./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/bubblesort-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_34428b9b-23ca-488a-93db-a793034d51cf/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_34428b9b-23ca-488a-93db-a793034d51cf/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_34428b9b-23ca-488a-93db-a793034d51cf/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_34428b9b-23ca-488a-93db-a793034d51cf/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/bubblesort-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_34428b9b-23ca-488a-93db-a793034d51cf/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_34428b9b-23ca-488a-93db-a793034d51cf/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 c685955ff6c809f32f6abe44f773ce6a6ae39f94 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 15:49:42,073 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 15:49:42,074 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 15:49:42,080 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 15:49:42,080 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 15:49:42,080 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 15:49:42,081 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 15:49:42,082 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 15:49:42,082 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 15:49:42,083 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 15:49:42,083 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 15:49:42,083 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 15:49:42,084 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 15:49:42,084 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 15:49:42,085 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 15:49:42,085 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 15:49:42,085 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 15:49:42,086 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 15:49:42,087 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 15:49:42,088 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 15:49:42,088 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 15:49:42,089 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 15:49:42,090 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 15:49:42,090 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 15:49:42,090 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 15:49:42,090 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 15:49:42,091 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 15:49:42,092 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 15:49:42,092 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 15:49:42,092 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 15:49:42,093 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 15:49:42,093 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 15:49:42,093 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 15:49:42,093 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 15:49:42,094 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 15:49:42,094 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 15:49:42,094 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_34428b9b-23ca-488a-93db-a793034d51cf/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-02 15:49:42,101 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 15:49:42,101 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 15:49:42,101 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 15:49:42,102 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 15:49:42,102 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 15:49:42,102 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 15:49:42,102 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 15:49:42,102 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 15:49:42,102 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 15:49:42,102 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 15:49:42,102 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-02 15:49:42,102 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-02 15:49:42,102 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-02 15:49:42,103 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 15:49:42,103 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 15:49:42,103 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 15:49:42,103 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-02 15:49:42,103 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-02 15:49:42,103 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 15:49:42,103 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 15:49:42,103 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-02 15:49:42,103 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 15:49:42,103 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 15:49:42,103 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-02 15:49:42,104 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 15:49:42,104 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_34428b9b-23ca-488a-93db-a793034d51cf/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 -> c685955ff6c809f32f6abe44f773ce6a6ae39f94 [2018-12-02 15:49:42,120 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 15:49:42,127 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 15:49:42,128 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 15:49:42,129 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 15:49:42,130 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 15:49:42,130 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_34428b9b-23ca-488a-93db-a793034d51cf/bin-2019/ukojak/../../sv-benchmarks/c/array-memsafety/bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-12-02 15:49:42,164 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_34428b9b-23ca-488a-93db-a793034d51cf/bin-2019/ukojak/data/aca7d1481/a3c9cd96700648f3b29ae6c31b80803e/FLAGd9001b8af [2018-12-02 15:49:42,572 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 15:49:42,572 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_34428b9b-23ca-488a-93db-a793034d51cf/sv-benchmarks/c/array-memsafety/bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-12-02 15:49:42,578 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_34428b9b-23ca-488a-93db-a793034d51cf/bin-2019/ukojak/data/aca7d1481/a3c9cd96700648f3b29ae6c31b80803e/FLAGd9001b8af [2018-12-02 15:49:42,586 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_34428b9b-23ca-488a-93db-a793034d51cf/bin-2019/ukojak/data/aca7d1481/a3c9cd96700648f3b29ae6c31b80803e [2018-12-02 15:49:42,588 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 15:49:42,589 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 15:49:42,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 15:49:42,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 15:49:42,592 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 15:49:42,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:49:42" (1/1) ... [2018-12-02 15:49:42,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ac4e85d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:49:42, skipping insertion in model container [2018-12-02 15:49:42,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:49:42" (1/1) ... [2018-12-02 15:49:42,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 15:49:42,614 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 15:49:42,753 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 15:49:42,759 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 15:49:42,825 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 15:49:42,847 INFO L195 MainTranslator]: Completed translation [2018-12-02 15:49:42,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:49:42 WrapperNode [2018-12-02 15:49:42,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 15:49:42,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 15:49:42,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 15:49:42,848 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 