./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.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_479ae6dd-b4dd-4e5f-91b6-dba1c3c3653f/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_479ae6dd-b4dd-4e5f-91b6-dba1c3c3653f/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_479ae6dd-b4dd-4e5f-91b6-dba1c3c3653f/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_479ae6dd-b4dd-4e5f-91b6-dba1c3c3653f/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_479ae6dd-b4dd-4e5f-91b6-dba1c3c3653f/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_479ae6dd-b4dd-4e5f-91b6-dba1c3c3653f/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 cbb495583d601bf9f19d9da57531415381b22d5a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 16:02:27,984 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 16:02:27,985 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 16:02:27,991 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 16:02:27,991 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 16:02:27,992 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 16:02:27,993 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 16:02:27,994 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 16:02:27,995 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 16:02:27,995 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 16:02:27,996 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 16:02:27,996 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 16:02:27,997 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 16:02:27,997 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 16:02:27,998 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 16:02:27,998 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 16:02:27,999 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 16:02:28,000 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 16:02:28,001 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 16:02:28,001 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 16:02:28,002 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 16:02:28,003 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 16:02:28,004 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 16:02:28,004 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 16:02:28,004 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 16:02:28,005 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 16:02:28,005 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 16:02:28,006 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 16:02:28,006 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 16:02:28,007 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 16:02:28,007 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 16:02:28,007 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 16:02:28,007 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 16:02:28,008 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 16:02:28,008 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 16:02:28,009 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 16:02:28,009 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_479ae6dd-b4dd-4e5f-91b6-dba1c3c3653f/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-09 16:02:28,016 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 16:02:28,016 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 16:02:28,017 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 16:02:28,017 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 16:02:28,017 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 16:02:28,017 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 16:02:28,017 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 16:02:28,017 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 16:02:28,018 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 16:02:28,018 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 16:02:28,018 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 16:02:28,018 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 16:02:28,018 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-09 16:02:28,018 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 16:02:28,018 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 16:02:28,018 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 16:02:28,018 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 16:02:28,019 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 16:02:28,019 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 16:02:28,019 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 16:02:28,019 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 16:02:28,019 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 16:02:28,019 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 16:02:28,019 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 16:02:28,020 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 16:02:28,020 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_479ae6dd-b4dd-4e5f-91b6-dba1c3c3653f/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 -> cbb495583d601bf9f19d9da57531415381b22d5a [2018-12-09 16:02:28,037 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 16:02:28,045 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 16:02:28,048 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 16:02:28,049 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 16:02:28,049 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 16:02:28,050 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_479ae6dd-b4dd-4e5f-91b6-dba1c3c3653f/bin-2019/ukojak/../../sv-benchmarks/c/array-memsafety/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-12-09 16:02:28,095 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_479ae6dd-b4dd-4e5f-91b6-dba1c3c3653f/bin-2019/ukojak/data/cadf659be/662a6457258d43f19ebb1f54830a5ec1/FLAGa99b69fa7 [2018-12-09 16:02:28,517 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 16:02:28,517 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_479ae6dd-b4dd-4e5f-91b6-dba1c3c3653f/sv-benchmarks/c/array-memsafety/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-12-09 16:02:28,524 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_479ae6dd-b4dd-4e5f-91b6-dba1c3c3653f/bin-2019/ukojak/data/cadf659be/662a6457258d43f19ebb1f54830a5ec1/FLAGa99b69fa7 [2018-12-09 16:02:28,532 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_479ae6dd-b4dd-4e5f-91b6-dba1c3c3653f/bin-2019/ukojak/data/cadf659be/662a6457258d43f19ebb1f54830a5ec1 [2018-12-09 16:02:28,533 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 16:02:28,534 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 16:02:28,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 16:02:28,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 16:02:28,536 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 16:02:28,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:02:28" (1/1) ... [2018-12-09 16:02:28,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c8ed641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:02:28, skipping insertion in model container [2018-12-09 16:02:28,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:02:28" (1/1) ... [2018-12-09 16:02:28,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 16:02:28,565 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 16:02:28,704 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:02:28,710 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 16:02:28,765 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:02:28,784 INFO L195 MainTranslator]: Completed translation [2018-12-09 16:02:28,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:02:28 WrapperNode [2018-12-09 16:02:28,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 16:02:28,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 16:02:28,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 16:02:28,785 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 16:02:28,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:02:28" (1/1) ... [2018-12-09 16:02:28,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:02:28" (1/1) ... [2018-12-09 16:02:28,810 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 16:02:28,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 16:02:28,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 16:02:28,810 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 16:02:28,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:02:28" (1/1) ... [2018-12-09 16:02:28,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:02:28" (1/1) ... [2018-12-09 16:02:28,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:02:28" (1/1) ... [2018-12-09 