./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f1694cc3-cc86-480e-aa9a-417653caede1/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f1694cc3-cc86-480e-aa9a-417653caede1/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f1694cc3-cc86-480e-aa9a-417653caede1/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f1694cc3-cc86-480e-aa9a-417653caede1/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f1694cc3-cc86-480e-aa9a-417653caede1/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f1694cc3-cc86-480e-aa9a-417653caede1/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 64bit --witnessprinter.graph.data.programhash 4c761fb15c9d367876fc9f1553874e9680fa1668 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:02:49,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:02:49,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:02:49,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:02:49,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:02:49,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:02:49,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:02:49,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:02:49,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:02:49,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:02:49,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:02:49,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:02:49,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:02:49,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:02:49,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:02:49,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:02:49,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:02:49,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:02:49,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:02:49,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:02:49,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:02:49,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:02:49,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:02:49,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:02:49,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:02:49,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:02:49,854 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:02:49,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:02:49,856 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:02:49,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:02:49,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:02:49,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:02:49,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:02:49,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:02:49,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:02:49,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:02:49,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:02:49,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:02:49,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:02:49,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:02:49,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:02:49,870 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f1694cc3-cc86-480e-aa9a-417653caede1/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-30 01:02:49,901 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:02:49,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:02:49,902 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:02:49,902 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-30 01:02:49,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:02:49,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:02:49,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:02:49,904 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:02:49,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:02:49,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:02:49,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:02:49,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:02:49,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:02:49,906 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 01:02:49,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:02:49,906 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:02:49,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:02:49,907 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 01:02:49,907 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 01:02:49,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:02:49,907 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:02:49,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 01:02:49,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:02:49,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:02:49,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:02:49,908 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 01:02:49,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:02:49,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:02:49,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_f1694cc3-cc86-480e-aa9a-417653caede1/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f1694cc3-cc86-480e-aa9a-417653caede1/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c761fb15c9d367876fc9f1553874e9680fa1668 [2020-11-30 01:02:50,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:02:50,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:02:50,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:02:50,235 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:02:50,237 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:02:50,238 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f1694cc3-cc86-480e-aa9a-417653caede1/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c [2020-11-30 01:02:50,339 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f1694cc3-cc86-480e-aa9a-417653caede1/bin/ukojak/data/a5faf5176/d098dbf6898646ebb905c257b07c6cc7/FLAGc2c55a2ef [2020-11-30 01:02:50,906 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:02:50,906 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f1694cc3-cc86-480e-aa9a-417653caede1/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c [2020-11-30 01:02:50,913 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f1694cc3-cc86-480e-aa9a-417653caede1/bin/ukojak/data/a5faf5176/d098dbf6898646ebb905c257b07c6cc7/FLAGc2c55a2ef [2020-11-30 01:02:51,237 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f1694cc3-cc86-480e-aa9a-417653caede1/bin/ukojak/data/a5faf5176/d098dbf6898646ebb905c257b07c6cc7 [2020-11-30 01:02:51,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:02:51,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:02:51,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:51,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:02:51,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:02:51,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:51" (1/1) ... [2020-11-30 01:02:51,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28b7ceda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:51, skipping insertion in model container [2020-11-30 01:02:51,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:51" (1/1) ... [2020-11-30 01:02:51,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:02:51,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:02:51,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:51,445 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:02:51,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:51,478 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:02:51,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:51 WrapperNode [2020-11-30 01:02:51,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:51,480 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:02:51,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:02:51,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:02:51,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:51" (1/1) ... [2020-11-30 01:02:51,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:51" (1/1) ... [2020-11-30 01:02:51,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:02:51,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:02:51,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:02:51,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:02:51,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:51" (1/1) ... [2020-11-30 01:02:51,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:51" (1/1) ... [2020-11-30 01:02:51,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:51" (1/1) ... [2020-11-30 01:02:51,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:51" (1/1) ... [2020-11-30 01:02:51,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:51" (1/1) ... [2020-11-30 01:02:51,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:51" (1/1) ... [2020-11-30 01:02:51,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:51" (1/1) ... [2020-11-30 01:02:51,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:02:51,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:02:51,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:02:51,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:02:51,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1694cc3-cc86-480e-aa9a-417653caede1/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 [2020-11-30 01:02:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:02:51,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:02:52,029 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:02:52,029 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 01:02:52,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:52 BoogieIcfgContainer [2020-11-30 01:02:52,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:02:52,033 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 01:02:52,033 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 01:02:52,048 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 01:02:52,049 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:52" (1/1) ... [2020-11-30 01:02:52,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:52,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:02:52,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2020-11-30 01:02:52,109 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-11-30 01:02:52,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-30 01:02:52,111 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:02:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:52,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:52,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:02:52,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2020-11-30 01:02:52,423 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2020-11-30 01:02:52,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 01:02:52,423 