./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/gcd_2.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_c131cb23-db5e-4b9c-a078-8dbf13ecb0a4/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c131cb23-db5e-4b9c-a078-8dbf13ecb0a4/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c131cb23-db5e-4b9c-a078-8dbf13ecb0a4/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c131cb23-db5e-4b9c-a078-8dbf13ecb0a4/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c131cb23-db5e-4b9c-a078-8dbf13ecb0a4/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c131cb23-db5e-4b9c-a078-8dbf13ecb0a4/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 09113822ff1f24d8cc0fc226021f8d226800fb83 ...................................................................................................................................................................................................................................................... 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 11:00:00,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 11:00:00,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 11:00:01,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 11:00:01,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 11:00:01,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 11:00:01,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 11:00:01,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 11:00:01,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 11:00:01,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 11:00:01,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 11:00:01,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 11:00:01,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 11:00:01,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 11:00:01,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 11:00:01,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 11:00:01,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 11:00:01,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 11:00:01,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 11:00:01,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 11:00:01,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 11:00:01,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 11:00:01,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 11:00:01,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 11:00:01,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 11:00:01,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 11:00:01,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 11:00:01,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 11:00:01,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 11:00:01,107 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 11:00:01,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 11:00:01,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 11:00:01,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 11:00:01,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 11:00:01,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 11:00:01,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 11:00:01,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 11:00:01,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 11:00:01,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 11:00:01,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 11:00:01,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 11:00:01,122 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c131cb23-db5e-4b9c-a078-8dbf13ecb0a4/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2020-12-03 11:00:01,171 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 11:00:01,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 11:00:01,173 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 11:00:01,173 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-03 11:00:01,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 11:00:01,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 11:00:01,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 11:00:01,175 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 11:00:01,175 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 11:00:01,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 11:00:01,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 11:00:01,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 11:00:01,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 11:00:01,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 11:00:01,177 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 11:00:01,178 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-03 11:00:01,178 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 11:00:01,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 11:00:01,178 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 11:00:01,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 11:00:01,179 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-03 11:00:01,179 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-03 11:00:01,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 11:00:01,179 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-03 11:00:01,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-03 11:00:01,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 11:00:01,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 11:00:01,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 11:00:01,180 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-03 11:00:01,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 11:00:01,183 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 11:00:01,183 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_c131cb23-db5e-4b9c-a078-8dbf13ecb0a4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c131cb23-db5e-4b9c-a078-8dbf13ecb0a4/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09113822ff1f24d8cc0fc226021f8d226800fb83 [2020-12-03 11:00:01,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 11:00:01,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 11:00:01,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 11:00:01,527 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 11:00:01,528 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 11:00:01,529 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c131cb23-db5e-4b9c-a078-8dbf13ecb0a4/bin/ukojak/../../sv-benchmarks/c/bitvector/gcd_2.c [2020-12-03 11:00:01,596 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c131cb23-db5e-4b9c-a078-8dbf13ecb0a4/bin/ukojak/data/d74c9c996/7b0ca53687d346a8b24e940f3870afab/FLAG410064844 [2020-12-03 11:00:02,095 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 11:00:02,096 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c131cb23-db5e-4b9c-a078-8dbf13ecb0a4/sv-benchmarks/c/bitvector/gcd_2.c [2020-12-03 11:00:02,103 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c131cb23-db5e-4b9c-a078-8dbf13ecb0a4/bin/ukojak/data/d74c9c996/7b0ca53687d346a8b24e940f3870afab/FLAG410064844 [2020-12-03 11:00:02,463 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c131cb23-db5e-4b9c-a078-8dbf13ecb0a4/bin/ukojak/data/d74c9c996/7b0ca53687d346a8b24e940f3870afab [2020-12-03 11:00:02,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 11:00:02,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 11:00:02,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 11:00:02,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 11:00:02,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 11:00:02,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 11:00:02" (1/1) ... [2020-12-03 11:00:02,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24f7e08c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:02, skipping insertion in model container [2020-12-03 11:00:02,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 11:00:02" (1/1) ... [2020-12-03 11:00:02,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 11:00:02,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 11:00:02,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 11:00:02,691 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 11:00:02,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 11:00:02,725 INFO L208 MainTranslator]: Completed translation [2020-12-03 11:00:02,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:02 WrapperNode [2020-12-03 11:00:02,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 11:00:02,728 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 11:00:02,728 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 11:00:02,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 11:00:02,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:02" (1/1) ... [2020-12-03 11:00:02,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:02" (1/1) ... [2020-12-03 11:00:02,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 