15:49:42,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:49:42" (1/1) ... [2018-12-02 15:49:42,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:49:42" (1/1) ... [2018-12-02 15:49:42,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 15:49:42,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 15:49:42,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 15:49:42,873 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 15:49:42,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:49:42" (1/1) ... [2018-12-02 15:49:42,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:49:42" (1/1) ... [2018-12-02 15:49:42,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:49:42" (1/1) ... [2018-12-02 15:49:42,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:49:42" (1/1) ... [2018-12-02 15:49:42,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:49:42" (1/1) ... [2018-12-02 15:49:42,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:49:42" (1/1) ... [2018-12-02 15:49:42,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:49:42" (1/1) ... [2018-12-02 15:49:42,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 15:49:42,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 15:49:42,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 15:49:42,888 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 15:49:42,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:49:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_34428b9b-23ca-488a-93db-a793034d51cf/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 15:49:42,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 15:49:42,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 15:49:42,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 15:49:42,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 15:49:42,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 15:49:42,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 15:49:43,139 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 15:49:43,139 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-02 15:49:43,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:49:43 BoogieIcfgContainer [2018-12-02 15:49:43,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 15:49:43,140 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-02 15:49:43,140 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-02 15:49:43,146 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-02 15:49:43,147 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:49:43" (1/1) ... [2018-12-02 15:49:43,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:49:43,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:43,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2018-12-02 15:49:43,174 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2018-12-02 15:49:43,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-02 15:49:43,175 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:43,262 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 15:49:43,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:43,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 27 states and 29 transitions. [2018-12-02 15:49:43,290 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2018-12-02 15:49:43,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-02 15:49:43,290 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:43,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:43,319 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 15:49:43,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:43,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 30 states and 35 transitions. [2018-12-02 15:49:43,378 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2018-12-02 15:49:43,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-02 15:49:43,378 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:43,440 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 15:49:43,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:43,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 33 states and 42 transitions. [2018-12-02 15:49:43,664 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2018-12-02 15:49:43,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 15:49:43,664 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:43,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:43,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 15:49:44,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:44,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 37 states and 50 transitions. [2018-12-02 15:49:44,023 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions. [2018-12-02 15:49:44,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 15:49:44,024 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:44,033 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 15:49:44,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:44,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 36 states and 49 transitions. [2018-12-02 15:49:44,040 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2018-12-02 15:49:44,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 15:49:44,040 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:44,111 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 15:49:44,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:44,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 37 states and 51 transitions. [2018-12-02 15:49:44,272 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2018-12-02 15:49:44,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 15:49:44,274 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:44,288 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 15:49:44,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:44,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 36 states and 50 transitions. [2018-12-02 15:49:44,297 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2018-12-02 15:49:44,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 15:49:44,297 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:44,359 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 15:49:44,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:44,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 38 states and 53 transitions. [2018-12-02 15:49:44,476 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2018-12-02 15:49:44,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-02 15:49:44,477 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:44,489 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 15:49:44,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:44,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 37 states and 52 transitions. [2018-12-02 15:49:44,495 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2018-12-02 15:49:44,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-02 15:49:44,496 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:44,581 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 15:49:44,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:44,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 36 states and 51 transitions. [2018-12-02 15:49:44,901 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2018-12-02 15:49:44,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 15:49:44,902 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:44,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:49:44,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:44,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 32 states and 43 transitions. [2018-12-02 15:49:44,915 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2018-12-02 15:49:44,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 15:49:44,915 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:44,927 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 15:49:44,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:44,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 31 states and 42 transitions. [2018-12-02 15:49:44,934 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2018-12-02 