta: -10.2MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.64ms. Allocated memory is still 67.1MB. Free memory was 39.9MB in the beginning and 35.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 123.31ms. Allocated memory is still 67.1MB. Free memory was 35.8MB in the beginning and 46.9MB in the end (delta: -11.2MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * RCFGBuilder took 1198.48ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 46.9MB in the beginning and 59.4MB in the end (delta: -12.4MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * TraceAbstraction took 434.00ms. Allocated memory is still 83.9MB. Free memory was 58.9MB in the beginning and 47.2MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:29:52,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4f5290-36e3-4a31-870f-ff09eb3acba8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable