./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/recursive-simple/id_i25_o25_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_27653bb4-f41a-436d-bfdf-0a48237ebfa8/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_27653bb4-f41a-436d-bfdf-0a48237ebfa8/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_27653bb4-f41a-436d-bfdf-0a48237ebfa8/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_27653bb4-f41a-436d-bfdf-0a48237ebfa8/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i25_o25_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_27653bb4-f41a-436d-bfdf-0a48237ebfa8/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_27653bb4-f41a-436d-bfdf-0a48237ebfa8/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 980109aaf5797fcdc56688cd1127831babfd66a2 ............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 09:06:39,552 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:06:39,553 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:06:39,561 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:06:39,561 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:06:39,562 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:06:39,563 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:06:39,564 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:06:39,565 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:06:39,566 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:06:39,566 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:06:39,567 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:06:39,567 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:06:39,568 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:06:39,569 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:06:39,569 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:06:39,570 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:06:39,571 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:06:39,573 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:06:39,574 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:06:39,575 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:06:39,575 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:06:39,577 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:06:39,577 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:06:39,577 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:06:39,578 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:06:39,579 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:06:39,579 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:06:39,580 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:06:39,581 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:06:39,581 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:06:39,581 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:06:39,581 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:06:39,582 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:06:39,582 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:06:39,583 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:06:39,583 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_27653bb4-f41a-436d-bfdf-0a48237ebfa8/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 09:06:39,593 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:06:39,593 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:06:39,594 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 09:06:39,594 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 09:06:39,594 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 09:06:39,594 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 09:06:39,595 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:06:39,595 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:06:39,595 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:06:39,595 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:06:39,595 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:06:39,595 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 09:06:39,595 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:06:39,596 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 09:06:39,596 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:06:39,596 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:06:39,596 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:06:39,596 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 09:06:39,596 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 09:06:39,596 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 09:06:39,597 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:06:39,597 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:06:39,597 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 09:06:39,597 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:06:39,597 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:06:39,597 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 09:06:39,597 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 09:06:39,597 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:06:39,598 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 09:06:39,598 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_27653bb4-f41a-436d-bfdf-0a48237ebfa8/bin-2019/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 980109aaf5797fcdc56688cd1127831babfd66a2 [2018-11-18 09:06:39,622 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:06:39,632 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:06:39,634 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:06:39,636 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:06:39,636 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:06:39,636 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_27653bb4-f41a-436d-bfdf-0a48237ebfa8/bin-2019/ukojak/../../sv-benchmarks/c/recursive-simple/id_i25_o25_true-unreach-call_true-termination.c [2018-11-18 09:06:39,677 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_27653bb4-f41a-436d-bfdf-0a48237ebfa8/bin-2019/ukojak/data/a1427370a/7f4d9691c10f45ab826f91387e9a8b94/FLAG75351fa70 [2018-11-18 09:06:39,975 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:06:39,976 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_27653bb4-f41a-436d-bfdf-0a48237ebfa8/sv-benchmarks/c/recursive-simple/id_i25_o25_true-unreach-call_true-termination.c [2018-11-18 09:06:39,980 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_27653bb4-f41a-436d-bfdf-0a48237ebfa8/bin-2019/ukojak/data/a1427370a/7f4d9691c10f45ab826f91387e9a8b94/FLAG75351fa70 [2018-11-18 09:06:39,990 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_27653bb4-f41a-436d-bfdf-0a48237ebfa8/bin-2019/ukojak/data/a1427370a/7f4d9691c10f45ab826f91387e9a8b94 [2018-11-18 09:06:39,992 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:06:39,993 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:06:39,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:06:39,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:06:39,996 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:06:39,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:06:39" (1/1) ... [2018-11-18 09:06:39,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cf76dfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:39, skipping insertion in model container [2018-11-18 09:06:39,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:06:39" (1/1) ... [2018-11-18 09:06:40,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:06:40,015 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:06:40,117 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:06:40,119 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:06:40,128 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:06:40,137 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:06:40,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:40 WrapperNode [2018-11-18 09:06:40,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:06:40,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:06:40,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:06:40,138 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:06:40,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:40" (1/1) ... [2018-11-18 09:06:40,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:40" (1/1) ... [2018-11-18 09:06:40,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:06:40,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:06:40,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:06:40,157 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:06:40,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:40" (1/1) ... [2018-11-18 09:06:40,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:40" (1/1) ... [2018-11-18 09:06:40,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:40" (1/1) ... [2018-11-18 09:06:40,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:40" (1/1) ... [2018-11-18 09:06:40,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:40" (1/1) ... [2018-11-18 09:06:40,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:40" (1/1) ... [2018-11-18 09:06:40,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:40" (1/1) ... [2018-11-18 09:06:40,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:06:40,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:06:40,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:06:40,167 