15:49:44,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 15:49:44,935 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:45,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:49:45,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:45,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 34 states and 52 transitions. [2018-12-02 15:49:45,370 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2018-12-02 15:49:45,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 15:49:45,370 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:45,381 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 15:49:45,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:45,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 33 states and 51 transitions. [2018-12-02 15:49:45,475 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2018-12-02 15:49:45,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 15:49:45,476 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:45,674 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 15:49:46,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:46,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 37 states and 60 transitions. [2018-12-02 15:49:46,902 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2018-12-02 15:49:46,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 15:49:46,902 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:46,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:46,912 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 15:49:46,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:46,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 36 states and 59 transitions. [2018-12-02 15:49:46,930 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 59 transitions. [2018-12-02 15:49:46,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 15:49:46,930 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:46,945 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 15:49:47,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:47,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 42 states and 68 transitions. [2018-12-02 15:49:47,643 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 68 transitions. [2018-12-02 15:49:47,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 15:49:47,643 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:47,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:49:47,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:47,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 41 states and 67 transitions. [2018-12-02 15:49:47,710 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 67 transitions. [2018-12-02 15:49:47,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-02 15:49:47,711 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:47,757 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 15:49:48,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:48,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 46 states and 75 transitions. [2018-12-02 15:49:48,269 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 75 transitions. [2018-12-02 15:49:48,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 15:49:48,269 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:48,277 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:49:48,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:48,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 46 states and 74 transitions. [2018-12-02 15:49:48,331 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 74 transitions. [2018-12-02 15:49:48,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 15:49:48,331 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:48,347 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 15:49:48,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:48,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 50 states and 79 transitions. [2018-12-02 15:49:48,529 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 79 transitions. [2018-12-02 15:49:48,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 15:49:48,529 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:48,539 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 15:49:48,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:48,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 54 states and 82 transitions. [2018-12-02 15:49:48,702 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 82 transitions. [2018-12-02 15:49:48,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-02 15:49:48,702 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:48,713 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-02 15:49:48,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:48,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 55 states and 82 transitions. [2018-12-02 15:49:48,913 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 82 transitions. [2018-12-02 15:49:48,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-02 15:49:48,913 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:48,921 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 15:49:49,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:49,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2018-12-02 15:49:49,096 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2018-12-02 15:49:49,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 15:49:49,096 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:49,109 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 15:49:49,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:49,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 30 states and 35 transitions. [2018-12-02 15:49:49,128 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2018-12-02 15:49:49,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 15:49:49,128 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:49,311 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:49:51,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:51,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 36 states and 43 transitions. [2018-12-02 15:49:51,353 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2018-12-02 15:49:51,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 15:49:51,353 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:51,385 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:49:51,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:51,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 40 states and 46 transitions. [2018-12-02 15:49:51,414 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2018-12-02 15:49:51,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 15:49:51,414 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 15:49:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:49:51,460 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-12-02 15:49:51,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 15:49:51,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2018-12-02 15:49:51,737 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-02 15:49:51,737 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 15:49:51,737 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 29 iterations. [2018-12-02 15:49:51,753 INFO L779 CodeCheckObserver]: All specifications hold 13 specifications checked. All of them hold [2018-12-02 15:49:51,916 INFO L583 CodeCheckObserver]: Invariant with dag size 30 [2018-12-02 15:49:51,921 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 15:49:51,922 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 15:49:51,922 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 15:49:51,922 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 15:49:51,922 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 15:49:51,927 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 15:49:51,927 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 15:49:51,927 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 15:49:51,928 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 15:49:51,928 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 