./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--maps--l440gx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d06d5f4c-d386-4cf4-8864-6a1af9f16276/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d06d5f4c-d386-4cf4-8864-6a1af9f16276/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d06d5f4c-d386-4cf4-8864-6a1af9f16276/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d06d5f4c-d386-4cf4-8864-6a1af9f16276/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--maps--l440gx.ko-entry_point.cil.out.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d06d5f4c-d386-4cf4-8864-6a1af9f16276/bin/utaipan/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d06d5f4c-d386-4cf4-8864-6a1af9f16276/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 87e27adac98915060e53237657dfc041be38d769 ............................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 19:30:36,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:30:36,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:30:36,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:30:36,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:30:36,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:30:36,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:30:36,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:30:36,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:30:36,427 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:30:36,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:30:36,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:30:36,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:30:36,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:30:36,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:30:36,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:30:36,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:30:36,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:30:36,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:30:36,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:30:36,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:30:36,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:30:36,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:30:36,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:30:36,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:30:36,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:30:36,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:30:36,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:30:36,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:30:36,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:30:36,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:30:36,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:30:36,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:30:36,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:30:36,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:30:36,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:30:36,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:30:36,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:30:36,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:30:36,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:30:36,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:30:36,447 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d06d5f4c-d386-4cf4-8864-6a1af9f16276/bin/utaipan/config/svcomp-Reach-64bit-Taipan_Default.epf [2019-12-07 19:30:36,460 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:30:36,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:30:36,461 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:30:36,461 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:30:36,461 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:30:36,461 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:30:36,461 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 19:30:36,462 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:30:36,462 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:30:36,462 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 19:30:36,462 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 19:30:36,462 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:30:36,462 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 19:30:36,463 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 19:30:36,463 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 19:30:36,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:30:36,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 19:30:36,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:30:36,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:30:36,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:30:36,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:30:36,464 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:30:36,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:30:36,464 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:30:36,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:30:36,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:30:36,464 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:30:36,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:30:36,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:30:36,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:30:36,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:30:36,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:30:36,465 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 19:30:36,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 19:30:36,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:30:36,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:30:36,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:30:36,466 INFO L138 SettingsManager]: * To the following directory=dump/ [2019-12-07 19:30:36,466 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/run_dir_d06d5f4c-d386-4cf4-8864-6a1af9f16276/bin/utaipan 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(__VERIFIER_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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87e27adac98915060e53237657dfc041be38d769 [2019-12-07 19:30:36,572 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:30:36,580 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:30:36,582 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:30:36,583 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:30:36,583 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:30:36,583 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d06d5f4c-d386-4cf4-8864-6a1af9f16276/bin/utaipan/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--maps--l440gx.ko-entry_point.cil.out.i [2019-12-07 19:30:36,622 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d06d5f4c-d386-4cf4-8864-6a1af9f16276/bin/utaipan/data/6d675147f/e20a596c528446b3ab9e81512e6561d8/FLAGd5c8b81ea [2019-12-07 19:30:37,095 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:30:37,095 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d06d5f4c-d386-4cf4-8864-6a1af9f16276/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--maps--l440gx.ko-entry_point.cil.out.i [2019-12-07 19:30:37,110 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d06d5f4c-d386-4cf4-8864-6a1af9f16276/bin/utaipan/data/6d675147f/e20a596c528446b3ab9e81512e6561d8/FLAGd5c8b81ea [2019-12-07 19:30:37,400 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d06d5f4c-d386-4cf4-8864-6a1af9f16276/bin/utaipan/data/6d675147f/e20a596c528446b3ab9e81512e6561d8 [2019-12-07 19:30:37,404 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:30:37,406 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:30:37,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:30:37,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:30:37,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:30:37,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:30:37" (1/1) ... [2019-12-07 19:30:37,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ab2505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:37, skipping insertion in model container [2019-12-07 19:30:37,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:30:37" (1/1) ... [2019-12-07 19:30:37,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:30:37,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:30:37,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:30:37,956 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 19:30:38,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:30:38,088 INFO L208 MainTranslator]: Completed translation [2019-12-07 19:30:38,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:38 WrapperNode [2019-12-07 19:30:38,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:30:38,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 19:30:38,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 19:30:38,089 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 19:30:38,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:38" (1/1) ... [2019-12-07 19:30:38,113 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:38" (1/1) ... [2019-12-07 19:30:38,151 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 19:30:38,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 19:30:38,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 19:30:38,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 19:30:38,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:38" (1/1) ... [2019-12-07 19:30:38,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:38" (1/1) ... [2019-12-07 19:30:38,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:38" (1/1) ... [2019-12-07 19:30:38,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:38" (1/1) ... [2019-12-07 19:30:38,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:38" (1/1) ... [2019-12-07 19:30:38,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:38" (1/1) ... [2019-12-07 19:30:38,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:38" (1/1) ... [2019-12-07 19:30:38,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 19:30:38,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 19:30:38,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 19:30:38,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 19:30:38,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d06d5f4c-d386-4cf4-8864-6a1af9f16276/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:30:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 19:30:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 19:30:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 19:30:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 19:30:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 19:30:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-12-07 19:30:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 19:30:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 19:30:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 19:30:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 19:30:38,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 19:30:39,571 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 19:30:39,571 INFO L287 CfgBuilder]: Removed 102 assume(true) statements. [2019-12-07 19:30:39,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:30:39 BoogieIcfgContainer [2019-12-07 19:30:39,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 19:30:39,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 19:30:39,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 19:30:39,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 19:30:39,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 07:30:37" (1/3) ... [2019-12-07 19:30:39,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c834bbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:30:39, skipping insertion in model container [2019-12-07 19:30:39,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:30:38" (2/3) ... [2019-12-07 19:30:39,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c834bbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:30:39, skipping insertion in model container [2019-12-07 19:30:39,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:30:39" (3/3) ... [2019-12-07 19:30:39,577 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--maps--l440gx.ko-entry_point.cil.out.i [2019-12-07 19:30:39,584 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 19:30:39,589 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 19:30:39,596 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 19:30:39,612 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 19:30:39,612 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 19:30:39,612 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 19:30:39,612 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 19:30:39,613 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 19:30:39,613 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 19:30:39,613 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 19:30:39,613 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 19:30:39,623 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-12-07 19:30:39,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 19:30:39,627 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:30:39,628 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:30:39,628 