./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/gcd_4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ec7adaf3-a632-4926-a23f-3da178e096c0/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ec7adaf3-a632-4926-a23f-3da178e096c0/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ec7adaf3-a632-4926-a23f-3da178e096c0/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ec7adaf3-a632-4926-a23f-3da178e096c0/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_4.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ec7adaf3-a632-4926-a23f-3da178e096c0/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ec7adaf3-a632-4926-a23f-3da178e096c0/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 9c20edfd7ede05443471560aa2c7be34d4e8c171 .......................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:37:48,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:37:48,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:37:48,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:37:48,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:37:48,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:37:48,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:37:48,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:37:48,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:37:48,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:37:48,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:37:48,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:37:48,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:37:48,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:37:48,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:37:48,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:37:48,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:37:48,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:37:48,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:37:48,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:37:48,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:37:48,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:37:48,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:37:48,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:37:48,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:37:48,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:37:48,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:37:48,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:37:48,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:37:48,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:37:48,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:37:48,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:37:48,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:37:48,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:37:48,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:37:48,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:37:48,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:37:48,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:37:48,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:37:48,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:37:48,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:37:48,186 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ec7adaf3-a632-4926-a23f-3da178e096c0/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2020-11-28 04:37:48,213 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:37:48,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:37:48,214 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:37:48,215 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:37:48,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:37:48,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:37:48,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:37:48,216 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:37:48,217 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:37:48,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:37:48,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:37:48,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:37:48,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:37:48,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:37:48,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:37:48,218 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:37:48,219 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:37:48,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:37:48,219 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:37:48,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:37:48,220 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:37:48,220 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:37:48,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:37:48,221 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:37:48,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:37:48,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:37:48,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:37:48,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:37:48,222 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:37:48,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:37:48,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:37:48,226 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_ec7adaf3-a632-4926-a23f-3da178e096c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ec7adaf3-a632-4926-a23f-3da178e096c0/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c20edfd7ede05443471560aa2c7be34d4e8c171 [2020-11-28 04:37:48,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:37:48,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:37:48,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:37:48,562 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:37:48,568 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:37:48,570 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ec7adaf3-a632-4926-a23f-3da178e096c0/bin/ukojak/../../sv-benchmarks/c/bitvector/gcd_4.c [2020-11-28 04:37:48,644 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec7adaf3-a632-4926-a23f-3da178e096c0/bin/ukojak/data/87b7dead3/5b864641723f42ccaa3ec6394a003008/FLAGab2830183 [2020-11-28 04:37:49,217 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:37:49,217 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ec7adaf3-a632-4926-a23f-3da178e096c0/sv-benchmarks/c/bitvector/gcd_4.c [2020-11-28 04:37:49,229 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec7adaf3-a632-4926-a23f-3da178e096c0/bin/ukojak/data/87b7dead3/5b864641723f42ccaa3ec6394a003008/FLAGab2830183 [2020-11-28 04:37:49,578 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ec7adaf3-a632-4926-a23f-3da178e096c0/bin/ukojak/data/87b7dead3/5b864641723f42ccaa3ec6394a003008 [2020-11-28 04:37:49,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:37:49,585 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:37:49,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:37:49,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:37:49,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:37:49,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:37:49" (1/1) ... [2020-11-28 04:37:49,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41abaff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49, skipping insertion in model container [2020-11-28 04:37:49,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:37:49" (1/1) ... [2020-11-28 04:37:49,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:37:49,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:37:49,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:37:49,816 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:37:49,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:37:49,876 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:37:49,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49 WrapperNode [2020-11-28 04:37:49,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:37:49,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:37:49,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:37:49,883 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:37:49,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49" (1/1) ... [2020-11-28 04:37:49,898 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49" (1/1) ... [2020-11-28 04:37:49,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:37:49,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:37:49,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:37:49,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:37:49,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49" (1/1) ... [2020-11-28 04:37:49,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49" (1/1) ... [2020-11-28 04:37:49,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49" (1/1) ... [2020-11-28 04:37:49,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49" (1/1) ... [2020-11-28 04:37:49,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49" (1/1) ... [2020-11-28 04:37:49,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49" (1/1) ... [2020-11-28 04:37:49,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49" (1/1) ... [2020-11-28 04:37:49,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:37:49,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:37:49,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:37:49,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:37:49,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec7adaf3-a632-4926-a23f-3da178e096c0/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 [2020-11-28 04:37:50,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:37:50,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:37:50,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:37:50,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:37:50,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-28 04:37:50,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-28 04:37:50,543 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:37:50,543 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 04:37:50,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:50 BoogieIcfgContainer [2020-11-28 04:37:50,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:37:50,546 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:37:50,546 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:37:50,556 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:37:50,557 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:50" (1/1) ... [2020-11-28 04:37:50,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:37:50,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:50,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2020-11-28 04:37:50,601 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2020-11-28 04:37:50,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:37:50,603 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:50,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:50,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:37:50,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:50,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2020-11-28 04:37:50,777 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2020-11-28 04:37:50,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:37:50,777 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:50,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:50,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:37:50,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:50,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2020-11-28 04:37:50,980 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2020-11-28 04:37:50,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:37:50,984 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:51,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:51,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:37:51,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:51,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2020-11-28 04:37:51,218 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2020-11-28 04:37:51,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:37:51,218 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:51,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:51,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:37:51,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:51,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2020-11-28 04:37:51,353 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2020-11-28 04:37:51,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:37:51,354 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:51,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:51,427 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:37:51,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:51,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 41 transitions. [2020-11-28 04:37:51,656 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2020-11-28 04:37:51,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:37:51,656 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:51,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:37:51,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:51,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 32 states and 44 transitions. [2020-11-28 04:37:51,944 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2020-11-28 04:37:51,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:37:51,945 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:51,993 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:37:52,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:52,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 32 states and 43 transitions. [2020-11-28 04:37:52,108 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2020-11-28 04:37:52,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:37:52,109 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:52,174 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:37:52,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:52,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 33 states and 44 transitions. [2020-11-28 04:37:52,338 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2020-11-28 04:37:52,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:37:52,338 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:52,444 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:37:52,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:52,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 36 states and 48 transitions. [2020-11-28 04:37:52,692 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 48 transitions. [2020-11-28 04:37:52,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 04:37:52,694 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:52,723 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-28 04:37:52,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:52,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 37 states and 50 transitions. [2020-11-28 04:37:52,890 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions. [2020-11-28 04:37:52,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:37:52,891 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:52,986 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:37:53,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:53,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 39 states and 53 transitions. [2020-11-28 04:37:53,256 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2020-11-28 04:37:53,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:37:53,257 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:53,342 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:37:53,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:53,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 43 states and 58 transitions. [2020-11-28 04:37:53,795 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2020-11-28 04:37:53,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:37:53,796 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:53,886 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-28 04:37:54,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:54,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 46 states and 66 transitions. [2020-11-28 04:37:54,106 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 66 transitions. [2020-11-28 04:37:54,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:37:54,107 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:54,210 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:37:54,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:54,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 49 states and 75 transitions. [2020-11-28 04:37:54,531 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 75 transitions. [2020-11-28 04:37:54,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 04:37:54,532 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:54,582 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-11-28 04:37:54,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:54,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 47 states and 69 transitions. [2020-11-28 04:37:54,749 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 69 transitions. [2020-11-28 04:37:54,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 04:37:54,750 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:54,774 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-11-28 04:37:54,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:54,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 45 states and 64 transitions. [2020-11-28 04:37:54,959 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2020-11-28 04:37:54,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 04:37:54,960 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:55,205 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 8 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:37:56,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:56,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 57 states and 84 transitions. [2020-11-28 04:37:56,769 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 84 transitions. [2020-11-28 04:37:56,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 04:37:56,770 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:56,817 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 25 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:37:57,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:57,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 59 states and 87 transitions. [2020-11-28 04:37:57,018 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 87 transitions. [2020-11-28 04:37:57,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 04:37:57,019 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:57,237 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:37:58,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:58,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 69 states