15:49:51,928 INFO L583 CodeCheckObserver]: Invariant with dag size 23 [2018-12-02 15:49:51,929 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 15:49:51,929 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 15:49:51,929 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 15:49:51,930 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 15:49:51,930 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 15:49:51,930 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 15:49:51,930 INFO L583 CodeCheckObserver]: Invariant with dag size 3 [2018-12-02 15:49:51,931 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 15:49:51,931 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 15:49:51,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 03:49:51 ImpRootNode [2018-12-02 15:49:51,932 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-02 15:49:51,932 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 15:49:51,932 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 15:49:51,933 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 15:49:51,933 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:49:43" (3/4) ... [2018-12-02 15:49:51,937 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 15:49:51,944 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-12-02 15:49:51,944 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-02 15:49:51,944 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 15:49:51,960 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\valid[__builtin_alloca (array_size * sizeof(int)) := 0] == \old(unknown-main_\old_#valid-unknown) && i < 0) || (((\valid[numbers] == 1 && \valid[__builtin_alloca (array_size * sizeof(int)) := 0] == \old(unknown-main_\old_#valid-unknown)) && numbers == 0) && 4 * i + 4 <= unknown-#length-unknown[numbers]) [2018-12-02 15:49:51,960 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((8 <= numbers + 4 * j && \valid[numbers] == 1) && \valid[__builtin_alloca (array_size * sizeof(int)) := 0] == \old(unknown-main_\old_#valid-unknown)) && numbers == 0) && 1 <= i) && 4 * i + 4 <= unknown-#length-unknown[numbers]) && numbers + 4 * j <= unknown-#length-unknown[numbers]) || ((((\valid[numbers] == 1 && \valid[__builtin_alloca (array_size * sizeof(int)) := 0] == \old(unknown-main_\old_#valid-unknown)) && j == 1) && numbers == 0) && 4 * i + 4 <= unknown-#length-unknown[numbers]) [2018-12-02 15:49:51,960 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-12-02 15:49:51,974 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_34428b9b-23ca-488a-93db-a793034d51cf/bin-2019/ukojak/witness.graphml [2018-12-02 15:49:51,974 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 15:49:51,974 INFO L168 Benchmark]: Toolchain (without parser) took 9386.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 211.3 MB). Free memory was 951.7 MB in the beginning and 1.2 GB in the end (delta: -238.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 15:49:51,976 INFO L168 Benchmark]: CDTParser took 0.10 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 15:49:51,976 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -160.9 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-12-02 15:49:51,976 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 15:49:51,976 INFO L168 Benchmark]: Boogie Preprocessor took 14.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 15:49:51,977 INFO L168 Benchmark]: RCFGBuilder took 251.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-12-02 15:49:51,977 INFO L168 Benchmark]: CodeCheck took 8792.25 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 88.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -115.6 MB). Peak memory consumption was 307.9 MB. Max. memory is 11.5 GB. [2018-12-02 15:49:51,977 INFO L168 Benchmark]: Witness Printer took 41.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. [2018-12-02 15:49:51,978 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, 34 locations, 13 error locations. SAFE Result, 8.5s OverallTime, 29 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 558891008 SDtfs, 1011235200 SDslu, 557383384 SDs, 0 SdLazy, 838218008 SolverSat, 1502152760 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2614 GetRequests, 2331 SyntacticMatches, 103 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15656 ImplicationChecksByTransitivity, 7.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 265 ConstructedInterpolants, 0 QuantifiedInterpolants, 24815 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 28 InterpolantComputations, 20 PerfectInterpolantSequences, 67/107 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: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 553]: 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: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold - InvariantResult [Line: 544]: Loop Invariant [2018-12-02 15:49:51,980 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 15:49:51,980 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 15:49:51,980 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 15:49:51,980 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 15:49:51,980 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 15:49:51,981 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 15:49:51,981 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 15:49:51,981 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 15:49:51,981 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 15:49:51,981 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: ((((((8 <= numbers + 4 * j && \valid[numbers] == 1) && \valid[__builtin_alloca (array_size * sizeof(int)) := 0] == \old(unknown-main_\old_#valid-unknown)) && numbers == 0) && 1 <= i) && 4 * i + 4 <= unknown-#length-unknown[numbers]) && numbers + 4 * j <= unknown-#length-unknown[numbers]) || ((((\valid[numbers] == 1 && \valid[__builtin_alloca (array_size * sizeof(int)) := 0] == \old(unknown-main_\old_#valid-unknown)) && j == 1) && numbers == 0) && 4 * i + 4 <= unknown-#length-unknown[numbers]) - InvariantResult [Line: 543]: Loop Invariant [2018-12-02 15:49:51,982 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 15:49:51,982 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 15:49:51,982 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 15:49:51,983 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 15:49:51,983 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 15:49:51,983 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: (\valid[__builtin_alloca (array_size * sizeof(int)) := 0] == \old(unknown-main_\old_#valid-unknown) && i < 0) || (((\valid[numbers] == 1 && \valid[__builtin_alloca (array_size * sizeof(int)) := 0] == \old(unknown-main_\old_#valid-unknown)) && numbers == 0) && 4 * i + 4 <= unknown-#length-unknown[numbers]) - InvariantResult [Line: 553]: Loop Invariant [2018-12-02 15:49:51,983 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 15:49:51,984 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 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 258.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -160.9 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 251.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * CodeCheck took 8792.25 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 88.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -115.6 MB). Peak memory consumption was 307.9 MB. Max. memory is 11.5 GB. * Witness Printer took 41.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. 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 #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 #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 #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 #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 #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 #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 #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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid RESULT: Ultimate proved your program to be correct! Received shutdown request...