./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers2_false-valid-deref.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_507a5171-5a9f-4e94-af76-c0a3debf1d5d/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_507a5171-5a9f-4e94-af76-c0a3debf1d5d/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_507a5171-5a9f-4e94-af76-c0a3debf1d5d/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_507a5171-5a9f-4e94-af76-c0a3debf1d5d/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers2_false-valid-deref.c -s /tmp/vcloud-vcloud-master/worker/working_dir_507a5171-5a9f-4e94-af76-c0a3debf1d5d/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_507a5171-5a9f-4e94-af76-c0a3debf1d5d/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e872a0dffbf376eb2d8b1e3516401a8dafe115a6 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 18:41:21,447 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 18:41:21,448 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 18:41:21,455 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 18:41:21,455 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 18:41:21,456 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 18:41:21,457 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 18:41:21,458 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 18:41:21,459 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 18:41:21,460 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 18:41:21,461 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 18:41:21,461 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 18:41:21,462 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 18:41:21,462 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 18:41:21,463 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 18:41:21,463 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 18:41:21,464 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 18:41:21,465 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 18:41:21,467 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 18:41:21,467 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 18:41:21,468 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 18:41:21,469 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 18:41:21,470 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 18:41:21,470 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 18:41:21,470 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 18:41:21,471 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 18:41:21,471 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 18:41:21,472 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 18:41:21,473 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 18:41:21,474 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 18:41:21,474 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 18:41:21,474 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 18:41:21,475 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 18:41:21,475 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 18:41:21,476 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 18:41:21,476 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 18:41:21,476 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_507a5171-5a9f-4e94-af76-c0a3debf1d5d/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-11-18 18:41:21,487 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 18:41:21,487 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 18:41:21,488 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 18:41:21,488 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 18:41:21,488 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 18:41:21,488 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 18:41:21,488 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 18:41:21,489 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 18:41:21,489 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 18:41:21,489 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 18:41:21,489 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 18:41:21,489 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 18:41:21,489 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 18:41:21,489 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 18:41:21,489 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 18:41:21,490 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 18:41:21,490 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 18:41:21,490 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 18:41:21,490 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 18:41:21,490 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 18:41:21,492 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 18:41:21,492 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 18:41:21,492 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 18:41:21,493 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 18:41:21,493 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 18:41:21,493 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_507a5171-5a9f-4e94-af76-c0a3debf1d5d/bin-2019/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e872a0dffbf376eb2d8b1e3516401a8dafe115a6 [2018-11-18 18:41:21,520 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 18:41:21,531 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 18:41:21,534 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 18:41:21,535 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 18:41:21,535 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 18:41:21,536 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_507a5171-5a9f-4e94-af76-c0a3debf1d5d/bin-2019/ukojak/../../sv-benchmarks/c/memsafety-ext3/getNumbers2_false-valid-deref.c [2018-11-18 18:41:21,590 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_507a5171-5a9f-4e94-af76-c0a3debf1d5d/bin-2019/ukojak/data/090d370fe/82e530a3e883471fb22d89b52d4ae697/FLAG2dc16484c [2018-11-18 18:41:21,953 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 18:41:21,954 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_507a5171-5a9f-4e94-af76-c0a3debf1d5d/sv-benchmarks/c/memsafety-ext3/getNumbers2_false-valid-deref.c [2018-11-18 18:41:21,959 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_507a5171-5a9f-4e94-af76-c0a3debf1d5d/bin-2019/ukojak/data/090d370fe/82e530a3e883471fb22d89b52d4ae697/FLAG2dc16484c [2018-11-18 18:41:21,969 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_507a5171-5a9f-4e94-af76-c0a3debf1d5d/bin-2019/ukojak/data/090d370fe/82e530a3e883471fb22d89b52d4ae697 [2018-11-18 18:41:21,972 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 18:41:21,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 18:41:21,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 18:41:21,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 18:41:21,977 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 18:41:21,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:41:21" (1/1) ... [2018-11-18 