./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/byte_add-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2b0dc894-1fb5-43eb-b106-708fadb278f8/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2b0dc894-1fb5-43eb-b106-708fadb278f8/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2b0dc894-1fb5-43eb-b106-708fadb278f8/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2b0dc894-1fb5-43eb-b106-708fadb278f8/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/byte_add-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_2b0dc894-1fb5-43eb-b106-708fadb278f8/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2b0dc894-1fb5-43eb-b106-708fadb278f8/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a2c46755d0cb80f6b2e7b990e0a1bd9a49737b84 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 10:16:18,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:16:18,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:16:18,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:16:18,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:16:18,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:16:18,709 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:16:18,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:16:18,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:16:18,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:16:18,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:16:18,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:16:18,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:16:18,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:16:18,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:16:18,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:16:18,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:16:18,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:16:18,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:16:18,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:16:18,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:16:18,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:16:18,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:16:18,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:16:18,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:16:18,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:16:18,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:16:18,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:16:18,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:16:18,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:16:18,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:16:18,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:16:18,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:16:18,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:16:18,734 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:16:18,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:16:18,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:16:18,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:16:18,735 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:16:18,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:16:18,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:16:18,738 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2b0dc894-1fb5-43eb-b106-708fadb278f8/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2019-10-22 10:16:18,750 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:16:18,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:16:18,751 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:16:18,751 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:16:18,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:16:18,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:16:18,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:16:18,755 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:16:18,755 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 10:16:18,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:16:18,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:16:18,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:16:18,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:16:18,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:16:18,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:16:18,756 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 10:16:18,756 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:16:18,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:16:18,756 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:16:18,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:16:18,757 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:16:18,757 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:16:18,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:16:18,757 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:16:18,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:16:18,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:16:18,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:16:18,758 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:16:18,758 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:16:18,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:16:18,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:16:18,758 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_2b0dc894-1fb5-43eb-b106-708fadb278f8/bin/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 ! overflow) ) 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 -> a2c46755d0cb80f6b2e7b990e0a1bd9a49737b84 [2019-10-22 10:16:18,797 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:16:18,806 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:16:18,810 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:16:18,812 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:16:18,812 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:16:18,813 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2b0dc894-1fb5-43eb-b106-708fadb278f8/bin/ukojak/../../sv-benchmarks/c/bitvector/byte_add-1.i [2019-10-22 10:16:18,865 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2b0dc894-1fb5-43eb-b106-708fadb278f8/bin/ukojak/data/cd020c58b/7321555150cd431bbf41d4866bfd3afe/FLAG6bad05148 [2019-10-22 10:16:19,272 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:16:19,273 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2b0dc894-1fb5-43eb-b106-708fadb278f8/sv-benchmarks/c/bitvector/byte_add-1.i [2019-10-22 10:16:19,280 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2b0dc894-1fb5-43eb-b106-708fadb278f8/bin/ukojak/data/cd020c58b/7321555150cd431bbf41d4866bfd3afe/FLAG6bad05148 [2019-10-22 10:16:19,294 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2b0dc894-1fb5-43eb-b106-708fadb278f8/bin/ukojak/data/cd020c58b/7321555150cd431bbf41d4866bfd3afe [2019-10-22 10:16:19,297 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:16:19,298 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:16:19,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:16:19,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:16:19,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:16:19,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:16:19" (1/1) ... [2019-10-22 10:16:19,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ebe14f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:19, skipping insertion in model container [2019-10-22 10:16:19,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:16:19" (1/1) ... [2019-10-22 10:16:19,313 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:16:19,333 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:16:19,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:16:19,583 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:16:19,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:16:19,626 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:16:19,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:19 WrapperNode [2019-10-22 10:16:19,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:16:19,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:16:19,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:16:19,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:16:19,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:19" (1/1) ... [2019-10-22 10:16:19,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:19" (1/1) ... [2019-10-22 10:16:19,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:16:19,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:16:19,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:16:19,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:16:19,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:19" (1/1) ... [2019-10-22 10:16:19,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:19" (1/1) ... [2019-10-22 10:16:19,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:19" (1/1) ... [2019-10-22 10:16:19,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:19" (1/1) ... [2019-10-22 10:16:19,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:19" (1/1) ... [2019-10-22 10:16:19,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:19" (1/1) ... [2019-10-22 10:16:19,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:19" (1/1) ... [2019-10-22 10:16:19,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:16:19,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:16:19,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:16:19,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:16:19,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2b0dc894-1fb5-43eb-b106-708fadb278f8/bin/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 [2019-10-22 10:16:19,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:16:19,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:16:20,335 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:16:20,335 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-22 10:16:20,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:20 BoogieIcfgContainer [2019-10-22 10:16:20,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:16:20,337 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:16:20,337 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:16:20,346 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:16:20,347 