./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1_false-unreach-call_false-valid-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f293837b-ae00-43c3-b90e-083773462fae/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f293837b-ae00-43c3-b90e-083773462fae/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f293837b-ae00-43c3-b90e-083773462fae/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f293837b-ae00-43c3-b90e-083773462fae/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1_false-unreach-call_false-valid-deref.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f293837b-ae00-43c3-b90e-083773462fae/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f293837b-ae00-43c3-b90e-083773462fae/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1f270b702de634d3ad2ee5a400388c6410a4cf10 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 15:28:09,477 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 15:28:09,478 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 15:28:09,484 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 15:28:09,484 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 15:28:09,485 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 15:28:09,486 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 15:28:09,487 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 15:28:09,488 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 15:28:09,489 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 15:28:09,489 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 15:28:09,489 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 15:28:09,490 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 15:28:09,491 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 15:28:09,491 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 15:28:09,492 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 15:28:09,492 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 15:28:09,494 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 15:28:09,495 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 15:28:09,496 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 15:28:09,497 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 15:28:09,497 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 15:28:09,499 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 15:28:09,499 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 15:28:09,499 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 15:28:09,500 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 15:28:09,501 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 15:28:09,501 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 15:28:09,502 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 15:28:09,502 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 15:28:09,503 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 15:28:09,503 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 15:28:09,503 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 15:28:09,503 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 15:28:09,504 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 15:28:09,504 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 15:28:09,504 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f293837b-ae00-43c3-b90e-083773462fae/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-02 15:28:09,515 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 15:28:09,515 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 15:28:09,516 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 15:28:09,516 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 15:28:09,516 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 15:28:09,516 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 15:28:09,516 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 15:28:09,517 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 15:28:09,517 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 15:28:09,517 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 15:28:09,517 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-02 15:28:09,517 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-02 15:28:09,517 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-02 15:28:09,517 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 15:28:09,517 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 15:28:09,517 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 15:28:09,517 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-02 15:28:09,518 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-02 15:28:09,518 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 15:28:09,518 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 15:28:09,518 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-02 15:28:09,518 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 15:28:09,518 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 15:28:09,518 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-02 15:28:09,518 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 15:28:09,519 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_f293837b-ae00-43c3-b90e-083773462fae/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 1f270b702de634d3ad2ee5a400388c6410a4cf10 [2018-12-02 15:28:09,541 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 15:28:09,550 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 15:28:09,552 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 15:28:09,553 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 15:28:09,553 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 15:28:09,554 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f293837b-ae00-43c3-b90e-083773462fae/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1_false-unreach-call_false-valid-deref.i [2018-12-02 15:28:09,589 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f293837b-ae00-43c3-b90e-083773462fae/bin-2019/ukojak/data/bedd51c40/bc32ce58c88c4c0f89a4893241978287/FLAGb3977bfaf [2018-12-02 15:28:09,998 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 15:28:09,998 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f293837b-ae00-43c3-b90e-083773462fae/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1_false-unreach-call_false-valid-deref.i [2018-12-02 15:28:10,004 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f293837b-ae00-43c3-b90e-083773462fae/bin-2019/ukojak/data/bedd51c40/bc32ce58c88c4c0f89a4893241978287/FLAGb3977bfaf [2018-12-02 15:28:10,013 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f293837b-ae00-43c3-b90e-083773462fae/bin-2019/ukojak/data/bedd51c40/bc32ce58c88c4c0f89a4893241978287 [2018-12-02 15:28:10,016 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 15:28:10,017 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 15:28:10,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 15:28:10,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 15:28:10,021 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 15:28:10,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:28:10" (1/1) ... [2018-12-02 15:28:10,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@115e7fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:10, skipping insertion in model container [2018-12-02 15:28:10,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:28:10" (1/1) ... [2018-12-02 15:28:10,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 15:28:10,058 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 15:28:10,204 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 15:28:10,242 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 15:28:10,266 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 15:28:10,285 INFO L195 MainTranslator]: Completed translation [2018-12-02 15:28:10,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:10 WrapperNode [2018-12-02 15:28:10,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 15:28:10,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 15:28:10,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 15:28:10,286 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 15:28:10,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:10" (1/1) ... [2018-12-02 15:28:10,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:10" (1/1) ... [2018-12-02 15:28:10,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 15:28:10,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 15:28:10,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 15:28:10,312 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 