18:41:21,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79fac225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:21, skipping insertion in model container [2018-11-18 18:41:21,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:41:21" (1/1) ... [2018-11-18 18:41:21,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 18:41:22,009 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 18:41:22,138 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 18:41:22,152 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 18:41:22,169 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 18:41:22,186 INFO L195 MainTranslator]: Completed translation [2018-11-18 18:41:22,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:22 WrapperNode [2018-11-18 18:41:22,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 18:41:22,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 18:41:22,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 18:41:22,188 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 18:41:22,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:22" (1/1) ... [2018-11-18 18:41:22,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:22" (1/1) ... [2018-11-18 18:41:22,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 18:41:22,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 18:41:22,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 18:41:22,259 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 18:41:22,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:22" (1/1) ... [2018-11-18 18:41:22,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:22" (1/1) ... [2018-11-18 18:41:22,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:22" (1/1) ... [2018-11-18 18:41:22,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:22" (1/1) ... [2018-11-18 18:41:22,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:22" (1/1) ... [2018-11-18 18:41:22,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:22" (1/1) ... [2018-11-18 18:41:22,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:22" (1/1) ... [2018-11-18 18:41:22,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 18:41:22,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 18:41:22,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 18:41:22,278 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 18:41:22,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_507a5171-5a9f-4e94-af76-c0a3debf1d5d/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 18:41:22,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 18:41:22,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 18:41:22,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 18:41:22,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 18:41:22,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 18:41:22,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 18:41:22,582 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 18:41:22,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:41:22 BoogieIcfgContainer [2018-11-18 18:41:22,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 18:41:22,583 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 18:41:22,583 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 18:41:22,590 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 18:41:22,590 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:41:22" (1/1) ... [2018-11-18 18:41:22,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:41:22,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:22,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 22 states and 25 transitions. [2018-11-18 18:41:22,622 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2018-11-18 18:41:22,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-18 18:41:22,625 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:22,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:22,744 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 18:41:22,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:22,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 21 states and 23 transitions. [2018-11-18 18:41:22,785 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-18 18:41:22,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-18 18:41:22,786 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:22,837 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 18:41:22,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:22,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2018-11-18 18:41:22,972 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-11-18 18:41:22,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 18:41:22,972 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:23,098 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:41:23,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:23,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 23 states and 25 transitions. [2018-11-18 18:41:23,508 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-11-18 18:41:23,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 18:41:23,509 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:23,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:41:23,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:23,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 25 states and 26 transitions. [2018-11-18 18:41:23,683 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-11-18 18:41:23,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 18:41:23,684 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:23,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:23,729 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:41:23,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:23,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 28 states and 29 transitions. [2018-11-18 18:41:23,944 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2018-11-18 18:41:23,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 18:41:23,944 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:23,981 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:41:24,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:24,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 31 states and 32 transitions. [2018-11-18 18:41:24,150 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2018-11-18 18:41:24,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 18:41:24,150 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:24,191 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:41:24,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:24,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 34 states and 35 transitions. [2018-11-18 18:41:24,389 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2018-11-18 18:41:24,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 18:41:24,390 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:24,443 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:41:24,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:24,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 37 states and 38 transitions. [2018-11-18 