16:02:28,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:02:28" (1/1) ... [2018-12-09 16:02:28,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:02:28" (1/1) ... [2018-12-09 16:02:28,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:02:28" (1/1) ... [2018-12-09 16:02:28,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:02:28" (1/1) ... [2018-12-09 16:02:28,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 16:02:28,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 16:02:28,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 16:02:28,826 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 16:02:28,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:02:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_479ae6dd-b4dd-4e5f-91b6-dba1c3c3653f/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 [2018-12-09 16:02:28,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 16:02:28,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 16:02:28,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 16:02:28,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 16:02:28,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 16:02:28,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 16:02:29,071 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 16:02:29,071 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-09 16:02:29,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:02:29 BoogieIcfgContainer [2018-12-09 16:02:29,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 16:02:29,072 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 16:02:29,072 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 16:02:29,080 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 16:02:29,080 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:02:29" (1/1) ... [2018-12-09 16:02:29,088 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:02:29,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:29,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 28 states and 30 transitions. [2018-12-09 16:02:29,111 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2018-12-09 16:02:29,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-09 16:02:29,113 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:29,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:02:29,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:29,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 27 states and 29 transitions. [2018-12-09 16:02:29,230 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2018-12-09 16:02:29,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-09 16:02:29,230 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:29,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:02:29,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:29,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2018-12-09 16:02:29,327 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2018-12-09 16:02:29,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-09 16:02:29,329 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:29,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:29,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:02:29,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:29,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 25 states and 27 transitions. [2018-12-09 16:02:29,425 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-12-09 16:02:29,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-09 16:02:29,425 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:29,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:02:29,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:29,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2018-12-09 16:02:29,608 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-12-09 16:02:29,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-09 16:02:29,608 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:29,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:02:29,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:29,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 25 states and 27 transitions. [2018-12-09 16:02:29,729 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-12-09 16:02:29,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-09 16:02:29,730 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:29,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:02:30,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:30,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 26 states and 29 transitions. [2018-12-09 16:02:30,064 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2018-12-09 16:02:30,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 16:02:30,065 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:30,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:30,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:02:30,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:30,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2018-12-09 16:02:30,244 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2018-12-09 16:02:30,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 16:02:30,244 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:30,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:30,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:02:30,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:30,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 30 states and 37 transitions. [2018-12-09 16:02:30,640 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2018-12-09 16:02:30,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 16:02:30,640 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:30,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:02:30,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:30,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 32 states and 41 transitions. [2018-12-09 16:02:30,759 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2018-12-09 16:02:30,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 16:02:30,759 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:30,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:02:31,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:31,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 34 states and 44 transitions. [2018-12-09 16:02:31,133 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2018-12-09 16:02:31,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 16:02:31,134 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:31,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:02:31,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:31,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 35 states and 45 transitions. [2018-12-09 16:02:31,216 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2018-12-09 16:02:31,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 16:02:31,216 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:31,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:02:31,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:31,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 38 states and 50 transitions. [2018-12-09 16:02:31,738 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 50 transitions. [2018-12-09 16:02:31,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 16:02:31,738 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:31,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:02:32,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:32,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 41 states and 56 transitions. [2018-12-09 16:02:32,347 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2018-12-09 16:02:32,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 16:02:32,347 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:32,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:02:33,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:33,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 44 states and 61 transitions. [2018-12-09 16:02:33,891 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 61 transitions. [2018-12-09 16:02:33,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 16:02:33,891 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:33,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:02:34,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:34,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 45 states and 63 transitions. [2018-12-09 16:02:34,143 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 63 transitions. [2018-12-09 16:02:34,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 16:02:34,143 