./Ultimate.py --spec ../../sv-benchmarks/c/Systems_DeviceDriversLinux64_ReachSafety.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a4f5db3a-c13a-4e7c-8fb4-941f88ff75aa/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a4f5db3a-c13a-4e7c-8fb4-941f88ff75aa/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a4f5db3a-c13a-4e7c-8fb4-941f88ff75aa/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a4f5db3a-c13a-4e7c-8fb4-941f88ff75aa/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a4f5db3a-c13a-4e7c-8fb4-941f88ff75aa/bin-2019/ukojak/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a4f5db3a-c13a-4e7c-8fb4-941f88ff75aa/bin-2019/ukojak --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a89a64f5289ba9e048bf8d3e685f4757a2b71072 .............................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 21:21:15,358 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:21:15,360 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:21:15,372 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:21:15,372 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:21:15,373 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:21:15,374 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:21:15,380 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:21:15,382 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:21:15,383 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:21:15,383 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:21:15,384 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:21:15,384 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:21:15,385 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:21:15,386 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:21:15,387 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:21:15,395 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:21:15,396 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:21:15,398 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:21:15,409 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:21:15,410 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:21:15,411 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:21:15,413 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:21:15,413 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:21:15,413 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:21:15,414 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:21:15,415 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:21:15,420 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:21:15,420 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:21:15,421 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:21:15,421 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:21:15,422 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 21:21:15,422 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 21:21:15,422 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 21:21:15,428 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 21:21:15,428 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 21:21:15,429 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a4f5db3a-c13a-4e7c-8fb4-941f88ff75aa/bin-2019/ukojak/config/svcomp-Reach-64bit-Kojak_Default.epf [2018-10-26 21:21:15,440 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:21:15,441 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:21:15,441 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:21:15,442 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 21:21:15,442 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 21:21:15,442 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 21:21:15,442 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:21:15,443 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 21:21:15,443 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:21:15,444 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:21:15,444 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:21:15,444 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:21:15,444 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:21:15,444 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:21:15,445 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-26 21:21:15,445 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-26 21:21:15,445 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:21:15,445 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:21:15,445 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-26 21:21:15,445 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:21:15,446 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:21:15,446 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:21:15,446 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-26 21:21:15,446 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:21:15,446 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 21:21:15,446 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 21:21:15,447 INFO L133 SettingsManager]: * To the following directory=dump/ 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/working_dir_a4f5db3a-c13a-4e7c-8fb4-941f88ff75aa/bin-2019/ukojak 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 -> Kojak 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 -> a89a64f5289ba9e048bf8d3e685f4757a2b71072 [2018-10-26 21:21:15,478 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:21:15,491 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:21:15,494 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:21:15,496 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:21:15,497 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:21:15,497 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a4f5db3a-c13a-4e7c-8fb4-941f88ff75aa/bin-2019/ukojak/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i [2018-10-26 21:21:15,546 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a4f5db3a-c13a-4e7c-8fb4-941f88ff75aa/bin-2019/ukojak/data/b7dd3f7cf/f7fccfaa2ee64cfeb72c56625ca84fe6/FLAG46df1d5d1 [2018-10-26 21:21:16,151 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:21:16,151 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a4f5db3a-c13a-4e7c-8fb4-941f88ff75aa/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i [2018-10-26 21:21:16,175 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a4f5db3a-c13a-4e7c-8fb4-941f88ff75aa/bin-2019/ukojak/data/b7dd3f7cf/f7fccfaa2ee64cfeb72c56625ca84fe6/FLAG46df1d5d1 [2018-10-26 21:21:16,188 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a4f5db3a-c13a-4e7c-8fb4-941f88ff75aa/bin-2019/ukojak/data/b7dd3f7cf/f7fccfaa2ee64cfeb72c56625ca84fe6 [2018-10-26 21:21:16,191 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:21:16,192 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 21:21:16,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:21:16,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:21:16,197 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:21:16,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:21:16" (1/1) ... [2018-10-26 21:21:16,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f09cc70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:16, skipping insertion in model container [2018-10-26 21:21:16,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:21:16" (1/1) ... [2018-10-26 21:21:16,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:21:16,285 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:21:16,987 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:21:17,022 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:21:17,482 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:21:17,520 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:21:17,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:17 WrapperNode [2018-10-26 21:21:17,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:21:17,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 21:21:17,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 21:21:17,523 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 21:21:17,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:17" (1/1) ... [2018-10-26 21:21:17,553 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:17" (1/1) ... [2018-10-26 21:21:17,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 21:21:17,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:21:17,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:21:17,582 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:21:17,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:17" (1/1) ... [2018-10-26 21:21:17,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:17" (1/1) ... [2018-10-26 21:21:17,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:17" (1/1) ... [2018-10-26 21:21:17,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:17" (1/1) ... [2018-10-26 21:21:17,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:17" (1/1) ... [2018-10-26 21:21:17,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:17" (1/1) ... [2018-10-26 21:21:17,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:17" (1/1) ... [2018-10-26 21:21:17,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:21:17,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:21:17,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:21:17,636 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:21:17,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4f5db3a-c13a-4e7c-8fb4-941f88ff75aa/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2018-10-26 21:21:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-10-26 21:21:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-26 21:21:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-10-26 21:21:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:21:17,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:21:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2018-10-26 21:21:17,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2018-10-26 21:21:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2018-10-26 21:21:17,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2018-10-26 21:21:17,834 WARN L667 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-10-26 21:21:17,834 WARN L632 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-10-26 21:21:18,986 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:21:18,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:21:18 BoogieIcfgContainer [2018-10-26 21:21:18,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:21:18,987 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-26 21:21:18,995 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-26 21:21:19,003 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-26 21:21:19,003 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:21:18" (1/1) ... [2018-10-26 