15:28:10,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:10" (1/1) ... [2018-12-02 15:28:10,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:10" (1/1) ... [2018-12-02 15:28:10,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:10" (1/1) ... [2018-12-02 15:28:10,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:10" (1/1) ... [2018-12-02 15:28:10,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:10" (1/1) ... [2018-12-02 15:28:10,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:10" (1/1) ... [2018-12-02 15:28:10,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:10" (1/1) ... [2018-12-02 15:28:10,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 15:28:10,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 15:28:10,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 15:28:10,330 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 15:28:10,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f293837b-ae00-43c3-b90e-083773462fae/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 [2018-12-02 15:28:10,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 15:28:10,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 15:28:10,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 15:28:10,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-02 15:28:10,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-02 15:28:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 15:28:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 15:28:10,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 15:28:10,670 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 15:28:10,671 INFO L280 CfgBuilder]: Removed 13 assue(true) statements. [2018-12-02 15:28:10,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:28:10 BoogieIcfgContainer [2018-12-02 15:28:10,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 15:28:10,671 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-02 15:28:10,671 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-02 15:28:10,678 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-02 15:28:10,678 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:28:10" (1/1) ... [2018-12-02 15:28:10,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:28:10,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:10,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 106 states and 118 transitions. [2018-12-02 15:28:10,707 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 118 transitions. [2018-12-02 15:28:10,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-02 15:28:10,709 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:10,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:10,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:10,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 105 states and 117 transitions. [2018-12-02 15:28:10,808 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 117 transitions. [2018-12-02 15:28:10,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-02 15:28:10,808 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:10,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:10,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:10,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 104 states and 116 transitions. [2018-12-02 15:28:10,874 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 116 transitions. [2018-12-02 15:28:10,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-02 15:28:10,874 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:10,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:10,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:10,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 103 states and 115 transitions. [2018-12-02 15:28:10,899 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 115 transitions. [2018-12-02 15:28:10,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-02 15:28:10,900 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:10,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:10,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:10,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:10,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 102 states and 114 transitions. [2018-12-02 15:28:10,929 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 114 transitions. [2018-12-02 15:28:10,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-02 15:28:10,930 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:10,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:10,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:10,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 101 states and 113 transitions. [2018-12-02 15:28:10,959 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 113 transitions. [2018-12-02 15:28:10,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-02 15:28:10,959 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:10,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:10,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:10,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 100 states and 112 transitions. [2018-12-02 15:28:10,982 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 112 transitions. [2018-12-02 15:28:10,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 15:28:10,982 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:11,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:11,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:11,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 99 states and 110 transitions. [2018-12-02 15:28:11,044 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 110 transitions. [2018-12-02 15:28:11,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 15:28:11,044 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:11,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:11,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:11,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 102 states and 116 transitions. [2018-12-02 15:28:11,187 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 116 transitions. [2018-12-02 15:28:11,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-02 15:28:11,189 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:11,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:11,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:11,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 101 states and 115 transitions. [2018-12-02 15:28:11,221 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2018-12-02 15:28:11,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-02 15:28:11,221 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:11,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:11,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:11,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 100 states and 114 transitions. [2018-12-02 15:28:11,398 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2018-12-02 15:28:11,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 15:28:11,399 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:11,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:11,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:11,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 100 states and 110 transitions. [2018-12-02 15:28:11,409 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 110 transitions. [2018-12-02 15:28:11,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 15:28:11,409 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:11,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:11,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:11,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 102 states and 113 transitions. [2018-12-02 15:28:11,732 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 113 transitions. [2018-12-02 15:28:11,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 15:28:11,732 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:11,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:12,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:12,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 104 states and 116 transitions. [2018-12-02 15:28:12,227 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 116 transitions. [2018-12-02 15:28:12,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 15:28:12,227 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:12,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:12,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:12,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 