./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/gcd_3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5396f438-d4ea-4501-b1e0-88b47b49b28d/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5396f438-d4ea-4501-b1e0-88b47b49b28d/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5396f438-d4ea-4501-b1e0-88b47b49b28d/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5396f438-d4ea-4501-b1e0-88b47b49b28d/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5396f438-d4ea-4501-b1e0-88b47b49b28d/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5396f438-d4ea-4501-b1e0-88b47b49b28d/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 46c6e353922721c0838b7fb617ab086256b6c516 ...................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-03 11:03:27,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 11:03:27,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 11:03:28,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 11:03:28,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 11:03:28,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 11:03:28,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 11:03:28,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 11:03:28,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 11:03:28,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 11:03:28,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 11:03:28,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 11:03:28,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 11:03:28,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 11:03:28,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 11:03:28,053 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 11:03:28,054 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 11:03:28,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 11:03:28,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 11:03:28,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 11:03:28,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 11:03:28,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 11:03:28,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 11:03:28,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 11:03:28,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 11:03:28,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 11:03:28,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 11:03:28,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 11:03:28,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 11:03:28,083 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 11:03:28,084 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 11:03:28,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 11:03:28,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 11:03:28,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 11:03:28,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 11:03:28,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 11:03:28,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 11:03:28,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 11:03:28,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 11:03:28,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 11:03:28,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 11:03:28,093 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5396f438-d4ea-4501-b1e0-88b47b49b28d/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2020-12-03 11:03:28,118 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 11:03:28,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 11:03:28,119 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 11:03:28,120 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-03 11:03:28,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 11:03:28,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 11:03:28,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 11:03:28,122 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 11:03:28,122 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 11:03:28,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 11:03:28,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 11:03:28,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 11:03:28,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 11:03:28,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 11:03:28,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 11:03:28,124 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-03 11:03:28,125 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 11:03:28,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 11:03:28,125 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 11:03:28,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 11:03:28,126 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-03 11:03:28,126 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-03 11:03:28,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 11:03:28,127 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-03 11:03:28,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-03 11:03:28,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 11:03:28,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 11:03:28,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 11:03:28,129 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-03 11:03:28,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 11:03:28,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 11:03:28,129 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_5396f438-d4ea-4501-b1e0-88b47b49b28d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5396f438-d4ea-4501-b1e0-88b47b49b28d/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46c6e353922721c0838b7fb617ab086256b6c516 [2020-12-03 11:03:28,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 11:03:28,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 11:03:28,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 11:03:28,413 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 11:03:28,414 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 11:03:28,415 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5396f438-d4ea-4501-b1e0-88b47b49b28d/bin/ukojak/../../sv-benchmarks/c/bitvector/gcd_3.c [2020-12-03 11:03:28,502 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5396f438-d4ea-4501-b1e0-88b47b49b28d/bin/ukojak/data/2bcfe3c70/64673c722d4e44f9826c5969c5514a65/FLAGdfcf28eb1 [2020-12-03 11:03:29,057 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 11:03:29,058 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5396f438-d4ea-4501-b1e0-88b47b49b28d/sv-benchmarks/c/bitvector/gcd_3.c [2020-12-03 11:03:29,069 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5396f438-d4ea-4501-b1e0-88b47b49b28d/bin/ukojak/data/2bcfe3c70/64673c722d4e44f9826c5969c5514a65/FLAGdfcf28eb1 [2020-12-03 11:03:29,422 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5396f438-d4ea-4501-b1e0-88b47b49b28d/bin/ukojak/data/2bcfe3c70/64673c722d4e44f9826c5969c5514a65 [2020-12-03 11:03:29,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 11:03:29,429 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 11:03:29,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 11:03:29,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 11:03:29,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 11:03:29,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 11:03:29" (1/1) ... [2020-12-03 11:03:29,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@797af7bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:03:29, skipping insertion in model container [2020-12-03 11:03:29,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 11:03:29" (1/1) ... [2020-12-03 11:03:29,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 11:03:29,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 11:03:29,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 11:03:29,698 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 11:03:29,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 11:03:29,752 INFO L208 MainTranslator]: Completed translation [2020-12-03 11:03:29,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:03:29 WrapperNode [2020-12-03 11:03:29,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 11:03:29,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 11:03:29,759 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 11:03:29,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 11:03:29,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:03:29" (1/1) ... [2020-12-03 11:03:29,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:03:29" (1/1) ... [2020-12-03 11:03:29,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 11:03:29,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 11:03:29,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 11:03:29,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 11:03:29,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:03:29" (1/1) ... [2020-12-03 11:03:29,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:03:29" (1/1) ... [2020-12-03 