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:34,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:02:39,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:39,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 51 states and 74 transitions. [2018-12-09 16:02:39,033 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2018-12-09 16:02:39,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 16:02:39,034 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:39,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:02:45,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:45,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 58 states and 88 transitions. [2018-12-09 16:02:45,266 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 88 transitions. [2018-12-09 16:02:45,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 16:02:45,266 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:45,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:02:46,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:46,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 60 states and 93 transitions. [2018-12-09 16:02:46,124 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 93 transitions. [2018-12-09 16:02:46,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 16:02:46,124 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:46,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 16:02:47,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:47,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 63 states and 98 transitions. [2018-12-09 16:02:47,818 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 98 transitions. [2018-12-09 16:02:47,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 16:02:47,819 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:48,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:02:54,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:54,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 70 states and 112 transitions. [2018-12-09 16:02:54,004 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 112 transitions. [2018-12-09 16:02:54,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 16:02:54,004 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:54,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 16:02:54,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:54,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 65 states and 105 transitions. [2018-12-09 16:02:54,348 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 105 transitions. [2018-12-09 16:02:54,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 16:02:54,348 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:54,696 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:02:57,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:57,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 68 states and 107 transitions. [2018-12-09 16:02:57,310 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 107 transitions. [2018-12-09 16:02:57,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 16:02:57,310 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:57,318 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 16:02:57,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:02:57,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 69 states and 109 transitions. [2018-12-09 16:02:57,716 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 109 transitions. [2018-12-09 16:02:57,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 16:02:57,716 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:02:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:02:58,811 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:03:03,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:03:03,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 72 states and 117 transitions. [2018-12-09 16:03:03,016 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 117 transitions. [2018-12-09 16:03:03,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 16:03:03,016 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:03:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:03:03,026 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 16:03:03,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:03:03,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 69 states and 111 transitions. [2018-12-09 16:03:03,394 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 111 transitions. [2018-12-09 16:03:03,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 16:03:03,395 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:03:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:03:04,720 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:03:13,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:03:13,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 78 states and 138 transitions. [2018-12-09 16:03:13,538 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 138 transitions. [2018-12-09 16:03:13,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 16:03:13,538 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:03:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:03:13,555 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 16:03:15,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:03:15,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 81 states and 142 transitions. [2018-12-09 16:03:15,703 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 142 transitions. [2018-12-09 16:03:15,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 16:03:15,704 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:03:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:03:15,711 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-09 16:03:16,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:03:16,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 82 states and 143 transitions. [2018-12-09 16:03:16,346 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 143 transitions. [2018-12-09 16:03:16,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 16:03:16,347 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:03:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:03:16,363 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-09 16:03:18,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:03:18,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 83 states and 145 transitions. [2018-12-09 16:03:18,180 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 145 transitions. [2018-12-09 16:03:18,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 16:03:18,181 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:03:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:03:20,988 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:03:22,304 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2018-12-09 16:03:26,406 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2018-12-09 16:03:29,061 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2018-12-09 16:03:29,530 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2018-12-09 16:03:30,642 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2018-12-09 16:03:33,122 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2018-12-09 16:03:33,581 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2018-12-09 16:03:37,773 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2018-12-09 16:03:41,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:03:41,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 92 states and 167 transitions. [2018-12-09 16:03:41,347 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 167 transitions. [2018-12-09 16:03:41,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 16:03:41,348 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:03:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:03:43,698 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 16:03:49,755 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2018-12-09 16:03:54,357 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2018-12-09 16:03:54,893 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2018-12-09 16:04:05,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:04:05,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 105 states and 204 transitions. [2018-12-09 16:04:05,795 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 204 transitions. [2018-12-09 16:04:05,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 16:04:05,795 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:04:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:04:05,810 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-09 16:04:08,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:04:08,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 108 states and 207 transitions. [2018-12-09 