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:20" (1/1) ... [2019-10-22 10:16:20,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:16:20,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:20,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 95 states and 112 transitions. [2019-10-22 10:16:20,393 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 112 transitions. [2019-10-22 10:16:20,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 10:16:20,396 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:20,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:20,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:20,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 94 states and 111 transitions. [2019-10-22 10:16:20,510 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 111 transitions. [2019-10-22 10:16:20,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 10:16:20,511 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:20,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:20,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:20,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:20,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 93 states and 110 transitions. [2019-10-22 10:16:20,531 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 110 transitions. [2019-10-22 10:16:20,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 10:16:20,532 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:20,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:20,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:20,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 92 states and 109 transitions. [2019-10-22 10:16:20,550 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 109 transitions. [2019-10-22 10:16:20,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 10:16:20,550 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:20,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:20,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:20,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 91 states and 108 transitions. [2019-10-22 10:16:20,571 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 108 transitions. [2019-10-22 10:16:20,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 10:16:20,572 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:20,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:20,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:20,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 90 states and 107 transitions. [2019-10-22 10:16:20,599 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 107 transitions. [2019-10-22 10:16:20,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 10:16:20,602 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:20,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:20,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:20,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 89 states and 106 transitions. [2019-10-22 10:16:20,622 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 106 transitions. [2019-10-22 10:16:20,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 10:16:20,623 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:20,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:20,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:20,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 88 states and 105 transitions. [2019-10-22 10:16:20,646 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 105 transitions. [2019-10-22 10:16:20,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 10:16:20,647 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:20,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:20,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:20,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 87 states and 104 transitions. [2019-10-22 10:16:20,687 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 104 transitions. [2019-10-22 10:16:20,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 10:16:20,693 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:20,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:20,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:20,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 86 states and 103 transitions. [2019-10-22 10:16:20,724 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 103 transitions. [2019-10-22 10:16:20,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 10:16:20,725 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:20,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:20,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:20,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:20,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 85 states and 102 transitions. [2019-10-22 10:16:20,742 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 102 transitions. [2019-10-22 10:16:20,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 10:16:20,743 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:20,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:20,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:20,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 84 states and 101 transitions. [2019-10-22 10:16:20,759 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 101 transitions. [2019-10-22 10:16:20,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 10:16:20,760 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:20,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:20,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:20,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 83 states and 100 transitions. [2019-10-22 10:16:20,805 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 100 transitions. [2019-10-22 10:16:20,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 10:16:20,805 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:20,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:20,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:20,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 82 states and 99 transitions. [2019-10-22 10:16:20,833 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 99 transitions. [2019-10-22 10:16:20,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 10:16:20,833 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:20,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:20,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:20,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 81 states and 98 transitions. [2019-10-22 10:16:20,849 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 98 transitions. [2019-10-22 10:16:20,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:16:20,849 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:20,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:20,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:20,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 80 states and 97 transitions. [2019-10-22 10:16:20,865 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 97 transitions. [2019-10-22 10:16:20,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:16:20,866 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:20,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:20,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:20,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 79 states and 96 transitions. [2019-10-22 10:16:20,905 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 96 transitions. [2019-10-22 10:16:20,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:16:20,905 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:20,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:20,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:20,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 78 states and 95 transitions. [2019-10-22 10:16:20,922 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 95 transitions. [2019-10-22 10:16:20,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:16:20,922 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:20,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:20,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:20,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 77 states and 94 transitions. [2019-10-22 10:16:20,935 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 94 transitions. [2019-10-22 10:16:20,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:16:20,936 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:20,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:20,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:20,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 76 states and 93 transitions. [2019-10-22 10:16:20,951 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 93 transitions. [2019-10-22 10:16:20,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:16:20,952 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:20,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:20,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:20,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 75 states and 92 transitions. [2019-10-22 10:16:20,968 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 92 transitions. [2019-10-22 10:16:20,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:16:20,969 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:20,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:20,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:20,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 74 states and 91 transitions. [2019-10-22 10:16:20,987 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 91 transitions. [2019-10-22 10:16:20,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:16:20,992 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:21,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:21,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:21,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 73 states and 90 transitions. [2019-10-22 10:16:21,012 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 90 transitions. [2019-10-22 10:16:21,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:16:21,012 