./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop_true-unreach-call_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_44d6b3c4-a853-4065-883a-5d198106d10d/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_44d6b3c4-a853-4065-883a-5d198106d10d/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_44d6b3c4-a853-4065-883a-5d198106d10d/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_44d6b3c4-a853-4065-883a-5d198106d10d/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop_true-unreach-call_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_44d6b3c4-a853-4065-883a-5d198106d10d/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_44d6b3c4-a853-4065-883a-5d198106d10d/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 751def0588f132c393a8666a5acb62e8205c40a1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 13:05:24,471 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:05:24,472 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:05:24,480 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:05:24,480 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:05:24,481 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:05:24,482 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:05:24,483 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:05:24,484 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:05:24,485 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:05:24,486 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:05:24,486 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:05:24,487 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:05:24,487 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:05:24,488 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:05:24,489 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:05:24,490 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:05:24,491 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:05:24,493 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:05:24,494 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:05:24,495 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:05:24,497 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:05:24,498 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:05:24,499 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:05:24,499 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:05:24,500 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:05:24,501 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:05:24,502 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:05:24,502 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:05:24,503 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:05:24,503 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:05:24,504 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:05:24,504 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:05:24,504 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:05:24,505 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:05:24,506 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:05:24,506 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_44d6b3c4-a853-4065-883a-5d198106d10d/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 13:05:24,518 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:05:24,518 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:05:24,518 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:05:24,519 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 13:05:24,519 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 13:05:24,519 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 13:05:24,519 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:05:24,519 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:05:24,520 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:05:24,520 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:05:24,520 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:05:24,520 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:05:24,520 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:05:24,520 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:05:24,520 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:05:24,521 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:05:24,521 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:05:24,521 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:05:24,521 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 13:05:24,521 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 13:05:24,521 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:05:24,522 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:05:24,522 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 13:05:24,522 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:05:24,522 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:05:24,522 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:05:24,522 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 13:05:24,522 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:05:24,523 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:05:24,523 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_44d6b3c4-a853-4065-883a-5d198106d10d/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 -> 751def0588f132c393a8666a5acb62e8205c40a1 [2018-11-18 13:05:24,548 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:05:24,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:05:24,559 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:05:24,560 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:05:24,560 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:05:24,561 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_44d6b3c4-a853-4065-883a-5d198106d10d/bin-2019/ukojak/../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop_true-unreach-call_false-termination.i [2018-11-18 13:05:24,601 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_44d6b3c4-a853-4065-883a-5d198106d10d/bin-2019/ukojak/data/21c75b8da/6a22a7d468cc4169baa43a8359b5d492/FLAG6bc601daf [2018-11-18 13:05:24,937 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:05:24,937 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_44d6b3c4-a853-4065-883a-5d198106d10d/sv-benchmarks/c/loop-invgen/SpamAssassin-loop_true-unreach-call_false-termination.i [2018-11-18 13:05:24,943 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_44d6b3c4-a853-4065-883a-5d198106d10d/bin-2019/ukojak/data/21c75b8da/6a22a7d468cc4169baa43a8359b5d492/FLAG6bc601daf [2018-11-18 13:05:24,957 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_44d6b3c4-a853-4065-883a-5d198106d10d/bin-2019/ukojak/data/21c75b8da/6a22a7d468cc4169baa43a8359b5d492 [2018-11-18 13:05:24,961 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:05:24,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:05:24,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:05:24,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:05:24,967 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:05:24,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:05:24" (1/1) ... [2018-11-18 13:05:24,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78bb2e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:05:24, skipping insertion in model container [2018-11-18 13:05:24,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:05:24" (1/1) ... [2018-11-18 13:05:24,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:05:25,000 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:05:25,123 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:05:25,125 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:05:25,139 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:05:25,150 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:05:25,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:05:25 WrapperNode [2018-11-18 13:05:25,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:05:25,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:05:25,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:05:25,151 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:05:25,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:05:25" (1/1) ... [2018-11-18 13:05:25,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:05:25" (1/1) ... [2018-11-18 13:05:25,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:05:25,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:05:25,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:05:25,176 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:05:25,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:05:25" (1/1) ... [2018-11-18 13:05:25,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:05:25" (1/1) ... [2018-11-18 