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:06:40,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_27653bb4-f41a-436d-bfdf-0a48237ebfa8/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 09:06:40,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:06:40,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:06:40,250 INFO L130 BoogieDeclarations]: Found specification of procedure id [2018-11-18 09:06:40,250 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2018-11-18 09:06:40,352 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:06:40,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:06:40 BoogieIcfgContainer [2018-11-18 09:06:40,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:06:40,353 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 09:06:40,353 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 09:06:40,360 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 09:06:40,360 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:06:40" (1/1) ... [2018-11-18 09:06:40,367 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:06:40,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:40,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-11-18 09:06:40,393 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-11-18 09:06:40,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 09:06:40,398 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:40,516 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 09:06:40,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:40,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 18 transitions. [2018-11-18 09:06:40,604 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-11-18 09:06:40,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 09:06:40,605 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:40,640 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 09:06:40,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:40,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 23 transitions. [2018-11-18 09:06:40,778 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2018-11-18 09:06:40,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 09:06:40,778 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:40,828 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 09:06:40,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:40,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 29 transitions. [2018-11-18 09:06:40,901 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2018-11-18 09:06:40,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 09:06:40,902 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:40,955 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-18 09:06:41,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:41,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 25 states and 36 transitions. [2018-11-18 09:06:41,040 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2018-11-18 09:06:41,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-18 09:06:41,041 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:41,094 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-18 09:06:41,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:41,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 28 states and 44 transitions. [2018-11-18 09:06:41,182 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2018-11-18 09:06:41,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-18 09:06:41,183 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:41,235 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-11-18 09:06:41,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:41,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 31 states and 53 transitions. [2018-11-18 09:06:41,342 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 53 transitions. [2018-11-18 09:06:41,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-18 09:06:41,343 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:41,410 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-11-18 09:06:41,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:41,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 34 states and 63 transitions. [2018-11-18 09:06:41,502 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 63 transitions. [2018-11-18 09:06:41,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-18 09:06:41,503 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:41,551 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-11-18 09:06:41,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:41,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 37 states and 74 transitions. [2018-11-18 09:06:41,652 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 74 transitions. [2018-11-18 09:06:41,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-18 09:06:41,653 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:41,705 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-11-18 09:06:41,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:41,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 40 states and 86 transitions. [2018-11-18 09:06:41,836 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 86 transitions. [2018-11-18 09:06:41,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-18 09:06:41,837 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:41,885 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-11-18 09:06:42,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:42,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 43 states and 99 transitions. [2018-11-18 09:06:42,003 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 99 transitions. [2018-11-18 09:06:42,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-18 09:06:42,004 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:42,056 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 09:06:42,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:42,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 46 states and 113 transitions. [2018-11-18 09:06:42,193 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 113 transitions. [2018-11-18 09:06:42,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-11-18 09:06:42,194 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:42,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:42,259 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2018-11-18 09:06:42,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:42,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 49 states and 128 transitions. [2018-11-18 09:06:42,392 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 128 transitions. [2018-11-18 09:06:42,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-11-18 09:06:42,393 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:42,446 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2018-11-18 09:06:42,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:42,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 52 states and 144 transitions. [2018-11-18 09:06:42,607 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 144 transitions. [2018-11-18 09:06:42,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-11-18 09:06:42,608 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:42,698 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2018-11-18 09:06:42,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:42,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 55 states and 161 transitions. [2018-11-18 09:06:42,881 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 161 transitions. [2018-11-18 09:06:42,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-11-18 09:06:42,883 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:42,932 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2018-11-18 09:06:43,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:43,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 58 states and 179 transitions. [2018-11-18 09:06:43,061 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 179 transitions. [2018-11-18 09:06:43,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-11-18 09:06:43,062 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:43,113 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2018-11-18 09:06:43,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:43,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 61 states and 198 transitions. [2018-11-18 09:06:43,247 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 198 transitions. [2018-11-18 09:06:43,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-11-18 09:06:43,249 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:43,323 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2018-11-18 09:06:43,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:43,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 64 states and 218 transitions. [2018-11-18 09:06:43,538 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 218 transitions. [2018-11-18 09:06:43,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-11-18 09:06:43,539 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:43,591 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2018-11-18 09:06:43,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:43,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 67 states and 239 transitions. [2018-11-18 09:06:43,735 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 239 transitions. [2018-11-18 09:06:43,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-11-18 09:06:43,736 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:43,782 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2018-11-18 09:06:43,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:43,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 70 states and 261 transitions. [2018-11-18 09:06:43,945 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 261 transitions. [2018-11-18 09:06:43,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-11-18 09:06:43,946 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:44,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2018-11-18 09:06:44,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:44,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 73 states and 284 transitions. [2018-11-18 09:06:44,169 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 284 transitions. [2018-11-18 09:06:44,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-11-18 09:06:44,170 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:44,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 0 proven. 