./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-ext-properties/simple-ext_false-unreach-call_false-valid-memcleanup_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6c2d19b6-b0fc-4ad8-95a6-cb1c44fbc6e8/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6c2d19b6-b0fc-4ad8-95a6-cb1c44fbc6e8/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6c2d19b6-b0fc-4ad8-95a6-cb1c44fbc6e8/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6c2d19b6-b0fc-4ad8-95a6-cb1c44fbc6e8/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/simple-ext_false-unreach-call_false-valid-memcleanup_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6c2d19b6-b0fc-4ad8-95a6-cb1c44fbc6e8/bin-2019/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6c2d19b6-b0fc-4ad8-95a6-cb1c44fbc6e8/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9becd42a466bdbd2531661a22b57e70854c9d9ea ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 22:30:08,226 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 22:30:08,227 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 22:30:08,233 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 22:30:08,233 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 22:30:08,234 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 22:30:08,234 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 22:30:08,235 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 22:30:08,236 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 22:30:08,236 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 22:30:08,237 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 22:30:08,237 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 22:30:08,237 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 22:30:08,238 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 22:30:08,238 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 22:30:08,239 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 22:30:08,239 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 22:30:08,240 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 22:30:08,241 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 22:30:08,241 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 22:30:08,242 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 22:30:08,243 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 22:30:08,244 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 22:30:08,244 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 22:30:08,244 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 22:30:08,245 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 22:30:08,245 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 22:30:08,245 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 22:30:08,246 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 22:30:08,246 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 22:30:08,247 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 22:30:08,247 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 22:30:08,247 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 22:30:08,247 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 22:30:08,248 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 22:30:08,248 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 22:30:08,248 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6c2d19b6-b0fc-4ad8-95a6-cb1c44fbc6e8/bin-2019/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2018-12-01 22:30:08,255 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 22:30:08,256 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 22:30:08,256 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 22:30:08,256 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 22:30:08,256 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 22:30:08,257 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 22:30:08,257 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 22:30:08,257 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 22:30:08,257 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 22:30:08,257 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 22:30:08,257 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-01 22:30:08,257 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-01 22:30:08,257 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 22:30:08,257 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 22:30:08,257 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 22:30:08,257 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-01 22:30:08,258 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-01 22:30:08,258 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 22:30:08,258 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 22:30:08,258 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-01 22:30:08,258 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 22:30:08,258 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 22:30:08,258 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-01 22:30:08,258 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 22:30:08,258 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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_6c2d19b6-b0fc-4ad8-95a6-cb1c44fbc6e8/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 valid-memcleanup) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9becd42a466bdbd2531661a22b57e70854c9d9ea [2018-12-01 22:30:08,276 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 22:30:08,284 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 22:30:08,286 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 22:30:08,288 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 22:30:08,288 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 22:30:08,288 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6c2d19b6-b0fc-4ad8-95a6-cb1c44fbc6e8/bin-2019/ukojak/../../sv-benchmarks/c/list-ext-properties/simple-ext_false-unreach-call_false-valid-memcleanup_true-termination.i [2018-12-01 22:30:08,324 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6c2d19b6-b0fc-4ad8-95a6-cb1c44fbc6e8/bin-2019/ukojak/data/7c7be9015/8c26528e0ee6470e9d8a471789600f8b/FLAG3918ff4c4 [2018-12-01 22:30:08,770 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 22:30:08,770 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6c2d19b6-b0fc-4ad8-95a6-cb1c44fbc6e8/sv-benchmarks/c/list-ext-properties/simple-ext_false-unreach-call_false-valid-memcleanup_true-termination.i [2018-12-01 22:30:08,776 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6c2d19b6-b0fc-4ad8-95a6-cb1c44fbc6e8/bin-2019/ukojak/data/7c7be9015/8c26528e0ee6470e9d8a471789600f8b/FLAG3918ff4c4 [2018-12-01 22:30:08,784 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6c2d19b6-b0fc-4ad8-95a6-cb1c44fbc6e8/bin-2019/ukojak/data/7c7be9015/8c26528e0ee6470e9d8a471789600f8b [2018-12-01 22:30:08,786 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 22:30:08,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 22:30:08,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 22:30:08,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 22:30:08,789 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 22:30:08,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:30:08" (1/1) ... [2018-12-01 22:30:08,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ca176b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:08, skipping insertion in model container [2018-12-01 22:30:08,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:30:08" (1/1) ... [2018-12-01 22:30:08,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 22:30:08,817 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 22:30:08,973 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:30:08,978 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 22:30:09,034 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:30:09,062 INFO L195 MainTranslator]: Completed translation [2018-12-01 22:30:09,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09 WrapperNode [2018-12-01 22:30:09,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 22:30:09,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 22:30:09,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 22:30:09,063 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 