13:05:25,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:05:25" (1/1) ... [2018-11-18 13:05:25,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:05:25" (1/1) ... [2018-11-18 13:05:25,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:05:25" (1/1) ... [2018-11-18 13:05:25,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:05:25" (1/1) ... [2018-11-18 13:05:25,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:05:25" (1/1) ... [2018-11-18 13:05:25,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:05:25,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:05:25,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:05:25,194 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:05:25,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:05:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_44d6b3c4-a853-4065-883a-5d198106d10d/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 [2018-11-18 13:05:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:05:25,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:05:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 13:05:25,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 13:05:25,457 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:05:25,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:05:25 BoogieIcfgContainer [2018-11-18 13:05:25,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:05:25,458 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 13:05:25,459 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 13:05:25,467 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 13:05:25,468 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:05:25" (1/1) ... [2018-11-18 13:05:25,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:05:25,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:25,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 38 states and 60 transitions. [2018-11-18 13:05:25,503 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2018-11-18 13:05:25,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 13:05:25,504 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:25,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:25,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:05:25,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:25,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 43 states and 81 transitions. [2018-11-18 13:05:25,766 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 81 transitions. [2018-11-18 13:05:25,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 13:05:25,771 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:25,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:05:25,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:25,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 43 states and 80 transitions. [2018-11-18 13:05:25,846 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 80 transitions. [2018-11-18 13:05:25,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 13:05:25,847 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:25,977 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:05:26,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:26,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 50 states and 92 transitions. [2018-11-18 13:05:26,384 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 92 transitions. [2018-11-18 13:05:26,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 13:05:26,384 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:26,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:05:26,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:26,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 52 states and 94 transitions. [2018-11-18 13:05:26,505 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 94 transitions. [2018-11-18 13:05:26,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 13:05:26,506 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:26,601 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 13:05:27,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:27,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 60 states and 113 transitions. [2018-11-18 13:05:27,028 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 113 transitions. [2018-11-18 13:05:27,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 13:05:27,028 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:27,054 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 13:05:27,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:27,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 59 states and 111 transitions. [2018-11-18 13:05:27,116 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 111 transitions. [2018-11-18 13:05:27,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 13:05:27,117 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:27,151 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 13:05:27,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:27,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 59 states and 110 transitions. [2018-11-18 13:05:27,180 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 110 transitions. [2018-11-18 13:05:27,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 13:05:27,181 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:27,288 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 13:05:27,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:27,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 66 states and 126 transitions. [2018-11-18 13:05:27,741 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 126 transitions. [2018-11-18 13:05:27,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-18 13:05:27,742 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:27,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:27,761 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 13:05:27,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:27,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 66 states and 125 transitions. [2018-11-18 13:05:27,782 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 125 transitions. [2018-11-18 13:05:27,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-18 13:05:27,783 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:27,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:27,801 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 13:05:27,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:27,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 66 states and 124 transitions. [2018-11-18 13:05:27,872 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 124 transitions. [2018-11-18 13:05:27,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-18 13:05:27,873 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:27,928 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-18 13:05:28,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:28,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 70 states and 130 transitions. [2018-11-18 13:05:28,115 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 130 transitions. [2018-11-18 13:05:28,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-18 13:05:28,116 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:28,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:28,134 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-18 13:05:28,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:28,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 73 states and 136 transitions. [2018-11-18 13:05:28,178 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 136 transitions. [2018-11-18 13:05:28,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-18 13:05:28,179 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:28,223 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-11-18 13:05:28,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:28,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 77 states and 142 transitions. [2018-11-18 13:05:28,369 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 142 transitions. [2018-11-18 13:05:28,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-18 13:05:28,369 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:28,384 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-11-18 13:05:28,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:28,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 81 states and 149 transitions. [2018-11-18 13:05:28,427 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 149 transitions. [2018-11-18 13:05:28,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-18 13:05:28,427 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:28,490 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 10 proven. 