110 states and 126 transitions. [2018-12-02 15:28:12,362 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 126 transitions. [2018-12-02 15:28:12,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 15:28:12,362 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:12,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:12,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:12,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 116 states and 136 transitions. [2018-12-02 15:28:12,711 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 136 transitions. [2018-12-02 15:28:12,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 15:28:12,711 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:12,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:12,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:12,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 117 states and 138 transitions. [2018-12-02 15:28:12,849 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 138 transitions. [2018-12-02 15:28:12,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 15:28:12,849 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:12,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:12,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:13,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:13,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 118 states and 139 transitions. [2018-12-02 15:28:13,008 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 139 transitions. [2018-12-02 15:28:13,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 15:28:13,008 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:13,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:14,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:14,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 122 states and 146 transitions. [2018-12-02 15:28:14,447 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 146 transitions. [2018-12-02 15:28:14,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 15:28:14,447 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:14,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:14,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:15,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:15,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 124 states and 150 transitions. [2018-12-02 15:28:15,705 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 150 transitions. [2018-12-02 15:28:15,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 15:28:15,706 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:15,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:15,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:15,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:15,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 126 states and 154 transitions. [2018-12-02 15:28:15,762 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 154 transitions. [2018-12-02 15:28:15,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 15:28:15,763 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:15,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:16,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:16,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 128 states and 157 transitions. [2018-12-02 15:28:16,053 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 157 transitions. [2018-12-02 15:28:16,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 15:28:16,054 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:16,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:16,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:16,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 127 states and 156 transitions. [2018-12-02 15:28:16,076 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 156 transitions. [2018-12-02 15:28:16,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 15:28:16,076 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:16,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:16,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:16,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 129 states and 159 transitions. [2018-12-02 15:28:16,195 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 159 transitions. [2018-12-02 15:28:16,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 15:28:16,195 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:16,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:16,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:16,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:16,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 128 states and 158 transitions. [2018-12-02 15:28:16,229 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 158 transitions. [2018-12-02 15:28:16,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 15:28:16,229 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:16,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:16,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:16,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:16,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 129 states and 161 transitions. [2018-12-02 15:28:16,337 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 161 transitions. [2018-12-02 15:28:16,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 15:28:16,337 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:16,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:17,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:17,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 135 states and 173 transitions. [2018-12-02 15:28:17,243 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 173 transitions. [2018-12-02 15:28:17,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 15:28:17,243 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:17,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:17,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:17,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 134 states and 172 transitions. [2018-12-02 15:28:17,268 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 172 transitions. [2018-12-02 15:28:17,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 15:28:17,268 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:17,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:17,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:17,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 135 states and 174 transitions. [2018-12-02 15:28:17,702 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 174 transitions. [2018-12-02 15:28:17,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-02 15:28:17,702 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:17,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:17,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:17,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 136 states and 174 transitions. [2018-12-02 15:28:17,731 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 174 transitions. [2018-12-02 15:28:17,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-02 15:28:17,731 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:17,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:18,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:18,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 141 states and 183 transitions. [2018-12-02 15:28:18,385 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 183 transitions. [2018-12-02 15:28:18,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-02 15:28:18,386 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:18,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:18,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:19,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:19,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 144 states and 187 transitions. [2018-12-02 15:28:19,373 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 187 transitions. [2018-12-02 15:28:19,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-02 15:28:19,374 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:19,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:19,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:19,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 143 states and 186 transitions. [2018-12-02 15:28:19,392 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 186 transitions. [2018-12-02 15:28:19,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-02 