./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/recursive-simple/id_i25_o25_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2b51d919-b38a-480a-9f1b-1b9cd76da3a5/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2b51d919-b38a-480a-9f1b-1b9cd76da3a5/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2b51d919-b38a-480a-9f1b-1b9cd76da3a5/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2b51d919-b38a-480a-9f1b-1b9cd76da3a5/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i25_o25_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2b51d919-b38a-480a-9f1b-1b9cd76da3a5/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2b51d919-b38a-480a-9f1b-1b9cd76da3a5/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 980109aaf5797fcdc56688cd1127831babfd66a2 ............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:37:03,135 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:37:03,137 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:37:03,146 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:37:03,146 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:37:03,147 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:37:03,148 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:37:03,149 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:37:03,151 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:37:03,152 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:37:03,153 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:37:03,153 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:37:03,154 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:37:03,155 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:37:03,156 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:37:03,156 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:37:03,157 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:37:03,159 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:37:03,160 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:37:03,162 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:37:03,163 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:37:03,164 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:37:03,165 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:37:03,166 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:37:03,166 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:37:03,167 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:37:03,168 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:37:03,168 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:37:03,169 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:37:03,174 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:37:03,174 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:37:03,175 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:37:03,175 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:37:03,175 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:37:03,176 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:37:03,176 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:37:03,177 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2b51d919-b38a-480a-9f1b-1b9cd76da3a5/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-10-27 00:37:03,188 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:37:03,188 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:37:03,189 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:37:03,189 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-27 00:37:03,190 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 00:37:03,190 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 00:37:03,190 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:37:03,191 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:37:03,191 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:37:03,191 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:37:03,191 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:37:03,191 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:37:03,191 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:37:03,191 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:37:03,191 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:37:03,192 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:37:03,192 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:37:03,192 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-27 00:37:03,192 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-27 00:37:03,192 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:37:03,192 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:37:03,192 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-27 00:37:03,193 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:37:03,193 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:37:03,193 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:37:03,193 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-27 00:37:03,193 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:37:03,193 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:37:03,193 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_2b51d919-b38a-480a-9f1b-1b9cd76da3a5/bin-2019/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 980109aaf5797fcdc56688cd1127831babfd66a2 [2018-10-27 00:37:03,222 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:37:03,231 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:37:03,234 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:37:03,235 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:37:03,236 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:37:03,236 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2b51d919-b38a-480a-9f1b-1b9cd76da3a5/bin-2019/ukojak/../../sv-benchmarks/c/recursive-simple/id_i25_o25_true-unreach-call_true-termination.c [2018-10-27 00:37:03,291 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2b51d919-b38a-480a-9f1b-1b9cd76da3a5/bin-2019/ukojak/data/e10208b69/b5a21f33e6454821be1c05d071d52b95/FLAGc9cbb94b8 [2018-10-27 00:37:03,657 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:37:03,658 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2b51d919-b38a-480a-9f1b-1b9cd76da3a5/sv-benchmarks/c/recursive-simple/id_i25_o25_true-unreach-call_true-termination.c [2018-10-27 00:37:03,662 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2b51d919-b38a-480a-9f1b-1b9cd76da3a5/bin-2019/ukojak/data/e10208b69/b5a21f33e6454821be1c05d071d52b95/FLAGc9cbb94b8 [2018-10-27 00:37:03,673 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2b51d919-b38a-480a-9f1b-1b9cd76da3a5/bin-2019/ukojak/data/e10208b69/b5a21f33e6454821be1c05d071d52b95 [2018-10-27 00:37:03,676 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:37:03,676 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 00:37:03,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:37:03,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:37:03,680 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:37:03,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:37:03" (1/1) ... [2018-10-27 00:37:03,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ba44a45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:03, skipping insertion in model container [2018-10-27 00:37:03,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:37:03" (1/1) ... [2018-10-27 00:37:03,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:37:03,707 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:37:03,819 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:37:03,822 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:37:03,831 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:37:03,839 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:37:03,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:03 WrapperNode [2018-10-27 00:37:03,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:37:03,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:37:03,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:37:03,840 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:37:03,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:03" (1/1) ... [2018-10-27 00:37:03,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:03" (1/1) ... [2018-10-27 00:37:03,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:37:03,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:37:03,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:37:03,864 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:37:03,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:03" (1/1) ... [2018-10-27 00:37:03,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:03" (1/1) ... [2018-10-27 00:37:03,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:03" (1/1) ... [2018-10-27 00:37:03,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:03" (1/1) ... [2018-10-27 00:37:03,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:03" (1/1) ... [2018-10-27 00:37:03,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:03" (1/1) ... [2018-10-27 00:37:03,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:03" (1/1) ... [2018-10-27 00:37:03,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:37:03,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:37:03,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:37:03,873 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:37:03,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2b51d919-b38a-480a-9f1b-1b9cd76da3a5/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-27 00:37:03,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:37:03,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:37:03,962 INFO L130 