17 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-11-18 13:05:28,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:28,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 83 states and 156 transitions. [2018-11-18 13:05:28,714 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 156 transitions. [2018-11-18 13:05:28,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 13:05:28,715 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:28,748 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 11 proven. 16 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-11-18 13:05:29,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:29,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 86 states and 160 transitions. [2018-11-18 13:05:29,179 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 160 transitions. [2018-11-18 13:05:29,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 13:05:29,180 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:29,194 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 12 proven. 19 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-18 13:05:29,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:29,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 88 states and 164 transitions. [2018-11-18 13:05:29,289 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 164 transitions. [2018-11-18 13:05:29,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-18 13:05:29,290 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:29,309 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-11-18 13:05:29,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:29,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 93 states and 173 transitions. [2018-11-18 13:05:29,508 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 173 transitions. [2018-11-18 13:05:29,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-18 13:05:29,509 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:29,525 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 13 proven. 19 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2018-11-18 13:05:29,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:29,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 97 states and 181 transitions. [2018-11-18 13:05:29,793 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 181 transitions. [2018-11-18 13:05:29,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-18 13:05:29,793 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:29,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:29,811 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-11-18 13:05:29,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:29,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 99 states and 182 transitions. [2018-11-18 13:05:29,871 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 182 transitions. [2018-11-18 13:05:29,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-18 13:05:29,872 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:29,923 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 15 proven. 22 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-11-18 13:05:30,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:30,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 104 states and 192 transitions. [2018-11-18 13:05:30,286 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 192 transitions. [2018-11-18 13:05:30,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-18 13:05:30,287 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:30,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:30,304 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 15 proven. 28 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-11-18 13:05:30,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:30,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 112 states and 214 transitions. [2018-11-18 13:05:30,965 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 214 transitions. [2018-11-18 13:05:30,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-18 13:05:30,966 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:31,030 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 17 proven. 25 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-11-18 13:05:31,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:31,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 114 states and 220 transitions. [2018-11-18 13:05:31,461 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 220 transitions. [2018-11-18 13:05:31,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 13:05:31,462 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:31,476 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 24 proven. 25 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-11-18 13:05:31,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:31,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 114 states and 219 transitions. [2018-11-18 13:05:31,506 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 219 transitions. [2018-11-18 13:05:31,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 13:05:31,507 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:31,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:31,524 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 24 proven. 25 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-11-18 13:05:32,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:32,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 120 states and 235 transitions. [2018-11-18 13:05:32,102 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 235 transitions. [2018-11-18 13:05:32,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-18 13:05:32,103 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:32,158 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 19 proven. 28 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2018-11-18 13:05:32,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:32,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 123 states and 241 transitions. [2018-11-18 13:05:32,293 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 241 transitions. [2018-11-18 13:05:32,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-18 13:05:32,294 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:32,309 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 19 proven. 38 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2018-11-18 13:05:32,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:32,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 127 states and 247 transitions. [2018-11-18 13:05:32,519 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 247 transitions. [2018-11-18 13:05:32,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-18 13:05:32,519 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:32,535 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 19 proven. 35 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2018-11-18 13:05:32,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:32,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 130 states and 256 transitions. [2018-11-18 13:05:32,575 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 256 transitions. [2018-11-18 13:05:32,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-18 13:05:32,575 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:32,587 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 44 proven. 32 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2018-11-18 13:05:32,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:32,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 131 states and 259 transitions. [2018-11-18 13:05:32,864 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 259 transitions. [2018-11-18 13:05:32,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-11-18 13:05:32,865 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:32,881 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 31 proven. 32 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2018-11-18 13:05:33,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:33,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 135 states and 265 transitions. [2018-11-18 13:05:33,113 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 265 transitions. [2018-11-18 13:05:33,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-11-18 13:05:33,114 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:33,130 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 27 proven. 32 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2018-11-18 13:05:33,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:33,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 138 states and 273 transitions. [2018-11-18 13:05:33,168 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 273 transitions. [2018-11-18 13:05:33,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-11-18 13:05:33,168 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:33,182 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 51 proven. 