./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop_true-unreach-call.i.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f0086ab2-8373-4bdc-bf88-1f90c49385c6/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f0086ab2-8373-4bdc-bf88-1f90c49385c6/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f0086ab2-8373-4bdc-bf88-1f90c49385c6/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f0086ab2-8373-4bdc-bf88-1f90c49385c6/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop_true-unreach-call.i.v+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f0086ab2-8373-4bdc-bf88-1f90c49385c6/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f0086ab2-8373-4bdc-bf88-1f90c49385c6/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 5daa60820c0033439eb2fc136c4a16d466a909bc .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 13:30:57,345 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 13:30:57,346 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 13:30:57,354 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 13:30:57,354 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 13:30:57,354 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 13:30:57,355 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 13:30:57,356 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 13:30:57,357 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 13:30:57,357 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 13:30:57,358 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 13:30:57,358 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 13:30:57,358 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 13:30:57,359 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 13:30:57,359 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 13:30:57,360 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 13:30:57,360 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 13:30:57,361 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 13:30:57,362 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 13:30:57,363 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 13:30:57,364 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 13:30:57,364 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 13:30:57,365 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 13:30:57,365 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 13:30:57,365 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 13:30:57,366 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 13:30:57,366 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 13:30:57,367 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 13:30:57,367 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 13:30:57,368 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 13:30:57,368 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 13:30:57,368 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 13:30:57,368 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 13:30:57,369 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 13:30:57,369 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 13:30:57,369 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 13:30:57,370 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f0086ab2-8373-4bdc-bf88-1f90c49385c6/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-09 13:30:57,377 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 13:30:57,377 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 13:30:57,377 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 13:30:57,377 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-09 13:30:57,378 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 13:30:57,378 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 13:30:57,378 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 13:30:57,378 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 13:30:57,378 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 13:30:57,378 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 13:30:57,379 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 13:30:57,379 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 13:30:57,379 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 13:30:57,379 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 13:30:57,379 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 13:30:57,379 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 13:30:57,379 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 13:30:57,379 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 13:30:57,380 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 13:30:57,380 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 13:30:57,380 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 13:30:57,380 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 13:30:57,380 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 13:30:57,380 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 13:30:57,380 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 13:30:57,380 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 13:30:57,381 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 13:30:57,381 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 13:30:57,381 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 13:30:57,381 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_f0086ab2-8373-4bdc-bf88-1f90c49385c6/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 -> 5daa60820c0033439eb2fc136c4a16d466a909bc [2018-12-09 13:30:57,399 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 13:30:57,407 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 13:30:57,410 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 13:30:57,411 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 13:30:57,411 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 13:30:57,412 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f0086ab2-8373-4bdc-bf88-1f90c49385c6/bin-2019/ukojak/../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop_true-unreach-call.i.v+cfa-reducer.c [2018-12-09 13:30:57,451 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f0086ab2-8373-4bdc-bf88-1f90c49385c6/bin-2019/ukojak/data/f462e96d3/7e756d25795541cfb640ea05be1a6c1d/FLAGff4866061 [2018-12-09 13:30:57,911 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 13:30:57,911 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f0086ab2-8373-4bdc-bf88-1f90c49385c6/sv-benchmarks/c/loop-invgen/SpamAssassin-loop_true-unreach-call.i.v+cfa-reducer.c [2018-12-09 13:30:57,915 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f0086ab2-8373-4bdc-bf88-1f90c49385c6/bin-2019/ukojak/data/f462e96d3/7e756d25795541cfb640ea05be1a6c1d/FLAGff4866061 [2018-12-09 13:30:57,924 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f0086ab2-8373-4bdc-bf88-1f90c49385c6/bin-2019/ukojak/data/f462e96d3/7e756d25795541cfb640ea05be1a6c1d [2018-12-09 13:30:57,926 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 13:30:57,927 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 13:30:57,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 13:30:57,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 13:30:57,929 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 13:30:57,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:30:57" (1/1) ... [2018-12-09 13:30:57,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49e0d67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:30:57, skipping insertion in model container [2018-12-09 13:30:57,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:30:57" (1/1) ... [2018-12-09 13:30:57,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 13:30:57,950 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 13:30:58,047 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 13:30:58,049 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 13:30:58,067 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 13:30:58,075 INFO L195 MainTranslator]: Completed translation [2018-12-09 13:30:58,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:30:58 