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:30:39,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:30:39,632 INFO L82 PathProgramCache]: Analyzing trace with hash -2147310532, now seen corresponding path program 1 times [2019-12-07 19:30:39,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:30:39,639 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60596844] [2019-12-07 19:30:39,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:30:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:30:39,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:30:39,821 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60596844] [2019-12-07 19:30:39,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:30:39,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 19:30:39,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096162190] [2019-12-07 19:30:39,827 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 19:30:39,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 19:30:39,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 19:30:39,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 19:30:39,841 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2019-12-07 19:30:39,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:30:39,887 INFO L93 Difference]: Finished difference Result 58 states and 92 transitions. [2019-12-07 19:30:39,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 19:30:39,889 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-07 19:30:39,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:30:39,898 INFO L225 Difference]: With dead ends: 58 [2019-12-07 19:30:39,898 INFO L226 Difference]: Without dead ends: 29 [2019-12-07 19:30:39,901 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 19:30:39,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-07 19:30:39,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-12-07 19:30:39,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 19:30:39,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 42 transitions. [2019-12-07 19:30:39,933 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 42 transitions. Word has length 8 [2019-12-07 19:30:39,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:30:39,934 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 42 transitions. [2019-12-07 19:30:39,934 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 19:30:39,934 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 42 transitions. [2019-12-07 19:30:39,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 19:30:39,935 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:30:39,935 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:30:39,935 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:30:39,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:30:39,935 INFO L82 PathProgramCache]: Analyzing trace with hash 2028884899, now seen corresponding path program 1 times [2019-12-07 19:30:39,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:30:39,936 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902395957] [2019-12-07 19:30:39,936 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:30:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:30:40,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:30:40,010 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902395957] [2019-12-07 19:30:40,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:30:40,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 19:30:40,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186697304] [2019-12-07 19:30:40,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 19:30:40,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 19:30:40,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 19:30:40,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 19:30:40,012 INFO L87 Difference]: Start difference. First operand 29 states and 42 transitions. Second operand 3 states. [2019-12-07 19:30:40,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:30:40,015 INFO L93 Difference]: Finished difference Result 29 states and 42 transitions. [2019-12-07 19:30:40,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 19:30:40,015 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-07 19:30:40,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:30:40,015 INFO L225 Difference]: With dead ends: 29 [2019-12-07 19:30:40,015 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 19:30:40,016 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 19:30:40,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 19:30:40,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 19:30:40,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 19:30:40,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 19:30:40,016 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-12-07 19:30:40,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:30:40,016 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 19:30:40,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 19:30:40,017 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 19:30:40,017 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 19:30:40,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 19:30:40,055 INFO L246 CegarLoopResult]: For program point L3041-2(lines 3039 3050) no Hoare annotation was computed. [2019-12-07 19:30:40,055 INFO L249 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-12-07 19:30:40,056 INFO L246 CegarLoopResult]: For program point L3026(line 3026) no Hoare annotation was computed. [2019-12-07 19:30:40,056 INFO L246 CegarLoopResult]: For program point L3060(line 3060) no Hoare annotation was computed. [2019-12-07 19:30:40,056 INFO L246 CegarLoopResult]: For program point L3027(lines 3027 3058) no Hoare annotation was computed. [2019-12-07 19:30:40,056 INFO L242 CegarLoopResult]: At program point L2947(lines 2947 2952) the Hoare annotation is: (and (= 1 ~ldv_module_refcounter~0) (= ~ldv_state_variable_0~0 1)) [2019-12-07 19:30:40,056 INFO L246 CegarLoopResult]: For program point L3030(line 3030) no Hoare annotation was computed. [2019-12-07 19:30:40,056 INFO L242 CegarLoopResult]: At program point L3063(lines 3019 3068) the Hoare annotation is: (= 1 ~ldv_module_refcounter~0) [2019-12-07 19:30:40,056 INFO L242 CegarLoopResult]: At program point L3047(lines 3173 3176) the Hoare annotation is: (= 1 ~ldv_module_refcounter~0) [2019-12-07 19:30:40,057 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 19:30:40,057 INFO L242 CegarLoopResult]: At program point L3031(lines 3031 3036) the Hoare annotation is: (= 1 ~ldv_module_refcounter~0) [2019-12-07 19:30:40,057 INFO L242 CegarLoopResult]: At program point L3231(lines 2940 2945) the Hoare annotation is: (and (= 1 ~ldv_module_refcounter~0) (= ~ldv_state_variable_0~0 