11:03:29,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:03:29" (1/1) ... [2020-12-03 11:03:29,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:03:29" (1/1) ... [2020-12-03 11:03:29,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:03:29" (1/1) ... [2020-12-03 11:03:29,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:03:29" (1/1) ... [2020-12-03 11:03:29,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:03:29" (1/1) ... [2020-12-03 11:03:29,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 11:03:29,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 11:03:29,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 11:03:29,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 11:03:29,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:03:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5396f438-d4ea-4501-b1e0-88b47b49b28d/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 [2020-12-03 11:03:29,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 11:03:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 11:03:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 11:03:29,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 11:03:30,269 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 11:03:30,270 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-12-03 11:03:30,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:03:30 BoogieIcfgContainer [2020-12-03 11:03:30,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 11:03:30,273 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-03 11:03:30,273 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-03 11:03:30,285 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-03 11:03:30,285 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:03:30" (1/1) ... [2020-12-03 11:03:30,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 11:03:30,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:03:30,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2020-12-03 11:03:30,383 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-12-03 11:03:30,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-03 11:03:30,391 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:03:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:03:30,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:03:30,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:03:30,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-12-03 11:03:30,705 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-12-03 11:03:30,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-03 11:03:30,706 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:03:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:03:30,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:03:30,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:03:30,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2020-12-03 11:03:30,905 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-12-03 11:03:30,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-03 11:03:30,905 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:03:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:03:30,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:03:31,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:03:31,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2020-12-03 11:03:31,159 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-12-03 11:03:31,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-03 11:03:31,160 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:03:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:03:31,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:03:31,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:03:31,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2020-12-03 11:03:31,258 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2020-12-03 11:03:31,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 11:03:31,258 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:03:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:03:31,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:03:31,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:03:31,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-12-03 11:03:31,452 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-12-03 11:03:31,452 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 11:03:31,452 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2020-12-03 11:03:31,459 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-12-03 11:03:31,487 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-03 11:03:31,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 11:03:31 ImpRootNode [2020-12-03 11:03:31,491 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-03 11:03:31,492 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 11:03:31,492 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 11:03:31,492 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 11:03:31,493 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:03:30" (3/4) ... [2020-12-03 11:03:31,496 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 11:03:31,507 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-12-03 11:03:31,507 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-03 11:03:31,508 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-03 11:03:31,508 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 11:03:31,557 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5396f438-d4ea-4501-b1e0-88b47b49b28d/bin/ukojak/witness.graphml [2020-12-03 11:03:31,558 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 11:03:31,560 INFO L168 Benchmark]: Toolchain (without parser) took 2129.85 ms. Allocated memory was 136.3 MB in the beginning and 180.4 MB in the end (delta: 44.0 MB). Free memory was 104.3 MB in the beginning and 96.8 MB in the end (delta: 7.4 MB). Peak memory consumption was 50.5 MB. Max. memory is 16.1 GB. [2020-12-03 11:03:31,560 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 77.6 MB. Free memory was 38.4 MB in the beginning and 38.3 MB in the end (delta: 35.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:03:31,561 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.02 ms. Allocated memory is still 136.3 MB. Free memory was 104.0 MB in the beginning and 111.3 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 11:03:31,562 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.62 ms. Allocated memory is still 136.3 MB. Free memory was 111.3 MB in the beginning and 109.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 11:03:31,562 INFO L168 Benchmark]: Boogie Preprocessor took 20.54 ms. Allocated memory is still 136.3 MB. Free memory was 109.7 MB in the beginning and 108.8 MB in the end (delta: 869.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:03:31,563 INFO L168 Benchmark]: RCFGBuilder took 441.35 ms. Allocated memory is still 136.3 MB. Free memory was 108.8 MB in the beginning and 89.5 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-03 11:03:31,563 INFO L168 Benchmark]: CodeCheck took 1218.48 ms. Allocated memory was 136.3 MB in the beginning and 180.4 MB in the end (delta: 44.0 MB). Free memory was 89.5 MB in the beginning and 99.9 MB in the end (delta: -10.4 MB). Peak memory consumption was 36.5 MB. Max. memory is 16.1 GB. [2020-12-03 11:03:31,564 INFO L168 Benchmark]: Witness Printer took 65.76 ms. Allocated memory is still 180.4 MB. Free memory was 99.9 MB in the beginning and 96.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 11:03:31,567 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 1 procedures, 13 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 132 SDslu, 0 SDs, 0 SdLazy, 496 SolverSat, 116 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 134 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 271 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 77.6 MB. Free memory was 38.4 MB in the beginning and 38.3 MB in the end (delta: 35.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 321.02 ms. Allocated memory is still 136.3 MB. Free memory was 104.0 MB in the beginning and 111.3 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.62 ms. Allocated memory is still 136.3 MB. Free memory was 111.3 MB in the beginning and 109.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.54 ms. Allocated memory is still 136.3 MB. Free memory was 109.7 MB in the beginning and 108.8 MB in the end (delta: 869.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 441.35 ms. Allocated memory is still 136.3 MB. Free memory was 108.8 MB in the beginning and 89.5 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * CodeCheck took 1218.48 ms. Allocated memory was 136.3 MB in the beginning and 180.4 MB in the end (delta: 44.0 MB). Free memory was 89.5 MB in the beginning and 99.9 MB in the end (delta: -10.4 MB). Peak memory consumption was 36.5 MB. Max. memory is 16.1 GB. * Witness Printer took 65.76 ms. Allocated memory is still 180.4 MB. Free memory was 99.9 MB in the beginning and 96.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...