BoogieDeclarations]: Found specification of procedure id [2018-10-27 00:37:03,963 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2018-10-27 00:37:04,301 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:37:04,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:37:04 BoogieIcfgContainer [2018-10-27 00:37:04,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:37:04,302 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-27 00:37:04,302 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-27 00:37:04,312 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-27 00:37:04,312 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:37:04" (1/1) ... [2018-10-27 00:37:04,321 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:37:04,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:04,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-10-27 00:37:04,357 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-10-27 00:37:04,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-27 00:37:04,362 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:04,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:04,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:37:04,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:04,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 18 transitions. [2018-10-27 00:37:04,818 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-10-27 00:37:04,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-27 00:37:04,818 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:04,871 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-27 00:37:05,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:05,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 23 transitions. [2018-10-27 00:37:05,213 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2018-10-27 00:37:05,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-27 00:37:05,213 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:05,274 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-27 00:37:05,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:05,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 29 transitions. [2018-10-27 00:37:05,465 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2018-10-27 00:37:05,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-27 00:37:05,466 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:05,540 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-10-27 00:37:05,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:05,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 25 states and 36 transitions. [2018-10-27 00:37:05,926 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2018-10-27 00:37:05,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-27 00:37:05,927 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:05,979 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-10-27 00:37:06,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:06,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 28 states and 44 transitions. [2018-10-27 00:37:06,150 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2018-10-27 00:37:06,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-27 00:37:06,151 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:06,221 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-10-27 00:37:06,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:06,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 31 states and 53 transitions. [2018-10-27 00:37:06,400 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 53 transitions. [2018-10-27 00:37:06,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-27 00:37:06,400 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:06,489 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-10-27 00:37:06,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:06,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 34 states and 63 transitions. [2018-10-27 00:37:06,640 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 63 transitions. [2018-10-27 00:37:06,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-27 00:37:06,642 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:06,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:06,776 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-10-27 00:37:06,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:06,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 37 states and 74 transitions. [2018-10-27 00:37:06,937 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 74 transitions. [2018-10-27 00:37:06,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-27 00:37:06,938 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:07,007 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-10-27 00:37:07,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:07,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 40 states and 86 transitions. [2018-10-27 00:37:07,321 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 86 transitions. [2018-10-27 00:37:07,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-10-27 00:37:07,323 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:07,405 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-10-27 00:37:07,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:07,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 43 states and 99 transitions. [2018-10-27 00:37:07,543 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 99 transitions. [2018-10-27 00:37:07,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-10-27 00:37:07,544 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:07,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:07,616 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-10-27 00:37:07,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:07,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 46 states and 113 transitions. [2018-10-27 00:37:07,812 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 113 transitions. [2018-10-27 00:37:07,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-10-27 00:37:07,813 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:07,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:07,950 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2018-10-27 00:37:08,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:08,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 49 states and 128 transitions. [2018-10-27 00:37:08,179 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 128 transitions. [2018-10-27 00:37:08,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-10-27 00:37:08,180 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:08,292 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2018-10-27 00:37:09,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:09,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 52 states and 144 transitions. [2018-10-27 00:37:09,056 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 144 transitions. [2018-10-27 00:37:09,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-27 00:37:09,060 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:09,331 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2018-10-27 00:37:09,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:09,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 55 states and 161 transitions. [2018-10-27 00:37:09,497 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 161 transitions. [2018-10-27 00:37:09,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-10-27 00:37:09,498 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:09,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:09,584 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2018-10-27 00:37:09,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:09,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 58 states and 179 transitions. [2018-10-27 00:37:09,802 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 179 transitions. [2018-10-27 00:37:09,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-10-27 00:37:09,803 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:09,889 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2018-10-27 00:37:10,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:10,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 61 states and 198 transitions. [2018-10-27 00:37:10,027 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 198 transitions. [2018-10-27 00:37:10,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-27 00:37:10,028 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:10,112 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2018-10-27 00:37:10,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:10,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 64 states and 218 transitions. [2018-10-27 00:37:10,348 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 218 transitions. [2018-10-27 00:37:10,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-27 00:37:10,349 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:10,846 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2018-10-27 00:37:11,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:11,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 67 states and 239 transitions. [2018-10-27 00:37:11,370 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 239 transitions. [2018-10-27 00:37:11,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-27 00:37:11,371 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:11,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:11,507 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2018-10-27 00:37:11,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:11,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 70 states and 261 transitions. [2018-10-27 00:37:11,684 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 261 transitions. [2018-10-27 00:37:11,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-27 00:37:11,685 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:11,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2018-10-27 00:37:12,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:12,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 73 states and 284 transitions. [2018-10-27 00:37:12,362 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 284 transitions. [2018-10-27 00:37:12,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-10-27 00:37:12,363 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:12,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 0 proven. 