15:28:19,392 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:19,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:19,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:19,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 142 states and 185 transitions. [2018-12-02 15:28:19,506 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 185 transitions. [2018-12-02 15:28:19,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 15:28:19,507 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:19,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:20,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:20,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 144 states and 188 transitions. [2018-12-02 15:28:20,216 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 188 transitions. [2018-12-02 15:28:20,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 15:28:20,217 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:20,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:21,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:21,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 146 states and 191 transitions. [2018-12-02 15:28:21,355 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 191 transitions. [2018-12-02 15:28:21,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 15:28:21,355 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:21,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:21,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:21,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:21,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 145 states and 190 transitions. [2018-12-02 15:28:21,385 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 190 transitions. [2018-12-02 15:28:21,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 15:28:21,385 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:21,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:21,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:21,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 144 states and 189 transitions. [2018-12-02 15:28:21,443 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 189 transitions. [2018-12-02 15:28:21,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 15:28:21,443 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:21,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:21,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:21,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 145 states and 191 transitions. [2018-12-02 15:28:21,687 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 191 transitions. [2018-12-02 15:28:21,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 15:28:21,687 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:21,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:21,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:21,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:21,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 146 states and 192 transitions. [2018-12-02 15:28:21,955 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 192 transitions. [2018-12-02 15:28:21,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 15:28:21,956 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:22,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:23,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:23,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 150 states and 199 transitions. [2018-12-02 15:28:23,522 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 199 transitions. [2018-12-02 15:28:23,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 15:28:23,522 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:23,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:23,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:24,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:24,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 152 states and 203 transitions. [2018-12-02 15:28:24,680 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 203 transitions. [2018-12-02 15:28:24,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-02 15:28:24,680 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:25,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:30,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:30,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 163 states and 221 transitions. [2018-12-02 15:28:30,915 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 221 transitions. [2018-12-02 15:28:30,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-02 15:28:30,916 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:30,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:30,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:30,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 162 states and 220 transitions. [2018-12-02 15:28:30,942 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 220 transitions. [2018-12-02 15:28:30,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-02 15:28:30,943 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:31,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:31,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:31,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 114 states and 143 transitions. [2018-12-02 15:28:31,074 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 143 transitions. [2018-12-02 15:28:31,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-02 15:28:31,074 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:31,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:32,820 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2018-12-02 15:28:37,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:37,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 129 states and 171 transitions. [2018-12-02 15:28:37,646 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 171 transitions. [2018-12-02 15:28:37,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-02 15:28:37,646 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:37,946 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:41,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:41,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 136 states and 180 transitions. [2018-12-02 15:28:41,045 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 180 transitions. [2018-12-02 15:28:41,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 15:28:41,045 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:41,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-02 15:28:44,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:44,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 147 states and 195 transitions. [2018-12-02 15:28:44,796 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 195 transitions. [2018-12-02 15:28:44,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 15:28:44,796 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:44,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:47,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:47,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 154 states and 203 transitions. [2018-12-02 15:28:47,445 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 203 transitions. [2018-12-02 15:28:47,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 15:28:47,446 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:49,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:28:51,160 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2018-12-02 15:28:52,409 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2018-12-02 15:28:57,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:28:57,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 165 states and 214 transitions. [2018-12-02 15:28:57,610 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 214 transitions. [2018-12-02 15:28:57,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-02 15:28:57,611 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:28:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:28:59,833 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:29:02,081 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2018-12-02 15:29:05,332 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2018-12-02 15:29:17,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:29:17,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 181 states and 244 transitions. [2018-12-02 15:29:17,283 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 