and 105 transitions. [2020-11-28 04:37:58,734 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 105 transitions. [2020-11-28 04:37:58,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 04:37:58,735 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:58,903 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 8 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:37:59,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:59,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 73 states and 116 transitions. [2020-11-28 04:37:59,861 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 116 transitions. [2020-11-28 04:37:59,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 04:37:59,862 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:59,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:59,893 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 8 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:00,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:00,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 74 states and 116 transitions. [2020-11-28 04:38:00,141 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 116 transitions. [2020-11-28 04:38:00,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 04:38:00,141 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:00,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:00,167 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:00,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:00,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 75 states and 116 transitions. [2020-11-28 04:38:00,417 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 116 transitions. [2020-11-28 04:38:00,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 04:38:00,418 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:00,685 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 4 proven. 54 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:38:01,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:01,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 81 states and 132 transitions. [2020-11-28 04:38:01,951 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 132 transitions. [2020-11-28 04:38:01,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 04:38:01,952 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:02,198 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-28 04:38:02,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:02,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 83 states and 134 transitions. [2020-11-28 04:38:02,658 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 134 transitions. [2020-11-28 04:38:02,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 04:38:02,658 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:02,683 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 18 proven. 38 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:38:03,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:03,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 85 states and 139 transitions. [2020-11-28 04:38:03,103 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 139 transitions. [2020-11-28 04:38:03,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-28 04:38:03,104 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:03,347 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 4 proven. 68 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-28 04:38:04,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:04,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 33 states and 34 transitions. [2020-11-28 04:38:04,300 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-11-28 04:38:04,300 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:38:04,300 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 27 iterations. [2020-11-28 04:38:04,307 INFO L765 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2020-11-28 04:38:04,464 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:38:04,471 INFO L569 CodeCheckObserver]: Invariant with dag size 35 [2020-11-28 04:38:04,484 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:38:04,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:38:04 ImpRootNode [2020-11-28 04:38:04,484 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:38:04,485 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:38:04,485 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:38:04,486 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:38:04,486 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:50" (3/4) ... [2020-11-28 04:38:04,489 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:38:04,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-11-28 04:38:04,500 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-28 04:38:04,500 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 04:38:04,501 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:38:04,501 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:38:04,549 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ec7adaf3-a632-4926-a23f-3da178e096c0/bin/ukojak/witness.graphml [2020-11-28 04:38:04,549 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:38:04,551 INFO L168 Benchmark]: Toolchain (without parser) took 14965.34 ms. Allocated memory was 100.7 MB in the beginning and 218.1 MB in the end (delta: 117.4 MB). Free memory was 77.4 MB in the beginning and 132.8 MB in the end (delta: -55.4 MB). Peak memory consumption was 61.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:04,560 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 100.7 MB. Free memory was 64.5 MB in the beginning and 64.4 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:38:04,561 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.86 ms. Allocated memory is still 100.7 MB. Free memory was 77.2 MB in the beginning and 78.2 MB in the end (delta: -1.0 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:04,561 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.02 ms. Allocated memory is still 100.7 MB. Free memory was 78.2 MB in the beginning and 76.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:04,562 INFO L168 Benchmark]: Boogie Preprocessor took 35.09 ms. Allocated memory is still 100.7 MB. Free memory was 76.6 MB in the beginning and 75.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:38:04,563 INFO L168 Benchmark]: RCFGBuilder took 583.77 ms. Allocated memory is still 100.7 MB. Free memory was 75.4 MB in the beginning and 56.9 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:04,563 INFO L168 Benchmark]: CodeCheck took 13938.60 ms. Allocated memory was 100.7 MB in the beginning and 218.1 MB in the end (delta: 117.4 MB). Free memory was 56.9 MB in the beginning and 134.9 MB in the end (delta: -77.9 MB). Peak memory consumption was 41.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:04,564 INFO L168 Benchmark]: Witness Printer took 64.12 ms. Allocated memory is still 218.1 MB. Free memory was 134.9 MB in the beginning and 132.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:04,567 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 2 procedures, 30 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.7s, OverallIterations: 27, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 134217728 SDtfs, 298337020 SDslu, 67108864 SDs, 0 SdLazy, 1264867056 SolverSat, 251921672 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4428 GetRequests, 3905 SyntacticMatches, 311 SemanticMatches, 212 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24126 ImplicationChecksByTransitivity, 11.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 524 NumberOfCodeBlocks, 524 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 498 ConstructedInterpolants, 0 QuantifiedInterpolants, 72464 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 9 PerfectInterpolantSequences, 229/688 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: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: 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: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: ((((((b + a <= 63 && 63 <= b + a) && b == 18) || ((b + 9 <= a && a <= 2 * b + 9) && a <= 9)) || (a == 63 && b == 18)) || ((63 <= 2 * b + a && 2 * b + a <= 63) && b == 18)) || ((3 * b + a <= 63 && 63 <= 3 * b + a) && b == 18)) || ((a <= b && b + 9 <= 2 * a) && a <= 9) - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 100.7 MB. Free memory was 64.5 MB in the beginning and 64.4 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 288.86 ms. Allocated memory is still 100.7 MB. Free memory was 77.2 MB in the beginning and 78.2 MB in the end (delta: -1.0 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.02 ms. Allocated memory is still 100.7 MB. Free memory was 78.2 MB in the beginning and 76.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.09 ms. Allocated memory is still 100.7 MB. Free memory was 76.6 MB in the beginning and 75.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 583.77 ms. Allocated memory is still 100.7 MB. Free memory was 75.4 MB in the beginning and 56.9 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * CodeCheck took 13938.60 ms. Allocated memory was 100.7 MB in the beginning and 218.1 MB in the end (delta: 117.4 MB). Free memory was 56.9 MB in the beginning and 134.9 MB in the end (delta: -77.9 MB). Peak memory consumption was 41.7 MB. Max. memory is 16.1 GB. * Witness Printer took 64.12 ms. Allocated memory is still 218.1 MB. Free memory was 134.9 MB in the beginning and 132.8 MB in the end (delta: 2.1 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...