16:04:08,412 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 207 transitions. [2018-12-09 16:04:08,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 16:04:08,412 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:04:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:04:10,393 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-09 16:04:13,767 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2018-12-09 16:04:16,984 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2018-12-09 16:04:32,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:04:32,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 121 states and 245 transitions. [2018-12-09 16:04:32,839 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 245 transitions. [2018-12-09 16:04:32,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 16:04:32,840 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:04:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:04:33,899 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-09 16:04:37,029 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2018-12-09 16:04:39,810 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2018-12-09 16:04:44,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:04:44,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 125 states and 255 transitions. [2018-12-09 16:04:44,287 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 255 transitions. [2018-12-09 16:04:44,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 16:04:44,288 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:04:44,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:04:51,833 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:04:59,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:04:59,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 126 states and 255 transitions. [2018-12-09 16:04:59,990 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 255 transitions. [2018-12-09 16:04:59,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 16:04:59,990 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:04:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:05:00,015 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:05:06,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:05:06,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 33 transitions. [2018-12-09 16:05:06,163 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2018-12-09 16:05:06,163 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 16:05:06,163 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 37 iterations. [2018-12-09 16:05:06,170 INFO L779 CodeCheckObserver]: All specifications hold 15 specifications checked. All of them hold [2018-12-09 16:05:06,381 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2018-12-09 16:05:06,754 WARN L180 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2018-12-09 16:05:06,938 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2018-12-09 16:05:06,949 INFO L583 CodeCheckObserver]: Invariant with dag size 15 [2018-12-09 16:05:06,953 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 16:05:06,956 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 16:05:06,957 INFO L583 CodeCheckObserver]: Invariant with dag size 3 [2018-12-09 16:05:06,957 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 16:05:06,957 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 16:05:06,957 INFO L583 CodeCheckObserver]: Invariant with dag size 58 [2018-12-09 16:05:06,959 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,959 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:06,959 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,960 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:06,960 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,960 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 16:05:06,960 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,960 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,960 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,960 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:06,960 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,960 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:06,961 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,961 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 16:05:06,961 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,961 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:06,961 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,961 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:06,961 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,961 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,961 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 16:05:06,962 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,963 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,963 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:06,963 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,964 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:06,964 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,964 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 16:05:06,964 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,964 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,964 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,964 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:06,964 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,964 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:06,965 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,965 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 16:05:06,965 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,965 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:06,965 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,965 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:06,965 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,965 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,965 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 16:05:06,966 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:06,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 04:05:06 ImpRootNode [2018-12-09 16:05:06,966 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 16:05:06,967 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 16:05:06,967 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 16:05:06,967 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 16:05:06,967 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:02:29" (3/4) ... [2018-12-09 16:05:06,969 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 16:05:06,975 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-12-09 16:05:06,975 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-09 16:05:06,976 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 16:05:06,992 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((!(s1 == 0) && s1 + 1 <= unknown-#length-unknown[s1]) && 1 == \valid[s2]) && 0 == unknown-#memory_int-unknown[s2][unknown-#length-unknown[s2] + -1]) && !(s2 <= 1)) && 0 == unknown-#memory_int-unknown[s1][unknown-#length-unknown[s1] + -1]) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) && 0 < s1 + 1) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]]) && s2 + 1 <= unknown-#length-unknown[s2]) && 1 == \valid[s1]) || (((((((((1 <= unknown-#length-unknown[s1] && 0 == s2) && 1 == \valid[s2]) && 1 <= unknown-#length-unknown[s2]) && s1 == 0) && 0 == unknown-#memory_int-unknown[s2][unknown-#length-unknown[s2] + -1]) && 0 == unknown-#memory_int-unknown[s1][unknown-#length-unknown[s1] + -1]) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]]) && 1 == \valid[s1])) || (((((((((((!(s1 == 0) && s1 + 1 <= unknown-#length-unknown[s1]) && 1 <= s2) && 1 == \valid[s2]) && 0 == unknown-#memory_int-unknown[s2][unknown-#length-unknown[s2] + -1]) && 0 == unknown-#memory_int-unknown[s1][unknown-#length-unknown[s1] + -1]) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) && (s1 + 2 <= unknown-#length-unknown[s1] || 1 == s1)) && 0 < s1 + 1) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]]) && s2 + 1 <= unknown-#length-unknown[s2]) && 1 == \valid[s1]) [2018-12-09 16:05:06,992 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char))) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]] [2018-12-09 16:05:06,992 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-12-09 16:05:07,003 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_479ae6dd-b4dd-4e5f-91b6-dba1c3c3653f/bin-2019/ukojak/witness.graphml [2018-12-09 16:05:07,003 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 16:05:07,004 INFO L168 Benchmark]: Toolchain (without parser) took 158470.