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:02:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:52,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:52,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:02:52,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2020-11-30 01:02:52,845 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2020-11-30 01:02:52,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 01:02:52,846 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:02:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:52,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:52,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:02:52,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2020-11-30 01:02:52,955 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2020-11-30 01:02:52,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 01:02:52,956 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:02:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:53,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:53,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:02:53,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 27 states and 33 transitions. [2020-11-30 01:02:53,031 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2020-11-30 01:02:53,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 01:02:53,032 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:02:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:53,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:53,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:02:53,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 33 states and 46 transitions. [2020-11-30 01:02:53,631 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2020-11-30 01:02:53,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 01:02:53,633 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:02:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:53,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:54,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:02:54,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 35 states and 50 transitions. [2020-11-30 01:02:54,312 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2020-11-30 01:02:54,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 01:02:54,313 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:02:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:54,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:55,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:02:55,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 42 states and 65 transitions. [2020-11-30 01:02:55,433 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 65 transitions. [2020-11-30 01:02:55,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:02:55,434 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:02:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:55,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:56,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:02:56,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 44 states and 68 transitions. [2020-11-30 01:02:56,067 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 68 transitions. [2020-11-30 01:02:56,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:02:56,068 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:02:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:56,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:57,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:02:57,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 52 states and 83 transitions. [2020-11-30 01:02:57,762 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 83 transitions. [2020-11-30 01:02:57,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:02:57,763 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:02:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:57,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:58,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:02:58,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 53 states and 85 transitions. [2020-11-30 01:02:58,507 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 85 transitions. [2020-11-30 01:02:58,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:02:58,508 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:02:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:58,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:58,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:02:58,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 55 states and 87 transitions. [2020-11-30 01:02:58,910 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 87 transitions. [2020-11-30 01:02:58,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:02:58,911 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:02:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:58,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:59,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:02:59,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 57 states and 91 transitions. [2020-11-30 01:02:59,153 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 91 transitions. [2020-11-30 01:02:59,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:02:59,154 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:02:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:59,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:00,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:03:00,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 66 states and 112 transitions. [2020-11-30 01:03:00,964 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 112 transitions. [2020-11-30 01:03:00,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:03:00,965 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:03:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:00,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:01,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:03:01,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 68 states and 114 transitions. [2020-11-30 01:03:01,230 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 114 transitions. [2020-11-30 01:03:01,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:03:01,231 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:03:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:01,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:01,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:03:01,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 70 states and 118 transitions. [2020-11-30 01:03:01,699 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 118 transitions. [2020-11-30 01:03:01,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:03:01,700 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:03:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:01,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:02,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:03:02,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 72 states and 124 transitions. [2020-11-30 01:03:02,339 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 124 transitions. [2020-11-30 01:03:02,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:03:02,339 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:03:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:02,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:02,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:03:02,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 71 states and 121 transitions. [2020-11-30 01:03:02,873 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 121 transitions. [2020-11-30 01:03:02,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:03:02,874 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:03:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:02,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:03,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:03:03,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 75 states and 129 transitions. [2020-11-30 01:03:03,958 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 129 transitions. [2020-11-30 01:03:03,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:03:03,959 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:03:03,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:03,972 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 01:03:04,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:03:04,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 75 states and 126 transitions. [2020-11-30 01:03:04,269 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 126 transitions. [2020-11-30 01:03:04,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:03:04,270 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:03:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:04,360 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:05,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:03:05,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 82 states and 139 transitions. [2020-11-30 01:03:05,826 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 139 transitions. [2020-11-30 01:03:05,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:03:05,827 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:03:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:05,943 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:06,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:03:06,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 84 states and 142 transitions. [2020-11-30 01:03:06,396 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 142 transitions. [2020-11-30 01:03:06,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:03:06,398 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:03:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:06,544 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:08,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:03:08,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 90 states and 150 transitions. [2020-11-30 01:03:08,068 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 150 transitions. [2020-11-30 01:03:08,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:03:08,068 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:03:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:08,081 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 01:03:08,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:03:08,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 90 states and 149 transitions. [2020-11-30 01:03:08,598 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 149 transitions. [2020-11-30 01:03:08,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 01:03:08,599 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:03:08,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:08,729 