22:30:09,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09" (1/1) ... [2018-12-01 22:30:09,078 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09" (1/1) ... [2018-12-01 22:30:09,090 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 22:30:09,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 22:30:09,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 22:30:09,091 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 22:30:09,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09" (1/1) ... [2018-12-01 22:30:09,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09" (1/1) ... [2018-12-01 22:30:09,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09" (1/1) ... [2018-12-01 22:30:09,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09" (1/1) ... [2018-12-01 22:30:09,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09" (1/1) ... [2018-12-01 22:30:09,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09" (1/1) ... [2018-12-01 22:30:09,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09" (1/1) ... [2018-12-01 22:30:09,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 22:30:09,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 22:30:09,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 22:30:09,108 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 22:30:09,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:30:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c2d19b6-b0fc-4ad8-95a6-cb1c44fbc6e8/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 [2018-12-01 22:30:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 22:30:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-01 22:30:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-01 22:30:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-01 22:30:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-01 22:30:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 22:30:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 22:30:09,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 22:30:09,359 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 22:30:09,359 INFO L280 CfgBuilder]: Removed 11 assue(true) statements. [2018-12-01 22:30:09,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:30:09 BoogieIcfgContainer [2018-12-01 22:30:09,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 22:30:09,359 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-01 22:30:09,359 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-01 22:30:09,366 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-01 22:30:09,367 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:30:09" (1/1) ... [2018-12-01 22:30:09,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:30:09,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:09,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 40 states and 45 transitions. [2018-12-01 22:30:09,397 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2018-12-01 22:30:09,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-01 22:30:09,398 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:09,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:09,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:09,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 40 states and 44 transitions. [2018-12-01 22:30:09,471 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2018-12-01 22:30:09,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-01 22:30:09,471 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:09,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:09,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:09,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 43 states and 49 transitions. [2018-12-01 22:30:09,527 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2018-12-01 22:30:09,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-01 22:30:09,527 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:09,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:09,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:09,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 46 states and 54 transitions. [2018-12-01 22:30:09,691 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2018-12-01 22:30:09,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-01 22:30:09,691 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:09,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:09,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:09,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 47 states and 55 transitions. [2018-12-01 22:30:09,713 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2018-12-01 22:30:09,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-01 22:30:09,713 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:09,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:09,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:09,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:09,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 48 states and 56 transitions. [2018-12-01 22:30:09,733 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2018-12-01 22:30:09,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-01 22:30:09,733 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:09,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:09,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:09,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 47 states and 55 transitions. [2018-12-01 22:30:09,753 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2018-12-01 22:30:09,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-01 22:30:09,753 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:09,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:09,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:09,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 48 states and 56 transitions. [2018-12-01 22:30:09,777 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2018-12-01 22:30:09,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-01 22:30:09,779 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:09,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:09,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 47 states and 55 transitions. [2018-12-01 22:30:09,812 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2018-12-01 22:30:09,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-01 22:30:09,813 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:09,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:09,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:09,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 49 states and 58 transitions. [2018-12-01 22:30:09,850 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2018-12-01 22:30:09,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-01 22:30:09,850 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:09,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:09,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:10,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:10,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 55 states and 70 transitions. [2018-12-01 22:30:10,004 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2018-12-01 22:30:10,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-01 22:30:10,005 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:10,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:10,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:10,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 61 states and 82 transitions. [2018-12-01 22:30:10,120 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 82 transitions. [2018-12-01 22:30:10,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-01 22:30:10,121 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:10,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:10,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:10,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 60 states and 81 transitions. [2018-12-01 22:30:10,144 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 81 transitions. [2018-12-01 22:30:10,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-01 22:30:10,144 