WrapperNode [2018-12-09 13:30:58,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 13:30:58,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 13:30:58,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 13:30:58,077 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 13:30:58,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:30:58" (1/1) ... [2018-12-09 13:30:58,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:30:58" (1/1) ... [2018-12-09 13:30:58,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 13:30:58,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 13:30:58,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 13:30:58,129 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 13:30:58,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:30:58" (1/1) ... [2018-12-09 13:30:58,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:30:58" (1/1) ... [2018-12-09 13:30:58,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:30:58" (1/1) ... [2018-12-09 13:30:58,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:30:58" (1/1) ... [2018-12-09 13:30:58,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:30:58" (1/1) ... [2018-12-09 13:30:58,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:30:58" (1/1) ... [2018-12-09 13:30:58,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:30:58" (1/1) ... [2018-12-09 13:30:58,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 13:30:58,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 13:30:58,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 13:30:58,141 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 13:30:58,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:30:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f0086ab2-8373-4bdc-bf88-1f90c49385c6/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 13:30:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 13:30:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 13:30:58,346 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 13:30:58,346 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-09 13:30:58,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:30:58 BoogieIcfgContainer [2018-12-09 13:30:58,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 13:30:58,347 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 13:30:58,347 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 13:30:58,354 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 13:30:58,354 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:30:58" (1/1) ... [2018-12-09 13:30:58,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:30:58,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:30:58,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 58 states and 79 transitions. [2018-12-09 13:30:58,388 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2018-12-09 13:30:58,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 13:30:58,390 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:30:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:30:58,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:30:58,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:30:58,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 56 states and 76 transitions. [2018-12-09 13:30:58,492 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 76 transitions. [2018-12-09 13:30:58,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 13:30:58,492 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:30:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:30:58,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:30:58,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:30:58,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 62 states and 86 transitions. [2018-12-09 13:30:58,604 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 86 transitions. [2018-12-09 13:30:58,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 13:30:58,604 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:30:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:30:58,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:30:58,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:30:58,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 65 states and 91 transitions. [2018-12-09 13:30:58,722 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 91 transitions. [2018-12-09 13:30:58,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 13:30:58,723 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:30:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:30:58,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:30:58,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:30:58,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 68 states and 94 transitions. [2018-12-09 13:30:58,866 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2018-12-09 13:30:58,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 13:30:58,868 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:30:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:30:58,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:30:59,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:30:59,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 66 states and 90 transitions. [2018-12-09 13:30:59,087 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 90 transitions. [2018-12-09 13:30:59,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 13:30:59,088 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:30:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:30:59,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:30:59,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:30:59,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 74 states and 106 transitions. [2018-12-09 13:30:59,840 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 106 transitions. [2018-12-09 13:30:59,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 13:30:59,840 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:30:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:30:59,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:00,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:00,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 72 states and 102 transitions. [2018-12-09 13:31:00,189 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 102 transitions. [2018-12-09 13:31:00,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 13:31:00,189 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:00,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:01,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:01,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 80 states and 116 transitions. [2018-12-09 13:31:01,119 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 116 transitions. [2018-12-09 13:31:01,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 13:31:01,119 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:01,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:01,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:01,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:01,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 86 states and 121 transitions. [2018-12-09 13:31:01,849 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 121 transitions. [2018-12-09 13:31:01,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 13:31:01,850 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:01,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:02,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:02,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 93 states and 127 transitions. [2018-12-09 13:31:02,839 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 127 transitions. [2018-12-09 13:31:02,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 13:31:02,839 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:03,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:04,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:04,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 96 states and 129 transitions. [2018-12-09 