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:21,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:21,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:21,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:21,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 72 states and 89 transitions. [2019-10-22 10:16:21,038 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2019-10-22 10:16:21,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:16:21,038 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:21,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:21,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:21,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 71 states and 88 transitions. [2019-10-22 10:16:21,054 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2019-10-22 10:16:21,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:16:21,054 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:21,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:21,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:21,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 70 states and 87 transitions. [2019-10-22 10:16:21,067 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 87 transitions. [2019-10-22 10:16:21,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:16:21,068 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:21,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:21,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:21,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 69 states and 86 transitions. [2019-10-22 10:16:21,083 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2019-10-22 10:16:21,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:16:21,084 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:21,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:21,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:21,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 68 states and 85 transitions. [2019-10-22 10:16:21,094 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 85 transitions. [2019-10-22 10:16:21,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:16:21,095 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:21,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:21,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:21,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:21,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 67 states and 84 transitions. [2019-10-22 10:16:21,110 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 84 transitions. [2019-10-22 10:16:21,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:16:21,111 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:21,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:21,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:21,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 66 states and 83 transitions. [2019-10-22 10:16:21,121 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 83 transitions. [2019-10-22 10:16:21,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:16:21,121 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:21,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:21,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:21,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:21,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 65 states and 82 transitions. [2019-10-22 10:16:21,134 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 82 transitions. [2019-10-22 10:16:21,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:16:21,135 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:21,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:21,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:21,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 64 states and 81 transitions. [2019-10-22 10:16:21,146 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 81 transitions. [2019-10-22 10:16:21,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:16:21,147 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:21,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:21,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:21,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 63 states and 80 transitions. [2019-10-22 10:16:21,159 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2019-10-22 10:16:21,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 10:16:21,159 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:21,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:21,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:21,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 62 states and 79 transitions. [2019-10-22 10:16:21,174 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 79 transitions. [2019-10-22 10:16:21,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 10:16:21,174 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:21,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:21,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:21,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:21,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 61 states and 78 transitions. [2019-10-22 10:16:21,184 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 78 transitions. [2019-10-22 10:16:21,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 10:16:21,184 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:21,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:21,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:21,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:21,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 60 states and 77 transitions. [2019-10-22 10:16:21,195 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 77 transitions. [2019-10-22 10:16:21,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 10:16:21,195 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:21,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:21,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:21,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:21,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 59 states and 76 transitions. [2019-10-22 10:16:21,206 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2019-10-22 10:16:21,206 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 10:16:21,206 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 37 iterations. [2019-10-22 10:16:21,216 INFO L771 CodeCheckObserver]: All specifications hold 36 specifications checked. All of them hold [2019-10-22 10:16:21,263 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:21,267 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:21,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:16:21 ImpRootNode [2019-10-22 10:16:21,268 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:16:21,268 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:16:21,268 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:16:21,268 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:16:21,269 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:20" (3/4) ... [2019-10-22 10:16:21,272 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 10:16:21,285 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2019-10-22 10:16:21,287 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-10-22 10:16:21,287 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 10:16:21,356 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2b0dc894-1fb5-43eb-b106-708fadb278f8/bin/ukojak/witness.graphml [2019-10-22 10:16:21,356 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:16:21,358 INFO L168 Benchmark]: Toolchain (without parser) took 2059.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 946.1 MB in the beginning and 984.7 MB in the end (delta: -38.6 MB). Peak memory consumption was 104.0 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:21,358 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:16:21,358 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -191.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:21,359 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.80 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:21,359 INFO L168 Benchmark]: Boogie Preprocessor took 35.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:16:21,362 INFO L168 Benchmark]: RCFGBuilder took 606.57 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: 45.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:21,362 INFO L168 Benchmark]: CodeCheck took 931.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.1 MB in the end (delta: 96.7 MB). Peak memory consumption was 96.7 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:21,362 INFO L168 Benchmark]: Witness Printer took 87.90 ms. Allocated memory is still 1.2 GB. Free memory was 990.1 MB in the beginning and 984.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:21,364 INFO L335 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, 95 locations, 36 error locations. Result: SAFE, OverallTime: 0.8s, OverallIterations: 37, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: -1471473888 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2510 GetRequests, 2510 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 314 ConstructedInterpolants, 0 QuantifiedInterpolants, 2974 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 36 InterpolantComputations, 36 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 68]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 68]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 36 specifications checked. All of them hold - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 330.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -191.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.80 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 606.57 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: 45.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 11.5 GB. * CodeCheck took 931.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.1 MB in the end (delta: 96.7 MB). Peak memory consumption was 96.7 MB. Max. memory is 11.5 GB. * Witness Printer took 87.90 ms. Allocated memory is still 1.2 GB. Free memory was 990.1 MB in the beginning and 984.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...