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:10,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:10,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:10,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:10,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 59 states and 80 transitions. [2018-12-01 22:30:10,354 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 80 transitions. [2018-12-01 22:30:10,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-01 22:30:10,355 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:10,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:10,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:10,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 58 states and 79 transitions. [2018-12-01 22:30:10,377 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2018-12-01 22:30:10,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-01 22:30:10,378 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:10,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:10,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:10,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 59 states and 82 transitions. [2018-12-01 22:30:10,417 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 82 transitions. [2018-12-01 22:30:10,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-01 22:30:10,417 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:10,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:10,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:10,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 64 states and 92 transitions. [2018-12-01 22:30:10,673 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 92 transitions. [2018-12-01 22:30:10,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-01 22:30:10,674 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:10,772 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:11,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:11,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 70 states and 103 transitions. [2018-12-01 22:30:11,266 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions. [2018-12-01 22:30:11,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-01 22:30:11,267 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:11,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:11,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:11,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 71 states and 104 transitions. [2018-12-01 22:30:11,659 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 104 transitions. [2018-12-01 22:30:11,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-01 22:30:11,659 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:11,767 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:12,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:12,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 53 states and 77 transitions. [2018-12-01 22:30:12,160 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 77 transitions. [2018-12-01 22:30:12,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-01 22:30:12,161 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:12,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:13,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:13,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 59 states and 91 transitions. [2018-12-01 22:30:13,331 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 91 transitions. [2018-12-01 22:30:13,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-01 22:30:13,331 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:13,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:13,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:13,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 63 states and 96 transitions. [2018-12-01 22:30:13,483 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 96 transitions. [2018-12-01 22:30:13,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-01 22:30:13,484 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:13,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:13,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:13,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 67 states and 101 transitions. [2018-12-01 22:30:13,667 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 101 transitions. [2018-12-01 22:30:13,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-01 22:30:13,667 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:13,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-01 22:30:14,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:14,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 75 states and 112 transitions. [2018-12-01 22:30:14,859 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 112 transitions. [2018-12-01 22:30:14,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-01 22:30:14,860 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:14,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:14,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:14,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:14,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 76 states and 118 transitions. [2018-12-01 22:30:14,913 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 118 transitions. [2018-12-01 22:30:14,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-01 22:30:14,913 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:14,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-01 22:30:15,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:15,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 77 states and 121 transitions. [2018-12-01 22:30:15,148 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 121 transitions. [2018-12-01 22:30:15,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-01 22:30:15,148 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:15,402 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:16,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:16,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 81 states and 126 transitions. [2018-12-01 22:30:16,203 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 126 transitions. [2018-12-01 22:30:16,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-01 22:30:16,203 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:16,265 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:17,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:17,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 87 states and 136 transitions. [2018-12-01 22:30:17,343 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 136 transitions. [2018-12-01 22:30:17,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-01 22:30:17,344 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:17,515 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:18,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:18,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 91 states and 142 transitions. [2018-12-01 22:30:18,834 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 142 transitions. [2018-12-01 22:30:18,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-01 22:30:18,834 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:18,859 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-01 22:30:19,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:19,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 75 states and 118 transitions. [2018-12-01 22:30:19,503 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 118 transitions. [2018-12-01 22:30:19,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-01 22:30:19,503 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:19,524 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-01 22:30:20,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:20,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 63 states and 99 transitions. [2018-12-01 22:30:20,149 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 99 transitions. [2018-12-01 22:30:20,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-01 22:30:20,149 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:30:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:30:20,530 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:30:22,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:30:22,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2018-12-01 22:30:22,855 