18:41:24,699 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2018-11-18 18:41:24,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 18:41:24,699 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:24,750 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:41:24,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:24,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 40 states and 41 transitions. [2018-11-18 18:41:24,958 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2018-11-18 18:41:24,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-18 18:41:24,958 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:25,016 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:41:25,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:25,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 43 states and 44 transitions. [2018-11-18 18:41:25,260 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2018-11-18 18:41:25,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 18:41:25,261 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:25,357 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:41:25,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:25,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 46 states and 47 transitions. [2018-11-18 18:41:25,629 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2018-11-18 18:41:25,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 18:41:25,630 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:25,698 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:41:25,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:25,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2018-11-18 18:41:25,880 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2018-11-18 18:41:25,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 18:41:25,881 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:25,965 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 18:41:26,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:26,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 52 states and 54 transitions. [2018-11-18 18:41:26,040 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2018-11-18 18:41:26,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 18:41:26,043 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:26,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:26,204 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 18:41:26,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:26,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 55 states and 58 transitions. [2018-11-18 18:41:26,618 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2018-11-18 18:41:26,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-18 18:41:26,619 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:26,742 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 18:41:27,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:27,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 56 states and 60 transitions. [2018-11-18 18:41:27,073 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2018-11-18 18:41:27,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-18 18:41:27,073 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:27,173 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 18:41:27,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:27,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 60 states and 66 transitions. [2018-11-18 18:41:27,996 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2018-11-18 18:41:27,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 18:41:27,996 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:28,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:28,077 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 18:41:28,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:28,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 60 states and 65 transitions. [2018-11-18 18:41:28,238 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2018-11-18 18:41:28,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 18:41:28,239 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:28,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:28,466 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 18:41:28,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:28,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 64 states and 71 transitions. [2018-11-18 18:41:28,888 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2018-11-18 18:41:28,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 18:41:28,889 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:28,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:28,962 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 18:41:29,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:29,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 64 states and 70 transitions. [2018-11-18 18:41:29,200 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2018-11-18 18:41:29,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 18:41:29,201 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:29,370 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 18:41:29,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:29,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 68 states and 76 transitions. [2018-11-18 18:41:29,912 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2018-11-18 18:41:29,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-18 18:41:29,912 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:29,971 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2018-11-18 18:41:30,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:30,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 68 states and 75 transitions. [2018-11-18 18:41:30,177 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions. [2018-11-18 18:41:30,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-18 18:41:30,178 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:30,487 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 18:41:31,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:31,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 72 states and 81 transitions. [2018-11-18 18:41:31,082 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 81 transitions. [2018-11-18 18:41:31,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 18:41:31,083 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:31,139 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2018-11-18 18:41:31,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:31,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 72 states and 80 transitions. [2018-11-18 18:41:31,401 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 80 transitions. [2018-11-18 18:41:31,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 18:41:31,401 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:31,633 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 18:41:32,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:32,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 76 states and 86 transitions. [2018-11-18 18:41:32,218 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2018-11-18 18:41:32,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-18 18:41:32,218 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:32,263 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2018-11-18 18:41:32,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:32,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 76 states and 85 transitions. [2018-11-18 18:41:32,471 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2018-11-18 18:41:32,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-18 18:41:32,471 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:32,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:32,778 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 29 proven. 