./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 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5b3c0776-1bba-4c3c-a6c8-5e86ffdf8854/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5b3c0776-1bba-4c3c-a6c8-5e86ffdf8854/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5b3c0776-1bba-4c3c-a6c8-5e86ffdf8854/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5b3c0776-1bba-4c3c-a6c8-5e86ffdf8854/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_4.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5b3c0776-1bba-4c3c-a6c8-5e86ffdf8854/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5b3c0776-1bba-4c3c-a6c8-5e86ffdf8854/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 9918b49e0d76e4ce36b6a6760021b33460a8ae9b .......................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:09:32,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:09:32,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:09:32,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:09:32,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:09:32,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:09:32,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:09:32,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:09:32,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:09:32,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:09:32,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:09:32,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:09:32,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:09:32,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:09:32,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:09:32,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:09:32,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:09:32,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:09:32,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:09:32,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:09:32,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:09:32,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:09:32,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:09:32,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:09:32,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:09:32,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:09:32,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:09:32,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:09:32,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:09:32,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:09:32,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:09:32,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:09:32,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:09:32,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:09:32,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:09:32,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:09:32,237 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:09:32,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:09:32,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:09:32,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:09:32,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:09:32,239 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5b3c0776-1bba-4c3c-a6c8-5e86ffdf8854/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2019-11-26 02:09:32,251 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:09:32,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:09:32,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:09:32,252 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-26 02:09:32,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:09:32,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:09:32,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:09:32,253 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:09:32,253 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:09:32,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:09:32,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:09:32,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:09:32,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:09:32,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:09:32,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:09:32,254 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-26 02:09:32,254 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:09:32,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:09:32,255 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:09:32,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:09:32,255 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-26 02:09:32,255 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-26 02:09:32,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:09:32,256 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:09:32,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:09:32,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:09:32,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:09:32,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:09:32,256 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-26 02:09:32,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:09:32,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:09:32,257 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5b3c0776-1bba-4c3c-a6c8-5e86ffdf8854/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 -> 9918b49e0d76e4ce36b6a6760021b33460a8ae9b [2019-11-26 02:09:32,390 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:09:32,400 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:09:32,403 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:09:32,404 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:09:32,405 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:09:32,405 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5b3c0776-1bba-4c3c-a6c8-5e86ffdf8854/bin/ukojak/../../sv-benchmarks/c/bitvector/gcd_4.c [2019-11-26 02:09:32,453 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b3c0776-1bba-4c3c-a6c8-5e86ffdf8854/bin/ukojak/data/1c62f6de8/d0d8808a5bf643e8bac1943b86a8b79a/FLAG546f95a46 [2019-11-26 02:09:32,810 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:09:32,810 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5b3c0776-1bba-4c3c-a6c8-5e86ffdf8854/sv-benchmarks/c/bitvector/gcd_4.c [2019-11-26 02:09:32,814 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b3c0776-1bba-4c3c-a6c8-5e86ffdf8854/bin/ukojak/data/1c62f6de8/d0d8808a5bf643e8bac1943b86a8b79a/FLAG546f95a46 [2019-11-26 02:09:32,824 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5b3c0776-1bba-4c3c-a6c8-5e86ffdf8854/bin/ukojak/data/1c62f6de8/d0d8808a5bf643e8bac1943b86a8b79a [2019-11-26 02:09:32,826 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:09:32,827 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:09:32,828 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:09:32,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:09:32,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:09:32,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:09:32" (1/1) ... [2019-11-26 02:09:32,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28508500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:32, skipping insertion in model container [2019-11-26 02:09:32,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:09:32" (1/1) ... [2019-11-26 02:09:32,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:09:32,857 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:09:33,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:09:33,049 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:09:33,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:09:33,156 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:09:33,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:33 WrapperNode [2019-11-26 02:09:33,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:09:33,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:09:33,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:09:33,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:09:33,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:33" (1/1) ... [2019-11-26 02:09:33,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:33" (1/1) ... [2019-11-26 02:09:33,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:09:33,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:09:33,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:09:33,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:09:33,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:33" (1/1) ... [2019-11-26 02:09:33,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:33" (1/1) ... [2019-11-26 02:09:33,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:33" (1/1) ... [2019-11-26 02:09:33,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:33" (1/1) ... [2019-11-26 