13:31:04,698 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 129 transitions. [2018-12-09 13:31:04,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 13:31:04,698 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:04,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:05,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:05,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 100 states and 133 transitions. [2018-12-09 13:31:05,895 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 133 transitions. [2018-12-09 13:31:05,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 13:31:05,895 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:06,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:07,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:07,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 105 states and 138 transitions. [2018-12-09 13:31:07,374 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 138 transitions. [2018-12-09 13:31:07,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 13:31:07,375 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:07,386 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:08,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:08,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 107 states and 144 transitions. [2018-12-09 13:31:08,084 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 144 transitions. [2018-12-09 13:31:08,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 13:31:08,085 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:08,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:09,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:09,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 110 states and 148 transitions. [2018-12-09 13:31:09,742 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 148 transitions. [2018-12-09 13:31:09,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 13:31:09,742 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:09,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:10,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:10,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 113 states and 151 transitions. [2018-12-09 13:31:10,447 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 151 transitions. [2018-12-09 13:31:10,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 13:31:10,448 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:10,517 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:11,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:11,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 118 states and 157 transitions. [2018-12-09 13:31:11,626 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 157 transitions. [2018-12-09 13:31:11,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 13:31:11,627 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:11,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:11,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:12,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:12,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 120 states and 159 transitions. [2018-12-09 13:31:12,738 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 159 transitions. [2018-12-09 13:31:12,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 13:31:12,739 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:12,758 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 13:31:12,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:12,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 121 states and 159 transitions. [2018-12-09 13:31:12,896 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 159 transitions. [2018-12-09 13:31:12,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 13:31:12,897 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:12,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:12,909 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:14,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:14,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 129 states and 178 transitions. [2018-12-09 13:31:14,657 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 178 transitions. [2018-12-09 13:31:14,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 13:31:14,657 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:14,668 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:14,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:14,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 129 states and 177 transitions. [2018-12-09 13:31:14,975 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 177 transitions. [2018-12-09 13:31:14,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 13:31:14,975 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:14,983 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:16,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:16,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 135 states and 191 transitions. [2018-12-09 13:31:16,301 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 191 transitions. [2018-12-09 13:31:16,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 13:31:16,301 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:16,312 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:17,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:17,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 140 states and 199 transitions. [2018-12-09 13:31:17,692 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 199 transitions. [2018-12-09 13:31:17,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 13:31:17,692 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:17,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:17,702 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:19,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:19,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 145 states and 206 transitions. [2018-12-09 13:31:19,333 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 206 transitions. [2018-12-09 13:31:19,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 13:31:19,334 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:19,478 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:24,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:24,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 148 states and 217 transitions. [2018-12-09 13:31:24,514 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 217 transitions. [2018-12-09 13:31:24,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 13:31:24,514 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:24,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:24,529 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:26,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:26,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 148 states and 216 transitions. [2018-12-09 13:31:26,504 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 216 transitions. [2018-12-09 13:31:26,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 13:31:26,504 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:26,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:26,612 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:27,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:27,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 148 states and 215 transitions. [2018-12-09 13:31:27,087 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 215 transitions. [2018-12-09 13:31:27,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 13:31:27,088 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:27,304 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:31,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:31,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 156 states and 238 transitions. [2018-12-09 13:31:31,356 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 238 transitions. [2018-12-09 13:31:31,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-09 13:31:31,357 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:31,548 