21 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-11-18 18:41:33,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:33,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 80 states and 91 transitions. [2018-11-18 18:41:33,421 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2018-11-18 18:41:33,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-18 18:41:33,422 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:33,477 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2018-11-18 18:41:33,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:33,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 80 states and 90 transitions. [2018-11-18 18:41:33,692 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 90 transitions. [2018-11-18 18:41:33,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-18 18:41:33,692 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:33,980 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 18:41:34,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:34,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 84 states and 96 transitions. [2018-11-18 18:41:34,779 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 96 transitions. [2018-11-18 18:41:34,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-18 18:41:34,780 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:34,858 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2018-11-18 18:41:35,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:35,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 84 states and 95 transitions. [2018-11-18 18:41:35,127 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 95 transitions. [2018-11-18 18:41:35,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-18 18:41:35,128 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:35,473 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 29 proven. 36 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-11-18 18:41:36,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:36,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 88 states and 101 transitions. [2018-11-18 18:41:36,295 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 101 transitions. [2018-11-18 18:41:36,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-18 18:41:36,295 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:36,362 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2018-11-18 18:41:36,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:36,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 88 states and 100 transitions. [2018-11-18 18:41:36,595 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 100 transitions. [2018-11-18 18:41:36,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-18 18:41:36,595 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:36,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:37,006 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 18:41:37,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:37,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 92 states and 106 transitions. [2018-11-18 18:41:37,840 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 106 transitions. [2018-11-18 18:41:37,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-18 18:41:37,841 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:37,912 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2018-11-18 18:41:38,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:38,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 92 states and 105 transitions. [2018-11-18 18:41:38,262 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 105 transitions. [2018-11-18 18:41:38,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-18 18:41:38,263 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:38,609 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2018-11-18 18:41:39,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:39,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 96 states and 112 transitions. [2018-11-18 18:41:39,752 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 112 transitions. [2018-11-18 18:41:39,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-18 18:41:39,752 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:40,148 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 18:41:40,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:40,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 98 states and 115 transitions. [2018-11-18 18:41:40,760 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 115 transitions. [2018-11-18 18:41:40,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-18 18:41:40,760 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:40,842 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2018-11-18 18:41:41,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:41,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 99 states and 116 transitions. [2018-11-18 18:41:41,377 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 116 transitions. [2018-11-18 18:41:41,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-18 18:41:41,377 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:41,807 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 18:41:42,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:42,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 103 states and 123 transitions. [2018-11-18 18:41:42,863 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 123 transitions. [2018-11-18 18:41:42,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-11-18 18:41:42,863 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:42,909 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2018-11-18 18:41:43,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:43,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 103 states and 122 transitions. [2018-11-18 18:41:43,198 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 122 transitions. [2018-11-18 18:41:43,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-11-18 18:41:43,198 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:43,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:43,302 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2018-11-18 