02:09:33,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:33" (1/1) ... [2019-11-26 02:09:33,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:33" (1/1) ... [2019-11-26 02:09:33,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:33" (1/1) ... [2019-11-26 02:09:33,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:09:33,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:09:33,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:09:33,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:09:33,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5b3c0776-1bba-4c3c-a6c8-5e86ffdf8854/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:09:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:09:33,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:09:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-26 02:09:33,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-26 02:09:33,594 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:09:33,595 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-26 02:09:33,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:09:33 BoogieIcfgContainer [2019-11-26 02:09:33,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:09:33,596 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-26 02:09:33,596 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-26 02:09:33,606 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-26 02:09:33,606 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:09:33" (1/1) ... [2019-11-26 02:09:33,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:09:33,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:33,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2019-11-26 02:09:33,648 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2019-11-26 02:09:33,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-26 02:09:33,649 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:33,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:33,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:09:33,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:33,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2019-11-26 02:09:33,791 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2019-11-26 02:09:33,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-26 02:09:33,792 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:33,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:09:33,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:33,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2019-11-26 02:09:33,930 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-11-26 02:09:33,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:09:33,933 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:33,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:33,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:09:34,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:34,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2019-11-26 02:09:34,195 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2019-11-26 02:09:34,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:09:34,195 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:34,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:09:34,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:34,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2019-11-26 02:09:34,292 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2019-11-26 02:09:34,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-26 02:09:34,293 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:34,347 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:09:34,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:34,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 41 transitions. [2019-11-26 02:09:34,563 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2019-11-26 02:09:34,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-26 02:09:34,563 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:34,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:09:34,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:34,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 32 states and 44 transitions. [2019-11-26 02:09:34,810 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2019-11-26 02:09:34,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-26 02:09:34,810 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:34,830 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:09:34,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:34,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 32 states and 43 transitions. [2019-11-26 02:09:34,942 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2019-11-26 02:09:34,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-26 02:09:34,942 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:34,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:35,025 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:09:35,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:35,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 33 states and 44 transitions. [2019-11-26 02:09:35,180 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2019-11-26 02:09:35,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-26 02:09:35,181 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:35,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:35,250 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:09:35,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:35,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 37 states and 49 transitions. [2019-11-26 02:09:35,582 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2019-11-26 02:09:35,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-26 02:09:35,582 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:35,672 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:09:36,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:36,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 42 states and 55 transitions. [2019-11-26 02:09:36,018 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 55 transitions. [2019-11-26 02:09:36,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-26 02:09:36,019 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:36,062 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-26 02:09:36,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:36,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 43 states and 57 transitions. [2019-11-26 02:09:36,158 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2019-11-26 02:09:36,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-26 02:09:36,159 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:36,250 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-26 02:09:36,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:36,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 46 states and 61 transitions. [2019-11-26 02:09:36,481 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2019-11-26 02:09:36,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-26 02:09:36,482 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:36,614 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:09:37,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:37,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 57 states and 82 transitions. [2019-11-26 02:09:37,319 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2019-11-26 02:09:37,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-26 02:09:37,320 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:37,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:37,379 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:09:37,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:37,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 59 states and 85 transitions. [2019-11-26 02:09:37,534 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 85 transitions. [2019-11-26 02:09:37,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-26 02:09:37,535 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:37,557 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:09:37,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:37,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 61 states and 91 transitions. [2019-11-26 02:09:37,690 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 91 transitions. [2019-11-26 02:09:37,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-26 02:09:37,691 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:37,702 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-11-26 02:09:37,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:37,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 59 states and 85 transitions. [2019-11-26 02:09:37,827 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 85 transitions. [2019-11-26 