244 transitions. [2018-12-02 15:29:17,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-02 15:29:17,283 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:29:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:29:18,638 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:29:29,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:29:29,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 197 states and 280 transitions. [2018-12-02 15:29:29,427 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 280 transitions. [2018-12-02 15:29:29,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-02 15:29:29,427 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:29:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:29:29,448 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-02 15:29:32,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:29:32,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 204 states and 288 transitions. [2018-12-02 15:29:32,467 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 288 transitions. [2018-12-02 15:29:32,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-02 15:29:32,467 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:29:32,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:29:32,550 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:29:38,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:29:38,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 210 states and 297 transitions. [2018-12-02 15:29:38,527 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 297 transitions. [2018-12-02 15:29:38,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-02 15:29:38,527 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:29:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:29:38,696 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:29:42,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:29:42,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 216 states and 306 transitions. [2018-12-02 15:29:42,929 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 306 transitions. [2018-12-02 15:29:42,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-02 15:29:42,929 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:29:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:29:42,951 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-02 15:29:46,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:29:46,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 191 states and 272 transitions. [2018-12-02 15:29:46,865 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 272 transitions. [2018-12-02 15:29:46,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-02 15:29:46,866 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:29:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:29:47,348 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:29:52,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:29:52,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 172 states and 248 transitions. [2018-12-02 15:29:52,528 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 248 transitions. [2018-12-02 15:29:52,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-02 15:29:52,529 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:29:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:29:54,714 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:30:00,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:30:00,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 173 states and 251 transitions. [2018-12-02 15:30:00,384 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 251 transitions. [2018-12-02 15:30:00,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-02 15:30:00,385 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:30:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:30:00,404 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-02 15:30:00,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:30:00,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 173 states and 250 transitions. [2018-12-02 15:30:00,614 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 250 transitions. [2018-12-02 15:30:00,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-02 15:30:00,614 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:30:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:30:04,666 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:30:11,590 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2018-12-02 15:30:13,872 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 38 [2018-12-02 15:30:28,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:30:28,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 197 states and 300 transitions. [2018-12-02 15:30:28,943 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 300 transitions. [2018-12-02 15:30:28,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-02 15:30:28,943 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:30:28,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:30:31,404 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 25 [2018-12-02 15:30:37,513 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:30:47,030 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2018-12-02 15:30:56,551 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2018-12-02 15:31:10,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:31:10,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 213 states and 333 transitions. [2018-12-02 15:31:10,075 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 333 transitions. [2018-12-02 15:31:10,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-12-02 15:31:10,076 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:31:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:31:13,224 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:31:26,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:31:26,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 220 states and 349 transitions. [2018-12-02 15:31:26,142 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 349 transitions. [2018-12-02 15:31:26,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-12-02 15:31:26,143 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:31:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:31:32,641 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:31:45,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:31:45,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 227 states and 361 transitions. [2018-12-02 15:31:45,554 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 361 transitions. [2018-12-02 15:31:45,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-12-02 15:31:45,555 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:31:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:31:50,089 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:32:04,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:32:04,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 240 states and 386 transitions. [2018-12-02 15:32:04,502 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 386 transitions. [2018-12-02 15:32:04,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-12-02 15:32:04,502 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:32:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:32:04,627 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:32:16,260 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2018-12-02 15:32:24,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:32:24,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 256 states and 414 transitions. [2018-12-02 15:32:24,913 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 414 transitions. [2018-12-02 15:32:24,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-02 15:32:24,914 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:32:24,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:32:30,673 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:33:04,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:33:04,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 276 states and 477 transitions. [2018-12-02 15:33:04,693 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 477 transitions. [2018-12-02 15:33:04,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-02 15:33:04,694 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:33:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:33:11,972 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:33:18,808 