18:41:43,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:43,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 104 states and 122 transitions. [2018-11-18 18:41:43,589 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 122 transitions. [2018-11-18 18:41:43,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 18:41:43,590 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:43,690 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 18:41:44,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:44,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 106 states and 126 transitions. [2018-11-18 18:41:44,035 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 126 transitions. [2018-11-18 18:41:44,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 18:41:44,035 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:44,110 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2018-11-18 18:41:44,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:44,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 106 states and 125 transitions. [2018-11-18 18:41:44,403 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 125 transitions. [2018-11-18 18:41:44,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 18:41:44,403 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:44,698 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2018-11-18 18:41:46,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:46,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 110 states and 133 transitions. [2018-11-18 18:41:46,086 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 133 transitions. [2018-11-18 18:41:46,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-18 18:41:46,087 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:46,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:46,139 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2018-11-18 18:41:46,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:46,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 110 states and 132 transitions. [2018-11-18 18:41:46,449 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 132 transitions. [2018-11-18 18:41:46,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-18 18:41:46,449 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:46,582 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2018-11-18 18:41:46,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:46,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 111 states and 132 transitions. [2018-11-18 18:41:46,840 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 132 transitions. [2018-11-18 18:41:46,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-11-18 18:41:46,840 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:46,946 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 18:41:47,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:47,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 115 states and 139 transitions. [2018-11-18 18:41:47,654 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 139 transitions. [2018-11-18 18:41:47,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-11-18 18:41:47,654 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:47,730 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2018-11-18 18:41:48,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:48,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 115 states and 138 transitions. [2018-11-18 18:41:48,067 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 138 transitions. [2018-11-18 18:41:48,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-11-18 18:41:48,068 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:49,360 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 105 proven. 7 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 18:41:51,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:51,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 117 states and 139 transitions. [2018-11-18 18:41:51,080 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 139 transitions. [2018-11-18 18:41:51,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-18 18:41:51,080 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:51,195 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 18:41:51,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:51,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 121 states and 146 transitions. [2018-11-18 18:41:51,933 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 146 transitions. [2018-11-18 18:41:51,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-18 18:41:51,934 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:51,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:51,985 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2018-11-18 18:41:52,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:52,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 121 states and 145 transitions. [2018-11-18 18:41:52,318 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 145 transitions. [2018-11-18 18:41:52,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-18 18:41:52,319 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:53,305 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 18:41:54,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:54,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 123 states and 146 transitions. [2018-11-18 18:41:54,021 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 146 transitions. [2018-11-18 18:41:54,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-11-18 18:41:54,021 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:54,152 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 18:41:54,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:54,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 127 states and 150 transitions. [2018-11-18 18:41:54,869 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 150 transitions. [2018-11-18 18:41:54,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-11-18 18:41:54,869 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:54,921 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2018-11-18 18:41:55,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:55,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 126 states and 148 transitions. [2018-11-18 18:41:55,323 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 148 transitions. [2018-11-18 18:41:55,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-11-18 18:41:55,323 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:41:56,142 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 171 proven. 