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2018-12-01 22:30:22,856 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-01 22:30:22,856 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 32 iterations. [2018-12-01 22:30:22,861 INFO L779 CodeCheckObserver]: All specifications hold 19 specifications checked. All of them hold [2018-12-01 22:30:23,122 INFO L583 CodeCheckObserver]: Invariant with dag size 19 [2018-12-01 22:30:23,125 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 22:30:23,126 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 22:30:23,129 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 22:30:23,129 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 22:30:23,129 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-01 22:30:23,129 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-01 22:30:23,129 INFO L583 CodeCheckObserver]: Invariant with dag size 30 [2018-12-01 22:30:23,130 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 22:30:23,130 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 22:30:23,130 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 22:30:23,130 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 22:30:23,131 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 22:30:23,131 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 22:30:23,131 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 22:30:23,131 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 22:30:23,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 10:30:23 ImpRootNode [2018-12-01 22:30:23,131 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-01 22:30:23,132 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 22:30:23,132 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 22:30:23,132 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 22:30:23,132 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:30:09" (3/4) ... [2018-12-01 22:30:23,134 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-01 22:30:23,140 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-12-01 22:30:23,140 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-01 22:30:23,140 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-01 22:30:23,169 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6c2d19b6-b0fc-4ad8-95a6-cb1c44fbc6e8/bin-2019/ukojak/witness.graphml [2018-12-01 22:30:23,169 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 22:30:23,170 INFO L168 Benchmark]: Toolchain (without parser) took 14383.61 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 287.3 MB). Free memory was 956.0 MB in the beginning and 727.8 MB in the end (delta: 228.2 MB). Peak memory consumption was 515.5 MB. Max. memory is 11.5 GB. [2018-12-01 22:30:23,170 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:30:23,171 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 62.4 MB). Free memory was 956.0 MB in the beginning and 1.0 GB in the end (delta: -89.4 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. [2018-12-01 22:30:23,171 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.36 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:30:23,171 INFO L168 Benchmark]: Boogie Preprocessor took 16.88 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:30:23,171 INFO L168 Benchmark]: RCFGBuilder took 251.39 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: 37.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 11.5 GB. [2018-12-01 22:30:23,171 INFO L168 Benchmark]: CodeCheck took 13772.03 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 224.9 MB). Free memory was 1.0 GB in the beginning and 739.1 MB in the end (delta: 268.9 MB). Peak memory consumption was 493.8 MB. Max. memory is 11.5 GB. [2018-12-01 22:30:23,172 INFO L168 Benchmark]: Witness Printer took 37.53 ms. Allocated memory is still 1.3 GB. Free memory was 739.1 MB in the beginning and 727.8 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. [2018-12-01 22:30:23,173 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 1 procedures, 53 locations, 19 error locations. SAFE Result, 13.4s OverallTime, 32 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 84279296 SDtfs, -765536604 SDslu, 1204675504 SDs, 0 SdLazy, 1300237510 SolverSat, -107586906 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3188 GetRequests, 2876 SyntacticMatches, 98 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21291 ImplicationChecksByTransitivity, 12.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 347 NumberOfCodeBlocks, 347 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 316 ConstructedInterpolants, 0 QuantifiedInterpolants, 31783 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 22 PerfectInterpolantSequences, 28/68 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: 637]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 655]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 627]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 649]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 637]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 656]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 656]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 649]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 638]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 641]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 638]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 655]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 642]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 642]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 641]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 646]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 634]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 646]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 634]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 19 specifications checked. All of them hold - InvariantResult [Line: 645]: Loop Invariant [2018-12-01 22:30:23,174 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 22:30:23,174 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 22:30:23,174 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 22:30:23,175 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((p == 0 && !(0 == p)) && 8 <= unknown-#length-unknown[p]) && \valid[p] == 1) && 0 == unknown-#memory_int-unknown[p][p] - InvariantResult [Line: 621]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 621]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 633]: Loop Invariant [2018-12-01 22:30:23,175 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 22:30:23,175 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 22:30:23,175 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 22:30:23,175 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 22:30:23,176 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 22:30:23,176 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 22:30:23,176 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 22:30:23,176 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: ((((((p == 0 && unknown-#length-unknown[p] == 8) && 0 == unknown-#memory_int-unknown[p := unknown-#memory_int-unknown[p][p := i]][a][a]) && !(0 == a)) && 0 == a) && \valid[p] == 1) && 1 == \valid[a]) && 8 <= unknown-#length-unknown[a] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 275.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 62.4 MB). Free memory was 956.0 MB in the beginning and 1.0 GB in the end (delta: -89.4 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.36 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.88 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 251.39 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: 37.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 11.5 GB. * CodeCheck took 13772.03 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 224.9 MB). Free memory was 1.0 GB in the beginning and 739.1 MB in the end (delta: 268.9 MB). Peak memory consumption was 493.8 MB. Max. memory is 11.5 GB. * Witness Printer took 37.53 ms. Allocated memory is still 1.3 GB. Free memory was 739.1 MB in the beginning and 727.8 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length RESULT: Ultimate proved your program to be correct! Received shutdown request...