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2018-12-02 15:33:41,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:33:41,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 295 states and 526 transitions. [2018-12-02 15:33:41,575 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 526 transitions. [2018-12-02 15:33:41,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-02 15:33:41,575 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:33:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:33:42,004 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:33:43,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:33:43,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 296 states and 527 transitions. [2018-12-02 15:33:43,453 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 527 transitions. [2018-12-02 15:33:43,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-02 15:33:43,454 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:33:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:33:44,651 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:34:04,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:34:04,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 312 states and 559 transitions. [2018-12-02 15:34:04,289 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 559 transitions. [2018-12-02 15:34:04,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-02 15:34:04,290 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:34:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:34:04,722 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:34:10,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:34:10,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 318 states and 568 transitions. [2018-12-02 15:34:10,195 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 568 transitions. [2018-12-02 15:34:10,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-02 15:34:10,196 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:34:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:34:22,196 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:34:38,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:34:38,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 324 states and 591 transitions. [2018-12-02 15:34:38,721 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 591 transitions. [2018-12-02 15:34:38,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-02 15:34:38,722 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:34:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:34:48,553 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:34:57,920 WARN L180 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2018-12-02 15:35:11,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:35:11,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 334 states and 604 transitions. [2018-12-02 15:35:11,634 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 604 transitions. [2018-12-02 15:35:11,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-12-02 15:35:11,634 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:35:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:35:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:35:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:35:12,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:35:12,029 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 72 iterations. [2018-12-02 15:35:12,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 03:35:12 ImpRootNode [2018-12-02 15:35:12,051 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-02 15:35:12,051 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 15:35:12,051 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 15:35:12,051 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 15:35:12,051 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:28:10" (3/4) ... [2018-12-02 15:35:12,053 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 15:35:12,088 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f293837b-ae00-43c3-b90e-083773462fae/bin-2019/ukojak/witness.graphml [2018-12-02 15:35:12,088 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 15:35:12,089 INFO L168 Benchmark]: Toolchain (without parser) took 422072.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 951.7 MB in the beginning and 632.2 MB in the end (delta: 319.5 MB). Peak memory consumption was 464.7 MB. Max. memory is 11.5 GB. [2018-12-02 15:35:12,089 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 15:35:12,089 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -151.5 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-12-02 15:35:12,090 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 15:35:12,090 INFO L168 Benchmark]: Boogie Preprocessor took 17.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 15:35:12,090 INFO L168 Benchmark]: RCFGBuilder took 341.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 57.3 MB). Peak memory consumption was 57.3 MB. Max. memory is 11.5 GB. [2018-12-02 15:35:12,090 INFO L168 Benchmark]: CodeCheck took 421379.50 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 31.5 MB). Free memory was 1.0 GB in the beginning and 638.8 MB in the end (delta: 401.6 MB). Peak memory consumption was 433.1 MB. Max. memory is 11.5 GB. [2018-12-02 15:35:12,091 INFO L168 Benchmark]: Witness Printer took 37.32 ms. Allocated memory is still 1.2 GB. Free memory was 638.8 MB in the beginning and 632.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-02 15:35:12,093 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, 124 locations, 59 error locations. UNSAFE Result, 421.3s OverallTime, 72 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, -523410912 SDslu, -1226211164 SDs, 0 SdLazy, -592240274 SolverSat, 325318522 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 62.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12772 GetRequests, 10995 SyntacticMatches, 553 SemanticMatches, 1224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 836602 ImplicationChecksByTransitivity, 415.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 76.1s InterpolantComputationTime, 1387 NumberOfCodeBlocks, 1387 NumberOfCodeBlocksAsserted, 72 NumberOfCheckSat, 1278 ConstructedInterpolants, 0 QuantifiedInterpolants, 523484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 71 InterpolantComputations, 45 PerfectInterpolantSequences, 22/174 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 - CounterExampleResult [Line: 1040]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L994] SLL* list = malloc(sizeof(SLL)); [L995] list->next = ((void*)0) [L996] list->prev = ((void*)0) [L997] list->colour = BLACK [L999] SLL* end = list; [L1002] COND TRUE __VERIFIER_nondet_int() [L1005] end->next = malloc(sizeof(SLL)) [L1006] EXPR end->next [L1006] end->next->prev = end [L1007] EXPR end->next [L1007] end = end->next [L1008] end->next = ((void*)0) [L1010] COND FALSE !(__VERIFIER_nondet_int()) [L1016] end->colour = RED [L1017] end->next = malloc(sizeof(SLL)) [L1018] EXPR end->next [L1018] end->next->prev = end [L1019] EXPR end->next [L1019] end = end->next [L1020] end->next = ((void*)0) [L1021] end->colour = BLACK [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1025] end = ((void*)0) [L1026] end = list [L1029] COND FALSE !(!(((void*)0) != end)) [L1030] EXPR end->colour [L1030] COND FALSE !(!(BLACK == end->colour)) [L1032] COND TRUE ((void*)0) != end [L1034] EXPR end->colour [L1034] COND FALSE !(RED == end->colour) [L1040] EXPR end->next [L1040] COND FALSE !(!(end->next)) [L1041] EXPR end->next [L1041] end = end->next [L1032] COND TRUE ((void*)0) != end [L1034] EXPR end->colour [L1034] COND TRUE RED == end->colour [L1036] EXPR end->next [L1036] end = end->next [L1037] EXPR end->next [L1037] end = end->next [L1040] end->next * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 268.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -151.5 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 341.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 57.3 MB). Peak memory consumption was 57.3 MB. Max. memory is 11.5 GB. * CodeCheck took 421379.50 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 31.5 MB). Free memory was 1.0 GB in the beginning and 638.8 MB in the end (delta: 401.6 MB). Peak memory consumption was 433.1 MB. Max. memory is 11.5 GB. * Witness Printer took 37.32 ms. Allocated memory is still 1.2 GB. Free memory was 638.8 MB in the beginning and 632.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...