21:21:19,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:21:19,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 21:21:19,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 28 states and 38 transitions. [2018-10-26 21:21:19,059 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2018-10-26 21:21:19,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-26 21:21:19,061 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 21:21:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:21:19,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:21:19,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 21:21:19,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 29 states and 37 transitions. [2018-10-26 21:21:19,444 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2018-10-26 21:21:19,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-26 21:21:19,445 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 21:21:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:21:19,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:21:19,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 21:21:19,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 31 states and 41 transitions. [2018-10-26 21:21:19,539 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2018-10-26 21:21:19,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-26 21:21:19,540 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 21:21:19,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:21:19,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 21:21:19,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 21:21:19,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 32 states and 42 transitions. [2018-10-26 21:21:19,592 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2018-10-26 21:21:19,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-26 21:21:19,593 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 21:21:19,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:21:19,653 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 21:21:19,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 21:21:19,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 35 states and 49 transitions. [2018-10-26 21:21:19,669 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2018-10-26 21:21:19,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-26 21:21:19,670 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 21:21:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:21:20,180 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 9 [2018-10-26 21:21:20,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:21:20,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 21:21:20,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 42 states and 61 transitions. [2018-10-26 21:21:20,709 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 61 transitions. [2018-10-26 21:21:20,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-26 21:21:20,718 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 21:21:20,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:21:20,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 21:21:20,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 21:21:20,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 43 states and 62 transitions. [2018-10-26 21:21:20,854 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 62 transitions. [2018-10-26 21:21:20,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-26 21:21:20,856 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 21:21:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:21:20,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 21:21:20,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 21:21:20,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 44 states and 63 transitions. [2018-10-26 21:21:20,920 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 63 transitions. [2018-10-26 21:21:20,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 21:21:20,921 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 21:21:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:21:21,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 21:21:21,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 21:21:21,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 45 states and 65 transitions. [2018-10-26 21:21:21,327 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2018-10-26 21:21:21,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-26 21:21:21,328 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 21:21:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:21:21,734 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:21:22,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 21:21:22,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 48 states and 72 transitions. [2018-10-26 21:21:22,561 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 72 transitions. [2018-10-26 21:21:22,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-26 21:21:22,562 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 21:21:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:21:22,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:21:23,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 21:21:23,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 25 states and 32 transitions. [2018-10-26 21:21:23,950 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2018-10-26 21:21:23,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 21:21:23,951 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2018-10-26 21:21:23,961 INFO L778 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-10-26 21:21:24,127 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-26 21:21:24,130 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-26 21:21:24,130 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-26 21:21:24,130 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-26 21:21:24,130 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-26 21:21:24,130 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-26 21:21:24,130 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-26 21:21:24,130 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-26 21:21:24,130 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-26 21:21:24,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.10 09:21:24 ImpRootNode [2018-10-26 21:21:24,131 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-26 21:21:24,131 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 21:21:24,131 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 21:21:24,131 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 21:21:24,132 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:21:18" (3/4) ... [2018-10-26 21:21:24,136 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 21:21:24,142 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_module_put [2018-10-26 21:21:24,143 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_blast_assert [2018-10-26 21:21:24,149 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2018-10-26 21:21:24,149 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-10-26 21:21:24,150 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-10-26 21:21:24,150 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 21:21:24,228 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a4f5db3a-c13a-4e7c-8fb4-941f88ff75aa/bin-2019/ukojak/witness.graphml [2018-10-26 21:21:24,228 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 21:21:24,229 INFO L168 Benchmark]: Toolchain (without parser) took 8037.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.8 MB). Free memory was 951.6 MB in the beginning and 1.1 GB in the end (delta: -140.8 MB). Peak memory consumption was 37.9 MB. Max. memory is 11.5 GB. [2018-10-26 21:21:24,230 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:21:24,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1327.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 948.9 MB in the beginning and 1.0 GB in the end (delta: -100.9 MB). Peak memory consumption was 141.1 MB. Max. memory is 11.5 GB. [2018-10-26 21:21:24,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. [2018-10-26 21:21:24,230 INFO L168 Benchmark]: Boogie Preprocessor took 45.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. [2018-10-26 21:21:24,231 INFO L168 Benchmark]: RCFGBuilder took 1351.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 971.3 MB in the end (delta: 72.3 MB). Peak memory consumption was 72.3 MB. Max. memory is 11.5 GB. [2018-10-26 21:21:24,232 INFO L168 Benchmark]: CodeCheck took 5143.88 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 48.2 MB). Free memory was 971.3 MB in the beginning and 1.1 GB in the end (delta: -126.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:21:24,233 INFO L168 Benchmark]: Witness Printer took 97.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. [2018-10-26 21:21:24,235 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 67 locations, 1 error locations. SAFE Result, 4.9s OverallTime, 11 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9296 SDtfs, 8174 SDslu, 12524 SDs, 0 SdLazy, 2798 SolverSat, 1996 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1288 GetRequests, 1208 SyntacticMatches, 20 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 949 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 141 ConstructedInterpolants, 0 QuantifiedInterpolants, 9535 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 14/14 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 5012]: 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: 5086]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4955]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4992]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4883]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4971]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5110]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4901]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4955]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1327.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 948.9 MB in the beginning and 1.0 GB in the end (delta: -100.9 MB). Peak memory consumption was 141.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1351.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 971.3 MB in the end (delta: 72.3 MB). Peak memory consumption was 72.3 MB. Max. memory is 11.5 GB. * CodeCheck took 5143.88 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 48.2 MB). Free memory was 971.3 MB in the beginning and 1.1 GB in the end (delta: -126.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 97.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...