11:00:02,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 11:00:02,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 11:00:02,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 11:00:02,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:02" (1/1) ... [2020-12-03 11:00:02,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:02" (1/1) ... [2020-12-03 11:00:02,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:02" (1/1) ... [2020-12-03 11:00:02,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:02" (1/1) ... [2020-12-03 11:00:02,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:02" (1/1) ... [2020-12-03 11:00:02,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:02" (1/1) ... [2020-12-03 11:00:02,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:02" (1/1) ... [2020-12-03 11:00:02,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 11:00:02,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 11:00:02,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 11:00:02,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 11:00:02,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c131cb23-db5e-4b9c-a078-8dbf13ecb0a4/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 11:00:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 11:00:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 11:00:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 11:00:02,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 11:00:03,222 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 11:00:03,222 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-12-03 11:00:03,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:00:03 BoogieIcfgContainer [2020-12-03 11:00:03,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 11:00:03,226 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-03 11:00:03,226 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-03 11:00:03,237 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-03 11:00:03,238 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:00:03" (1/1) ... [2020-12-03 11:00:03,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 11:00:03,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:00:03,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2020-12-03 11:00:03,283 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-12-03 11:00:03,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-03 11:00:03,292 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:00:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:00:03,456 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 11:00:03,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:00:03,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-12-03 11:00:03,495 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-12-03 11:00:03,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-03 11:00:03,496 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:00:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:00:03,539 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 11:00:03,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:00:03,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2020-12-03 11:00:03,617 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-12-03 11:00:03,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-03 11:00:03,618 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:00:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:00:03,681 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 11:00:03,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:00:03,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2020-12-03 11:00:03,787 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-12-03 11:00:03,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-03 11:00:03,788 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:00:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:00:03,846 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 11:00:03,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:00:03,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2020-12-03 11:00:03,918 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2020-12-03 11:00:03,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 11:00:03,919 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:00:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:00:03,987 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 11:00:04,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:00:04,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-12-03 11:00:04,174 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-12-03 11:00:04,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 11:00:04,174 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2020-12-03 11:00:04,181 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-12-03 11:00:04,213 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-03 11:00:04,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 11:00:04 ImpRootNode [2020-12-03 11:00:04,218 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-03 11:00:04,219 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 11:00:04,219 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 11:00:04,220 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 11:00:04,221 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:00:03" (3/4) ... [2020-12-03 11:00:04,224 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 11:00:04,239 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-12-03 11:00:04,240 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-03 11:00:04,240 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-03 11:00:04,241 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 11:00:04,286 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c131cb23-db5e-4b9c-a078-8dbf13ecb0a4/bin/ukojak/witness.graphml [2020-12-03 11:00:04,286 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 11:00:04,288 INFO L168 Benchmark]: Toolchain (without parser) took 1820.15 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 62.2 MB in the beginning and 82.7 MB in the end (delta: -20.4 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-12-03 11:00:04,289 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 92.3 MB. Free memory is still 51.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:00:04,290 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.55 ms. Allocated memory is still 92.3 MB. Free memory was 62.0 MB in the beginning and 70.5 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 11:00:04,290 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.59 ms. Allocated memory is still 92.3 MB. Free memory was 70.5 MB in the beginning and 68.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 11:00:04,291 INFO L168 Benchmark]: Boogie Preprocessor took 22.48 ms. Allocated memory is still 92.3 MB. Free memory was 68.9 MB in the beginning and 68.0 MB in the end (delta: 957.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:00:04,292 INFO L168 Benchmark]: RCFGBuilder took 435.88 ms. Allocated memory is still 92.3 MB. Free memory was 68.0 MB in the beginning and 48.7 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-03 11:00:04,293 INFO L168 Benchmark]: CodeCheck took 991.96 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 48.4 MB in the beginning and 84.8 MB in the end (delta: -36.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:00:04,293 INFO L168 Benchmark]: Witness Printer took 66.84 ms. Allocated memory is still 117.4 MB. Free memory was 84.8 MB in the beginning and 82.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 11:00:04,297 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: 0.9s, 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, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 134 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s 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 0.27 ms. Allocated memory is still 92.3 MB. Free memory is still 51.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 258.55 ms. Allocated memory is still 92.3 MB. Free memory was 62.0 MB in the beginning and 70.5 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.59 ms. Allocated memory is still 92.3 MB. Free memory was 70.5 MB in the beginning and 68.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.48 ms. Allocated memory is still 92.3 MB. Free memory was 68.9 MB in the beginning and 68.0 MB in the end (delta: 957.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 435.88 ms. Allocated memory is still 92.3 MB. Free memory was 68.0 MB in the beginning and 48.7 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * CodeCheck took 991.96 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 48.4 MB in the beginning and 84.8 MB in the end (delta: -36.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 66.84 ms. Allocated memory is still 117.4 MB. Free memory was 84.8 MB in the beginning and 82.7 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...