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:38,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:38,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 165 states and 249 transitions. [2018-12-09 13:31:38,058 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 249 transitions. [2018-12-09 13:31:38,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-09 13:31:38,058 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:38,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:38,202 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:38,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:38,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 165 states and 247 transitions. [2018-12-09 13:31:38,788 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 247 transitions. [2018-12-09 13:31:38,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-09 13:31:38,788 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:38,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:38,800 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:41,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:41,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 171 states and 262 transitions. [2018-12-09 13:31:41,928 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 262 transitions. [2018-12-09 13:31:41,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-09 13:31:41,929 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:41,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:41,940 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:31:43,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:43,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 176 states and 270 transitions. [2018-12-09 13:31:43,492 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 270 transitions. [2018-12-09 13:31:43,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-09 13:31:43,492 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 13:31:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:31:43,502 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 13:31:49,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 13:31:49,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 33 states and 39 transitions. [2018-12-09 13:31:49,679 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2018-12-09 13:31:49,679 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 13:31:49,679 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 34 iterations. [2018-12-09 13:31:49,685 INFO L779 CodeCheckObserver]: All specifications hold 16 specifications checked. All of them hold [2018-12-09 13:31:49,890 INFO L583 CodeCheckObserver]: Invariant with dag size 24 [2018-12-09 13:31:49,897 INFO L583 CodeCheckObserver]: Invariant with dag size 15 [2018-12-09 13:31:49,897 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 13:31:49,897 INFO L583 CodeCheckObserver]: Invariant with dag size 17 [2018-12-09 13:31:49,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 01:31:49 ImpRootNode [2018-12-09 13:31:49,898 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 13:31:49,898 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 13:31:49,898 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 13:31:49,898 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 13:31:49,899 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:30:58" (3/4) ... [2018-12-09 13:31:49,901 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 13:31:49,907 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-09 13:31:49,907 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 13:31:49,943 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f0086ab2-8373-4bdc-bf88-1f90c49385c6/bin-2019/ukojak/witness.graphml [2018-12-09 13:31:49,943 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 13:31:49,944 INFO L168 Benchmark]: Toolchain (without parser) took 52018.05 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 400.6 MB). Free memory was 956.0 MB in the beginning and 1.3 GB in the end (delta: -308.0 MB). Peak memory consumption was 92.5 MB. Max. memory is 11.5 GB. [2018-12-09 13:31:49,945 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 13:31:49,945 INFO L168 Benchmark]: CACSL2BoogieTranslator took 149.26 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 939.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-09 13:31:49,945 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2018-12-09 13:31:49,946 INFO L168 Benchmark]: Boogie Preprocessor took 12.11 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 13:31:49,946 INFO L168 Benchmark]: RCFGBuilder took 205.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-09 13:31:49,946 INFO L168 Benchmark]: CodeCheck took 51551.05 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 289.4 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -182.6 MB). Peak memory consumption was 106.8 MB. Max. memory is 11.5 GB. [2018-12-09 13:31:49,946 INFO L168 Benchmark]: Witness Printer took 45.50 ms. Allocated memory is still 1.4 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 13:31:49,947 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, 60 locations, 16 error locations. SAFE Result, 51.3s OverallTime, 34 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: -1245184 SDtfs, -760961376 SDslu, 1225048860 SDs, 0 SdLazy, 2005319554 SolverSat, -1295392406 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5817 GetRequests, 4977 SyntacticMatches, 264 SemanticMatches, 576 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133036 ImplicationChecksByTransitivity, 49.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 636 NumberOfCodeBlocks, 636 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 603 ConstructedInterpolants, 0 QuantifiedInterpolants, 49449 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 33 InterpolantComputations, 18 PerfectInterpolantSequences, 34/104 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: 107]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 83]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 136]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 212]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 42]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 224]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 71]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 200]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 95]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 160]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 240]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 172]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 54]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 252]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 148]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 188]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: ((((main__j + 5 <= main__bufsize && main__i + 2 <= main__len) && 0 <= main__i) && main__limit + 4 <= main__bufsize) && 0 <= main__j) || ((((main__j + 5 <= main__bufsize && main__len < main__i + 2) && 0 <= main__i) && main__i + 1 <= main__len) && 0 <= main__j) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (0 <= main__i && main__limit + 4 <= main__bufsize) || (0 <= main__i && main__len < main__i + 1) - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: ((0 <= main__i && main__limit + 4 <= main__bufsize) && 0 <= main__j) || (0 <= main__i && main__len < main__i + 1) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 149.26 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 939.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.11 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 205.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * CodeCheck took 51551.05 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 289.4 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -182.6 MB). Peak memory consumption was 106.8 MB. Max. memory is 11.5 GB. * Witness Printer took 45.50 ms. Allocated memory is still 1.4 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...