1)) [2019-12-07 19:30:40,057 INFO L242 CegarLoopResult]: At program point L3000(lines 2928 3002) the Hoare annotation is: (and (= 1 ~ldv_module_refcounter~0) (= ~ldv_state_variable_0~0 1)) [2019-12-07 19:30:40,057 INFO L242 CegarLoopResult]: At program point L2967(lines 2967 2974) the Hoare annotation is: (and (= 1 ~ldv_module_refcounter~0) (= ~ldv_state_variable_0~0 1)) [2019-12-07 19:30:40,057 INFO L249 CegarLoopResult]: At program point L2835-1(lines 2834 2837) the Hoare annotation is: true [2019-12-07 19:30:40,057 INFO L249 CegarLoopResult]: At program point L2835(lines 2834 2837) the Hoare annotation is: true [2019-12-07 19:30:40,058 INFO L246 CegarLoopResult]: For program point L3053(line 3053) no Hoare annotation was computed. [2019-12-07 19:30:40,058 INFO L246 CegarLoopResult]: For program point L3038(line 3038) no Hoare annotation was computed. [2019-12-07 19:30:40,058 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3075) no Hoare annotation was computed. [2019-12-07 19:30:40,058 INFO L242 CegarLoopResult]: At program point L2956(lines 2956 2976) the Hoare annotation is: (and (= 1 ~ldv_module_refcounter~0) (= ~ldv_state_variable_0~0 1)) [2019-12-07 19:30:40,058 INFO L242 CegarLoopResult]: At program point L2956-2(lines 2956 2976) the Hoare annotation is: (and (= 1 ~ldv_module_refcounter~0) (= ~ldv_state_variable_0~0 1)) [2019-12-07 19:30:40,058 INFO L242 CegarLoopResult]: At program point L3039(lines 3039 3051) the Hoare annotation is: (= 1 ~ldv_module_refcounter~0) [2019-12-07 19:30:40,058 INFO L249 CegarLoopResult]: At program point L3173(lines 3170 3179) the Hoare annotation is: true [2019-12-07 19:30:40,059 INFO L246 CegarLoopResult]: For program point L3074(line 3074) no Hoare annotation was computed. [2019-12-07 19:30:40,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 07:30:40 BoogieIcfgContainer [2019-12-07 19:30:40,072 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 19:30:40,072 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 19:30:40,073 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 19:30:40,073 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 19:30:40,073 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:30:39" (3/4) ... [2019-12-07 19:30:40,076 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 19:30:40,088 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 106 nodes and edges [2019-12-07 19:30:40,089 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2019-12-07 19:30:40,090 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-12-07 19:30:40,091 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 19:30:40,167 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d06d5f4c-d386-4cf4-8864-6a1af9f16276/bin/utaipan/witness.graphml [2019-12-07 19:30:40,167 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 19:30:40,168 INFO L168 Benchmark]: Toolchain (without parser) took 2762.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 933.8 MB in the beginning and 929.3 MB in the end (delta: 4.5 MB). Peak memory consumption was 107.3 MB. Max. memory is 11.5 GB. [2019-12-07 19:30:40,169 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:30:40,169 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 933.8 MB in the beginning and 1.0 GB in the end (delta: -111.5 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2019-12-07 19:30:40,169 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 19:30:40,169 INFO L168 Benchmark]: Boogie Preprocessor took 41.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 19:30:40,170 INFO L168 Benchmark]: RCFGBuilder took 1379.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 993.1 MB in the end (delta: 41.6 MB). Peak memory consumption was 215.0 MB. Max. memory is 11.5 GB. [2019-12-07 19:30:40,170 INFO L168 Benchmark]: TraceAbstraction took 499.37 ms. Allocated memory is still 1.1 GB. Free memory was 993.1 MB in the beginning and 946.5 MB in the end (delta: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. [2019-12-07 19:30:40,170 INFO L168 Benchmark]: Witness Printer took 94.52 ms. Allocated memory is still 1.1 GB. Free memory was 946.5 MB in the beginning and 929.3 MB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2019-12-07 19:30:40,172 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 680.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 933.8 MB in the beginning and 1.0 GB in the end (delta: -111.5 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 62.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1379.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 993.1 MB in the end (delta: 41.6 MB). Peak memory consumption was 215.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 499.37 ms. Allocated memory is still 1.1 GB. Free memory was 993.1 MB in the beginning and 946.5 MB in the end (delta: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. * Witness Printer took 94.52 ms. Allocated memory is still 1.1 GB. Free memory was 946.5 MB in the beginning and 929.3 MB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3075]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 2947]: Loop Invariant Derived loop invariant: 1 == ldv_module_refcounter && ldv_state_variable_0 == 1 - InvariantResult [Line: 3019]: Loop Invariant Derived loop invariant: 1 == ldv_module_refcounter - InvariantResult [Line: 3031]: Loop Invariant Derived loop invariant: 1 == ldv_module_refcounter - InvariantResult [Line: 2967]: Loop Invariant Derived loop invariant: 1 == ldv_module_refcounter && ldv_state_variable_0 == 1 - InvariantResult [Line: 2928]: Loop Invariant Derived loop invariant: 1 == ldv_module_refcounter && ldv_state_variable_0 == 1 - InvariantResult [Line: 2940]: Loop Invariant Derived loop invariant: 1 == ldv_module_refcounter && ldv_state_variable_0 == 1 - InvariantResult [Line: 2956]: Loop Invariant Derived loop invariant: 1 == ldv_module_refcounter && ldv_state_variable_0 == 1 - InvariantResult [Line: 3039]: Loop Invariant Derived loop invariant: 1 == ldv_module_refcounter - InvariantResult [Line: 2956]: Loop Invariant Derived loop invariant: 1 == ldv_module_refcounter && ldv_state_variable_0 == 1 - InvariantResult [Line: 2834]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3173]: Loop Invariant Derived loop invariant: 1 == ldv_module_refcounter - InvariantResult [Line: 2834]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3170]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 60 SDtfs, 39 SDslu, 18 SDs, 0 SdLazy, 11 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 14 PreInvPairs, 32 NumberOfFragments, 58 HoareAnnotationTreeSize, 14 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 460 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...