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:09,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:03:09,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 91 states and 152 transitions. [2020-11-30 01:03:09,584 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 152 transitions. [2020-11-30 01:03:09,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-30 01:03:09,584 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:03:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:09,701 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:11,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:03:11,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 100 states and 168 transitions. [2020-11-30 01:03:11,812 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 168 transitions. [2020-11-30 01:03:11,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 01:03:11,813 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:03:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:11,952 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:12,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:03:12,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 100 states and 167 transitions. [2020-11-30 01:03:12,356 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 167 transitions. [2020-11-30 01:03:12,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 01:03:12,357 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:03:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:12,551 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:13,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:03:13,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 102 states and 173 transitions. [2020-11-30 01:03:13,380 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 173 transitions. [2020-11-30 01:03:13,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 01:03:13,381 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:03:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:13,542 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:14,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:03:14,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 107 states and 180 transitions. [2020-11-30 01:03:14,623 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 180 transitions. [2020-11-30 01:03:14,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 01:03:14,623 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:03:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:14,641 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:15,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:03:15,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 110 states and 183 transitions. [2020-11-30 01:03:15,572 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 183 transitions. [2020-11-30 01:03:15,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 01:03:15,573 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:03:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:15,589 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 01:03:16,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:03:16,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 115 states and 189 transitions. [2020-11-30 01:03:16,997 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 189 transitions. [2020-11-30 01:03:16,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 01:03:16,997 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:03:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:17,010 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-30 01:03:17,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:03:17,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 116 states and 189 transitions. [2020-11-30 01:03:17,454 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 189 transitions. [2020-11-30 01:03:17,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-30 01:03:17,454 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:03:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:17,476 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-30 01:03:17,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:03:17,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 117 states and 189 transitions. [2020-11-30 01:03:17,798 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 189 transitions. [2020-11-30 01:03:17,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 01:03:17,798 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:03:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:17,818 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-11-30 01:03:18,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:03:18,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 119 states and 191 transitions. [2020-11-30 01:03:18,287 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 191 transitions. [2020-11-30 01:03:18,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 01:03:18,288 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:03:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:18,312 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-11-30 01:03:19,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:03:19,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2020-11-30 01:03:19,055 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2020-11-30 01:03:19,055 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:03:19,055 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 35 iterations. [2020-11-30 01:03:19,063 INFO L765 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2020-11-30 01:03:19,329 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-30 01:03:19,336 INFO L569 CodeCheckObserver]: Invariant with dag size 9 [2020-11-30 01:03:19,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 01:03:19 ImpRootNode [2020-11-30 01:03:19,349 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 01:03:19,350 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:03:19,350 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:03:19,350 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:03:19,352 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:52" (3/4) ... [2020-11-30 01:03:19,356 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:03:19,369 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 01:03:19,369 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-30 01:03:19,377 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:03:19,474 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f1694cc3-cc86-480e-aa9a-417653caede1/bin/ukojak/witness.graphml [2020-11-30 01:03:19,479 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:03:19,481 INFO L168 Benchmark]: Toolchain (without parser) took 28238.19 ms. Allocated memory was 94.4 MB in the beginning and 343.9 MB in the end (delta: 249.6 MB). Free memory was 73.9 MB in the beginning and 138.8 MB in the end (delta: -64.9 MB). Peak memory consumption was 184.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:03:19,482 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory was 56.6 MB in the beginning and 56.5 MB in the end (delta: 70.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:03:19,483 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.33 ms. Allocated memory is still 94.4 MB. Free memory was 73.6 MB in the beginning and 73.7 MB in the end (delta: -114.9 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:03:19,485 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.85 ms. Allocated memory is still 94.4 MB. Free memory was 73.7 MB in the beginning and 72.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:03:19,485 INFO L168 Benchmark]: Boogie Preprocessor took 24.25 ms. Allocated memory is still 94.4 MB. Free memory was 72.2 MB in the beginning and 71.2 MB in the end (delta: 925.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:03:19,489 INFO L168 Benchmark]: RCFGBuilder took 451.25 ms. Allocated memory is still 94.4 MB. Free memory was 71.2 MB in the beginning and 59.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:03:19,490 INFO L168 Benchmark]: CodeCheck took 27316.06 ms. Allocated memory was 94.4 MB in the beginning and 343.9 MB in the end (delta: 249.6 MB). Free memory was 59.7 MB in the beginning and 141.9 MB in the end (delta: -82.1 MB). Peak memory consumption was 169.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:03:19,494 INFO L168 Benchmark]: Witness Printer took 129.46 ms. Allocated memory is still 343.9 MB. Free memory was 141.9 MB in the beginning and 138.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:03:19,497 INFO L339 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, 23 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 26.9s, OverallIterations: 35, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: -1518337984 SDtfs, 1252379064 SDslu, -1369440128 SDs, 0 SdLazy, -2038857756 SolverSat, -1706284276 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4835 GetRequests, 4259 SyntacticMatches, 234 SemanticMatches, 342 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59990 ImplicationChecksByTransitivity, 24.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 498 NumberOfCodeBlocks, 498 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 464 ConstructedInterpolants, 0 QuantifiedInterpolants, 25393 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 34 InterpolantComputations, 27 PerfectInterpolantSequences, 165/211 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: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((x <= 2147483647 && 0 <= y) && 0 <= x) && y <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory was 56.6 MB in the beginning and 56.5 MB in the end (delta: 70.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 235.33 ms. Allocated memory is still 94.4 MB. Free memory was 73.6 MB in the beginning and 73.7 MB in the end (delta: -114.9 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.85 ms. Allocated memory is still 94.4 MB. Free memory was 73.7 MB in the beginning and 72.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.25 ms. Allocated memory is still 94.4 MB. Free memory was 72.2 MB in the beginning and 71.2 MB in the end (delta: 925.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 451.25 ms. Allocated memory is still 94.4 MB. Free memory was 71.2 MB in the beginning and 59.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 27316.06 ms. Allocated memory was 94.4 MB in the beginning and 343.9 MB in the end (delta: 249.6 MB). Free memory was 59.7 MB in the beginning and 141.9 MB in the end (delta: -82.1 MB). Peak memory consumption was 169.4 MB. Max. memory is 16.1 GB. * Witness Printer took 129.46 ms. Allocated memory is still 343.9 MB. Free memory was 141.9 MB in the beginning and 138.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...