610 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2018-10-27 00:37:12,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:12,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 76 states and 308 transitions. [2018-10-27 00:37:12,901 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 308 transitions. [2018-10-27 00:37:12,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-10-27 00:37:12,902 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:13,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2018-10-27 00:37:13,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:13,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 79 states and 333 transitions. [2018-10-27 00:37:13,924 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 333 transitions. [2018-10-27 00:37:13,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-10-27 00:37:13,925 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:14,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2018-10-27 00:37:14,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:14,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 82 states and 359 transitions. [2018-10-27 00:37:14,300 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 359 transitions. [2018-10-27 00:37:14,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-10-27 00:37:14,300 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:14,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:14,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 0 proven. 805 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2018-10-27 00:37:14,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:14,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 85 states and 386 transitions. [2018-10-27 00:37:14,655 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 386 transitions. [2018-10-27 00:37:14,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-10-27 00:37:14,656 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:14,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 0 proven. 876 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2018-10-27 00:37:15,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:15,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 88 states and 414 transitions. [2018-10-27 00:37:15,422 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 414 transitions. [2018-10-27 00:37:15,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-10-27 00:37:15,423 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:18,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1900 backedges. 0 proven. 950 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked. [2018-10-27 00:37:20,951 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-27 00:37:43,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:43,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2126 states to 167 states and 1144 transitions. [2018-10-27 00:37:43,805 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 1144 transitions. [2018-10-27 00:37:43,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-10-27 00:37:43,807 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:37:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:45,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2054 backedges. 1027 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2018-10-27 00:37:50,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:37:50,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2296 states to 89 states and 91 transitions. [2018-10-27 00:37:50,409 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 91 transitions. [2018-10-27 00:37:50,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 00:37:50,409 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 28 iterations. [2018-10-27 00:37:50,416 INFO L778 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-10-27 00:37:50,629 WARN L179 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 1 [2018-10-27 00:37:50,955 WARN L179 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 1 [2018-10-27 00:37:51,137 WARN L179 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 1 [2018-10-27 00:37:51,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 27.10 12:37:51 ImpRootNode [2018-10-27 00:37:51,137 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-27 00:37:51,138 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:37:51,138 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:37:51,138 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:37:51,138 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:37:04" (3/4) ... [2018-10-27 00:37:51,141 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 00:37:51,146 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2018-10-27 00:37:51,149 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-10-27 00:37:51,150 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-27 00:37:51,150 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-27 00:37:51,180 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2b51d919-b38a-480a-9f1b-1b9cd76da3a5/bin-2019/ukojak/witness.graphml [2018-10-27 00:37:51,180 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:37:51,181 INFO L168 Benchmark]: Toolchain (without parser) took 47504.96 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 574.6 MB). Free memory was 960.7 MB in the beginning and 882.2 MB in the end (delta: 78.6 MB). Peak memory consumption was 653.2 MB. Max. memory is 11.5 GB. [2018-10-27 00:37:51,181 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:37:51,182 INFO L168 Benchmark]: CACSL2BoogieTranslator took 162.91 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 950.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:37:51,182 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.15 ms. Allocated memory is still 1.0 GB. Free memory is still 950.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:37:51,182 INFO L168 Benchmark]: Boogie Preprocessor took 9.35 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 944.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:37:51,183 INFO L168 Benchmark]: RCFGBuilder took 428.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -191.9 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-10-27 00:37:51,183 INFO L168 Benchmark]: CodeCheck took 46835.71 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 424.7 MB). Free memory was 1.1 GB in the beginning and 882.4 MB in the end (delta: 254.1 MB). Peak memory consumption was 678.8 MB. Max. memory is 11.5 GB. [2018-10-27 00:37:51,184 INFO L168 Benchmark]: Witness Printer took 42.53 ms. Allocated memory is still 1.6 GB. Free memory was 882.4 MB in the beginning and 882.2 MB in the end (delta: 225.8 kB). Peak memory consumption was 225.8 kB. Max. memory is 11.5 GB. [2018-10-27 00:37:51,187 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 2 procedures, 16 locations, 1 error locations. SAFE Result, 46.0s OverallTime, 28 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 939524104 SDtfs, 872415420 SDslu, 1409286512 SDs, 0 SdLazy, -268419604 SolverSat, 805311580 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 33.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50831 GetRequests, 48769 SyntacticMatches, 1622 SemanticMatches, 440 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78774 ImplicationChecksByTransitivity, 35.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 8.2s InterpolantComputationTime, 2349 NumberOfCodeBlocks, 2349 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 2322 ConstructedInterpolants, 0 QuantifiedInterpolants, 711504 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 2 PerfectInterpolantSequences, 10504/18954 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: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 162.91 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 950.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.15 ms. Allocated memory is still 1.0 GB. Free memory is still 950.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.35 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 944.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 428.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -191.9 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * CodeCheck took 46835.71 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 424.7 MB). Free memory was 1.1 GB in the beginning and 882.4 MB in the end (delta: 254.1 MB). Peak memory consumption was 678.8 MB. Max. memory is 11.5 GB. * Witness Printer took 42.53 ms. Allocated memory is still 1.6 GB. Free memory was 882.4 MB in the beginning and 882.2 MB in the end (delta: 225.8 kB). Peak memory consumption was 225.8 kB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...