9 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 18:41:57,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:41:57,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 83 states and 82 transitions. [2018-11-18 18:41:57,165 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 82 transitions. [2018-11-18 18:41:57,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-11-18 18:41:57,166 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:41:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 18:41:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 18:41:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 18:41:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 18:41:57,874 WARN L493 CodeCheckObserver]: This program is UNSAFE, Check terminated with 54 iterations. [2018-11-18 18:41:57,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 06:41:57 ImpRootNode [2018-11-18 18:41:57,930 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 18:41:57,931 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 18:41:57,931 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 18:41:57,931 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 18:41:57,932 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:41:22" (3/4) ... [2018-11-18 18:41:57,935 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 18:41:58,013 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_507a5171-5a9f-4e94-af76-c0a3debf1d5d/bin-2019/ukojak/witness.graphml [2018-11-18 18:41:58,014 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 18:41:58,014 INFO L168 Benchmark]: Toolchain (without parser) took 36042.36 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 521.1 MB). Free memory was 960.7 MB in the beginning and 1.1 GB in the end (delta: -126.7 MB). Peak memory consumption was 394.4 MB. Max. memory is 11.5 GB. [2018-11-18 18:41:58,016 INFO L168 Benchmark]: CDTParser took 0.17 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 18:41:58,016 INFO L168 Benchmark]: CACSL2BoogieTranslator took 214.02 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 950.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 18:41:58,016 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -183.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. [2018-11-18 18:41:58,018 INFO L168 Benchmark]: Boogie Preprocessor took 18.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 18:41:58,019 INFO L168 Benchmark]: RCFGBuilder took 304.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2018-11-18 18:41:58,019 INFO L168 Benchmark]: CodeCheck took 35347.91 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 388.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 407.6 MB. Max. memory is 11.5 GB. [2018-11-18 18:41:58,020 INFO L168 Benchmark]: Witness Printer took 82.83 ms. Allocated memory is still 1.6 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 18:41:58,022 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, 30 locations, 9 error locations. UNSAFE Result, 35.2s OverallTime, 54 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2097152 SDtfs, 950332868 SDslu, 2004471800 SDs, 0 SdLazy, 1619135292 SolverSat, 2098170436 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15264 GetRequests, 13895 SyntacticMatches, 951 SemanticMatches, 418 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100698 ImplicationChecksByTransitivity, 32.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 2557 NumberOfCodeBlocks, 2557 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 2426 ConstructedInterpolants, 0 QuantifiedInterpolants, 673977 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 53 InterpolantComputations, 27 PerfectInterpolantSequences, 7924/9254 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 - CounterExampleResult [Line: 26]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1] FCALL int array[10]; [L25] CALL, EXPR getNumbers2() [L13] CALL, EXPR getNumbers() [L5] int i = 0; VAL [array={41:0}] [L5] COND TRUE i < 10 VAL [array={41:0}] [L6] FCALL array[i] = i [L5] ++i VAL [array={41:0}] [L5] COND TRUE i < 10 VAL [array={41:0}] [L6] FCALL array[i] = i [L5] ++i VAL [array={41:0}] [L5] COND TRUE i < 10 VAL [array={41:0}] [L6] FCALL array[i] = i [L5] ++i VAL [array={41:0}] [L5] COND TRUE i < 10 VAL [array={41:0}] [L6] FCALL array[i] = i [L5] ++i VAL [array={41:0}] [L5] COND TRUE i < 10 VAL [array={41:0}] [L6] FCALL array[i] = i [L5] ++i VAL [array={41:0}] [L5] COND TRUE i < 10 VAL [array={41:0}] [L6] FCALL array[i] = i [L5] ++i VAL [array={41:0}] [L5] COND TRUE i < 10 VAL [array={41:0}] [L6] FCALL array[i] = i [L5] ++i VAL [array={41:0}] [L5] COND TRUE i < 10 VAL [array={41:0}] [L6] FCALL array[i] = i [L5] ++i VAL [array={41:0}] [L5] COND TRUE i < 10 VAL [array={41:0}] [L6] FCALL array[i] = i [L5] ++i VAL [array={41:0}] [L5] COND TRUE i < 10 VAL [array={41:0}] [L6] FCALL array[i] = i [L5] ++i VAL [array={41:0}] [L5] COND FALSE !(i < 10) VAL [array={41:0}] [L9] RET return array; [L13] EXPR getNumbers() [L13] int* numbers = getNumbers(); [L15] FCALL int numbers2[10]; [L17] int i = 0; VAL [array={41:0}] [L17] COND TRUE i < 10 VAL [array={41:0}] [L18] EXPR, FCALL numbers[i] VAL [array={41:0}] [L18] FCALL numbers2[i] = numbers[i] [L17] ++i VAL [array={41:0}] [L17] COND TRUE i < 10 VAL [array={41:0}] [L18] EXPR, FCALL numbers[i] VAL [array={41:0}] [L18] FCALL numbers2[i] = numbers[i] [L17] ++i VAL [array={41:0}] [L17] COND TRUE i < 10 VAL [array={41:0}] [L18] EXPR, FCALL numbers[i] VAL [array={41:0}] [L18] FCALL numbers2[i] = numbers[i] [L17] ++i VAL [array={41:0}] [L17] COND TRUE i < 10 VAL [array={41:0}] [L18] EXPR, FCALL numbers[i] VAL [array={41:0}] [L18] FCALL numbers2[i] = numbers[i] [L17] ++i VAL [array={41:0}] [L17] COND TRUE i < 10 VAL [array={41:0}] [L18] EXPR, FCALL numbers[i] VAL [array={41:0}] [L18] FCALL numbers2[i] = numbers[i] [L17] ++i VAL [array={41:0}] [L17] COND TRUE i < 10 VAL [array={41:0}] [L18] EXPR, FCALL numbers[i] VAL [array={41:0}] [L18] FCALL numbers2[i] = numbers[i] [L17] ++i VAL [array={41:0}] [L17] COND TRUE i < 10 VAL [array={41:0}] [L18] EXPR, FCALL numbers[i] VAL [array={41:0}] [L18] FCALL numbers2[i] = numbers[i] [L17] ++i VAL [array={41:0}] [L17] COND TRUE i < 10 VAL [array={41:0}] [L18] EXPR, FCALL numbers[i] VAL [array={41:0}] [L18] FCALL numbers2[i] = numbers[i] [L17] ++i VAL [array={41:0}] [L17] COND TRUE i < 10 VAL [array={41:0}] [L18] EXPR, FCALL numbers[i] VAL [array={41:0}] [L18] FCALL numbers2[i] = numbers[i] [L17] ++i VAL [array={41:0}] [L17] COND TRUE i < 10 VAL [array={41:0}] [L18] EXPR, FCALL numbers[i] VAL [array={41:0}] [L18] FCALL numbers2[i] = numbers[i] [L17] ++i VAL [array={41:0}] [L17] COND FALSE !(i < 10) VAL [array={41:0}] [L21] return numbers2; [L21] RET return numbers2; [L25] EXPR getNumbers2() [L25] int *numbers = getNumbers2(); [L26] FCALL numbers[0] = 100 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 214.02 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 950.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 71.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -183.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 304.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * CodeCheck took 35347.91 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 388.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 407.6 MB. Max. memory is 11.5 GB. * Witness Printer took 82.83 ms. Allocated memory is still 1.6 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...