38 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2018-11-18 13:05:33,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:33,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 138 states and 272 transitions. [2018-11-18 13:05:33,267 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 272 transitions. [2018-11-18 13:05:33,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-11-18 13:05:33,268 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:33,302 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 26 proven. 34 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2018-11-18 13:05:33,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:33,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 138 states and 271 transitions. [2018-11-18 13:05:33,699 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 271 transitions. [2018-11-18 13:05:33,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-11-18 13:05:33,700 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:33,795 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 23 proven. 52 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2018-11-18 13:05:34,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:34,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 148 states and 288 transitions. [2018-11-18 13:05:34,198 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 288 transitions. [2018-11-18 13:05:34,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-18 13:05:34,199 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:34,216 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 45 proven. 50 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2018-11-18 13:05:34,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:34,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 152 states and 301 transitions. [2018-11-18 13:05:34,818 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 301 transitions. [2018-11-18 13:05:34,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-11-18 13:05:34,819 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:34,915 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 27 proven. 43 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2018-11-18 13:05:35,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:35,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 160 states and 327 transitions. [2018-11-18 13:05:35,792 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 327 transitions. [2018-11-18 13:05:35,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-11-18 13:05:35,792 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:35,811 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 27 proven. 41 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2018-11-18 13:05:36,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:36,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 64 states and 100 transitions. [2018-11-18 13:05:36,859 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 100 transitions. [2018-11-18 13:05:36,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-11-18 13:05:36,859 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:05:36,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:05:36,871 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 61 proven. 50 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2018-11-18 13:05:37,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:05:37,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 45 states and 70 transitions. [2018-11-18 13:05:37,041 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 70 transitions. [2018-11-18 13:05:37,041 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:05:37,041 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 39 iterations. [2018-11-18 13:05:37,050 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-18 13:05:37,393 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 13:05:37,395 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 13:05:37,395 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 13:05:37,395 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 13:05:37,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 01:05:37 ImpRootNode [2018-11-18 13:05:37,396 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 13:05:37,396 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:05:37,396 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:05:37,396 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:05:37,397 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:05:25" (3/4) ... [2018-11-18 13:05:37,399 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:05:37,403 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-18 13:05:37,406 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-18 13:05:37,407 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 13:05:37,407 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 13:05:37,449 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_44d6b3c4-a853-4065-883a-5d198106d10d/bin-2019/ukojak/witness.graphml [2018-11-18 13:05:37,450 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:05:37,450 INFO L168 Benchmark]: Toolchain (without parser) took 12489.22 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 461.4 MB). Free memory was 960.2 MB in the beginning and 885.2 MB in the end (delta: 75.0 MB). Peak memory consumption was 536.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:05:37,451 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:05:37,451 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.23 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:05:37,452 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.25 ms. Allocated memory is still 1.0 GB. Free memory was 949.4 MB in the beginning and 946.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:05:37,452 INFO L168 Benchmark]: Boogie Preprocessor took 17.41 ms. Allocated memory is still 1.0 GB. Free memory is still 946.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:05:37,452 INFO L168 Benchmark]: RCFGBuilder took 264.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 946.7 MB in the beginning and 1.1 GB in the end (delta: -193.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:05:37,452 INFO L168 Benchmark]: CodeCheck took 11937.29 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 300.4 MB). Free memory was 1.1 GB in the beginning and 897.3 MB in the end (delta: 243.1 MB). Peak memory consumption was 543.5 MB. Max. memory is 11.5 GB. [2018-11-18 13:05:37,453 INFO L168 Benchmark]: Witness Printer took 53.60 ms. Allocated memory is still 1.5 GB. Free memory was 897.3 MB in the beginning and 885.2 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. [2018-11-18 13:05:37,454 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, 40 locations, 1 error locations. SAFE Result, 11.5s OverallTime, 39 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 1866621064 SDslu, -1964100056 SDs, 0 SdLazy, -72723372 SolverSat, 1743741468 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19408 GetRequests, 18737 SyntacticMatches, 381 SemanticMatches, 290 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39544 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1928 NumberOfCodeBlocks, 1928 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 1890 ConstructedInterpolants, 0 QuantifiedInterpolants, 249050 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 38 InterpolantComputations, 4 PerfectInterpolantSequences, 4488/5270 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: 5]: 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 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.23 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.25 ms. Allocated memory is still 1.0 GB. Free memory was 949.4 MB in the beginning and 946.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.41 ms. Allocated memory is still 1.0 GB. Free memory is still 946.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 264.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 946.7 MB in the beginning and 1.1 GB in the end (delta: -193.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * CodeCheck took 11937.29 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 300.4 MB). Free memory was 1.1 GB in the beginning and 897.3 MB in the end (delta: 243.1 MB). Peak memory consumption was 543.5 MB. Max. memory is 11.5 GB. * Witness Printer took 53.60 ms. Allocated memory is still 1.5 GB. Free memory was 897.3 MB in the beginning and 885.2 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...