610 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2018-11-18 09:06:44,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:44,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 76 states and 308 transitions. [2018-11-18 09:06:44,399 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 308 transitions. [2018-11-18 09:06:44,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-11-18 09:06:44,399 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:44,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2018-11-18 09:06:44,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:44,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 79 states and 333 transitions. [2018-11-18 09:06:44,639 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 333 transitions. [2018-11-18 09:06:44,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-11-18 09:06:44,640 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:44,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2018-11-18 09:06:44,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:44,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 82 states and 359 transitions. [2018-11-18 09:06:44,859 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 359 transitions. [2018-11-18 09:06:44,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-11-18 09:06:44,860 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:44,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 0 proven. 805 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2018-11-18 09:06:45,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:45,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 85 states and 386 transitions. [2018-11-18 09:06:45,229 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 386 transitions. [2018-11-18 09:06:45,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-11-18 09:06:45,230 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:45,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 0 proven. 876 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2018-11-18 09:06:45,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:06:45,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 88 states and 414 transitions. [2018-11-18 09:06:45,541 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 414 transitions. [2018-11-18 09:06:45,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-11-18 09:06:45,542 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:06:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:47,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1900 backedges. 0 proven. 950 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked. [2018-11-18 09:07:06,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:07:06,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2126 states to 167 states and 1144 transitions. [2018-11-18 09:07:06,226 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 1144 transitions. [2018-11-18 09:07:06,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-11-18 09:07:06,228 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:07:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:07:07,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2054 backedges. 1027 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2018-11-18 09:07:10,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:07:10,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2296 states to 89 states and 91 transitions. [2018-11-18 09:07:10,903 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 91 transitions. [2018-11-18 09:07:10,904 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 09:07:10,904 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 28 iterations. [2018-11-18 09:07:10,910 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-18 09:07:11,094 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 1 [2018-11-18 09:07:11,277 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 1 [2018-11-18 09:07:11,442 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 1 [2018-11-18 09:07:11,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 09:07:11 ImpRootNode [2018-11-18 09:07:11,443 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 09:07:11,444 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:07:11,444 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:07:11,444 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:07:11,444 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:06:40" (3/4) ... [2018-11-18 09:07:11,447 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 09:07:11,453 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2018-11-18 09:07:11,456 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 09:07:11,456 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 09:07:11,456 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 09:07:11,485 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_27653bb4-f41a-436d-bfdf-0a48237ebfa8/bin-2019/ukojak/witness.graphml [2018-11-18 09:07:11,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:07:11,486 INFO L168 Benchmark]: Toolchain (without parser) took 31494.11 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 681.1 MB). Free memory was 958.2 MB in the beginning and 1.5 GB in the end (delta: -537.1 MB). Peak memory consumption was 143.9 MB. Max. memory is 11.5 GB. [2018-11-18 09:07:11,487 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:07:11,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.36 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:07:11,487 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.90 ms. Allocated memory is still 1.0 GB. Free memory is still 947.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:07:11,487 INFO L168 Benchmark]: Boogie Preprocessor took 9.61 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:07:11,488 INFO L168 Benchmark]: RCFGBuilder took 186.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -200.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-18 09:07:11,488 INFO L168 Benchmark]: CodeCheck took 31090.36 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 516.4 MB). Free memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: -367.0 MB). Peak memory consumption was 835.6 MB. Max. memory is 11.5 GB. [2018-11-18 09:07:11,488 INFO L168 Benchmark]: Witness Printer took 41.98 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 11.5 GB. [2018-11-18 09:07:11,491 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 1 error locations. SAFE Result, 30.5s OverallTime, 28 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 939524104 SDtfs, 872415420 SDslu, 1409286512 SDs, 0 SdLazy, -268419604 SolverSat, 805311580 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50831 GetRequests, 48769 SyntacticMatches, 1622 SemanticMatches, 440 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78774 ImplicationChecksByTransitivity, 23.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 2349 NumberOfCodeBlocks, 2349 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 2322 ConstructedInterpolants, 0 QuantifiedInterpolants, 711504 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 2 PerfectInterpolantSequences, 10504/18954 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.36 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 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 18.90 ms. Allocated memory is still 1.0 GB. Free memory is still 947.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.61 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 186.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -200.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * CodeCheck took 31090.36 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 516.4 MB). Free memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: -367.0 MB). Peak memory consumption was 835.6 MB. Max. memory is 11.5 GB. * Witness Printer took 41.98 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...