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 954.9 MB in the beginning and 809.0 MB in the end (delta: 145.9 MB). Peak memory consumption was 305.3 MB. Max. memory is 11.5 GB. [2018-12-09 16:05:07,004 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-12-09 16:05:07,004 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -121.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-09 16:05:07,005 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.85 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:05:07,005 INFO L168 Benchmark]: Boogie Preprocessor took 15.18 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:05:07,005 INFO L168 Benchmark]: RCFGBuilder took 246.37 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: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. [2018-12-09 16:05:07,005 INFO L168 Benchmark]: CodeCheck took 157894.10 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 66.1 MB). Free memory was 1.0 GB in the beginning and 809.0 MB in the end (delta: 234.2 MB). Peak memory consumption was 300.3 MB. Max. memory is 11.5 GB. [2018-12-09 16:05:07,005 INFO L168 Benchmark]: Witness Printer took 36.71 ms. Allocated memory is still 1.2 GB. Free memory is still 809.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:05:07,006 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, 37 locations, 15 error locations. SAFE Result, 157.0s OverallTime, 37 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 545259520 SDtfs, -20391572 SDslu, 258066884 SDs, 0 SdLazy, 569252474 SolverSat, -102130602 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4284 GetRequests, 3483 SyntacticMatches, 129 SemanticMatches, 672 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205407 ImplicationChecksByTransitivity, 154.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 20.8s InterpolantComputationTime, 401 NumberOfCodeBlocks, 401 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 365 ConstructedInterpolants, 0 QuantifiedInterpolants, 75541 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 36 InterpolantComputations, 23 PerfectInterpolantSequences, 89/219 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: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 559]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 559]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 560]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 560]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - InvariantResult [Line: 540]: Loop Invariant [2018-12-09 16:05:07,008 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 16:05:07,008 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char))) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]] - InvariantResult [Line: 548]: Loop Invariant [2018-12-09 16:05:07,008 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 16:05:07,008 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 543]: Loop Invariant [2018-12-09 16:05:07,009 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,010 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:07,010 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,010 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:07,010 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,010 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 16:05:07,010 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,010 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,010 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,010 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:07,010 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,011 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:07,011 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,011 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 16:05:07,011 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,011 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:07,011 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,011 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:07,011 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,011 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,011 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 16:05:07,011 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,013 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,013 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:07,013 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,013 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:07,013 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,013 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 16:05:07,013 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,013 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,014 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,014 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:07,014 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,014 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:07,014 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,014 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 16:05:07,014 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,014 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:07,014 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,014 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:05:07,014 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,015 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 16:05:07,015 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 16:05:07,015 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: (((((((((((!(s1 == 0) && s1 + 1 <= unknown-#length-unknown[s1]) && 1 == \valid[s2]) && 0 == unknown-#memory_int-unknown[s2][unknown-#length-unknown[s2] + -1]) && !(s2 <= 1)) && 0 == unknown-#memory_int-unknown[s1][unknown-#length-unknown[s1] + -1]) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) && 0 < s1 + 1) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]]) && s2 + 1 <= unknown-#length-unknown[s2]) && 1 == \valid[s1]) || (((((((((1 <= unknown-#length-unknown[s1] && 0 == s2) && 1 == \valid[s2]) && 1 <= unknown-#length-unknown[s2]) && s1 == 0) && 0 == unknown-#memory_int-unknown[s2][unknown-#length-unknown[s2] + -1]) && 0 == unknown-#memory_int-unknown[s1][unknown-#length-unknown[s1] + -1]) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]]) && 1 == \valid[s1])) || (((((((((((!(s1 == 0) && s1 + 1 <= unknown-#length-unknown[s1]) && 1 <= s2) && 1 == \valid[s2]) && 0 == unknown-#memory_int-unknown[s2][unknown-#length-unknown[s2] + -1]) && 0 == unknown-#memory_int-unknown[s1][unknown-#length-unknown[s1] + -1]) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) && (s1 + 2 <= unknown-#length-unknown[s1] || 1 == s1)) && 0 < s1 + 1) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]]) && s2 + 1 <= unknown-#length-unknown[s2]) && 1 == \valid[s1]) * 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 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 250.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -121.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.85 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.18 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 246.37 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: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. * CodeCheck took 157894.10 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 66.1 MB). Free memory was 1.0 GB in the beginning and 809.0 MB in the end (delta: 234.2 MB). Peak memory consumption was 300.3 MB. Max. memory is 11.5 GB. * Witness Printer took 36.71 ms. Allocated memory is still 1.2 GB. Free memory is still 809.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - 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 main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 main_old_#valid - 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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - 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 main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 main_old_#valid - 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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - 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 main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 main_old_#valid - 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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - 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 main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 main_old_#valid - 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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length RESULT: Ultimate proved your program to be correct! Received shutdown request...