02:09:37,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-26 02:09:37,828 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:37,858 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-11-26 02:09:37,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:37,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 57 states and 80 transitions. [2019-11-26 02:09:37,992 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 80 transitions. [2019-11-26 02:09:37,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-26 02:09:37,993 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:38,145 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:09:39,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:39,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 64 states and 95 transitions. [2019-11-26 02:09:39,147 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 95 transitions. [2019-11-26 02:09:39,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-26 02:09:39,148 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:39,266 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 8 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:09:39,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:39,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 68 states and 100 transitions. [2019-11-26 02:09:39,580 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2019-11-26 02:09:39,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-26 02:09:39,581 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:39,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:39,736 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:09:40,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:40,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 70 states and 105 transitions. [2019-11-26 02:09:40,313 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 105 transitions. [2019-11-26 02:09:40,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-26 02:09:40,314 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:40,411 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 8 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:09:40,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:40,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 72 states and 108 transitions. [2019-11-26 02:09:40,768 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 108 transitions. [2019-11-26 02:09:40,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-26 02:09:40,769 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:40,932 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:09:41,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:41,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 73 states and 109 transitions. [2019-11-26 02:09:41,183 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 109 transitions. [2019-11-26 02:09:41,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-26 02:09:41,183 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:41,365 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:09:42,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:42,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 77 states and 115 transitions. [2019-11-26 02:09:42,223 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 115 transitions. [2019-11-26 02:09:42,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-26 02:09:42,224 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:42,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:42,480 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:09:42,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:42,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 79 states and 121 transitions. [2019-11-26 02:09:42,931 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 121 transitions. [2019-11-26 02:09:42,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-26 02:09:42,932 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:09:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:42,953 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 3 proven. 75 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:09:43,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:09:43,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 33 states and 34 transitions. [2019-11-26 02:09:43,537 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2019-11-26 02:09:43,538 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:09:43,538 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 26 iterations. [2019-11-26 02:09:43,550 INFO L765 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2019-11-26 02:09:43,701 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-26 02:09:43,705 INFO L569 CodeCheckObserver]: Invariant with dag size 39 [2019-11-26 02:09:43,713 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-26 02:09:43,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.11 02:09:43 ImpRootNode [2019-11-26 02:09:43,713 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-26 02:09:43,714 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:09:43,714 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:09:43,714 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:09:43,715 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:09:33" (3/4) ... [2019-11-26 02:09:43,718 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:09:43,722 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2019-11-26 02:09:43,727 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-26 02:09:43,727 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-26 02:09:43,727 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:09:43,789 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5b3c0776-1bba-4c3c-a6c8-5e86ffdf8854/bin/ukojak/witness.graphml [2019-11-26 02:09:43,790 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:09:43,792 INFO L168 Benchmark]: Toolchain (without parser) took 10963.91 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 244.3 MB). Free memory was 943.4 MB in the beginning and 1.2 GB in the end (delta: -234.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:09:43,793 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:09:43,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 203.9 MB). Free memory was 943.4 MB in the beginning and 1.2 GB in the end (delta: -258.1 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:09:43,795 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:09:43,796 INFO L168 Benchmark]: Boogie Preprocessor took 19.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:09:43,796 INFO L168 Benchmark]: RCFGBuilder took 387.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:09:43,797 INFO L168 Benchmark]: CodeCheck took 10117.26 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 40.4 MB). Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -12.0 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:09:43,797 INFO L168 Benchmark]: Witness Printer took 76.17 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:09:43,800 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 30 locations, 8 error locations. Result: SAFE, OverallTime: 9.9s, OverallIterations: 26, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 67108864 SDtfs, 149970210 SDslu, 33554432 SDs, 0 SdLazy, 634728114 SolverSat, 126243152 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4139 GetRequests, 3611 SyntacticMatches, 334 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21026 ImplicationChecksByTransitivity, 8.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 501 NumberOfCodeBlocks, 501 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 476 ConstructedInterpolants, 0 QuantifiedInterpolants, 75784 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 9 PerfectInterpolantSequences, 157/663 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: 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: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: 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: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (((((a == 63 && b == 18) || ((63 <= b + a && b == 18) && b + a <= 63)) || ((b == 18 && 63 <= 3 * b + a) && 3 * b + a <= 63)) || ((2 * b + a <= 63 && 63 <= 2 * b + a) && b == 18)) || ((b <= 0 && a <= b + 9) && b + 18 <= 2 * a)) || ((b <= a && a + 8 < 2 * b) && b <= 9) - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 329.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 203.9 MB). Free memory was 943.4 MB in the beginning and 1.2 GB in the end (delta: -258.1 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 387.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * CodeCheck took 10117.26 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 40.4 MB). Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -12.0 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * Witness Printer took 76.17 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...