./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a594bbd4-1ec6-42a6-b46f-2fe59f27fc75/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a594bbd4-1ec6-42a6-b46f-2fe59f27fc75/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a594bbd4-1ec6-42a6-b46f-2fe59f27fc75/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a594bbd4-1ec6-42a6-b46f-2fe59f27fc75/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a594bbd4-1ec6-42a6-b46f-2fe59f27fc75/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a594bbd4-1ec6-42a6-b46f-2fe59f27fc75/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ebb74e337af9534aacfcb2a7a413bdbed21e04b2 .............................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:39:38,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:39:38,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:39:38,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:39:38,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:39:38,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:39:38,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:39:38,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:39:38,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:39:38,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:39:38,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:39:38,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:39:38,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:39:38,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:39:38,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:39:38,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:39:38,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:39:38,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:39:38,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:39:38,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:39:38,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:39:38,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:39:38,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:39:38,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:39:38,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:39:38,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:39:38,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:39:38,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:39:38,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:39:38,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:39:38,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:39:38,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:39:38,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:39:38,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:39:38,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:39:38,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:39:38,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:39:38,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:39:38,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:39:38,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:39:38,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:39:38,210 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a594bbd4-1ec6-42a6-b46f-2fe59f27fc75/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:39:38,240 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:39:38,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:39:38,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:39:38,245 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:39:38,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:39:38,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:39:38,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:39:38,246 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:39:38,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:39:38,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:39:38,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:39:38,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:39:38,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:39:38,247 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:39:38,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:39:38,248 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:39:38,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:39:38,249 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:39:38,250 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:39:38,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:39:38,250 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:39:38,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:39:38,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:39:38,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:39:38,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:39:38,252 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:39:38,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:39:38,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:39:38,252 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_a594bbd4-1ec6-42a6-b46f-2fe59f27fc75/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a594bbd4-1ec6-42a6-b46f-2fe59f27fc75/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebb74e337af9534aacfcb2a7a413bdbed21e04b2 [2020-11-28 04:39:38,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:39:38,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:39:38,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:39:38,611 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:39:38,613 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:39:38,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a594bbd4-1ec6-42a6-b46f-2fe59f27fc75/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c [2020-11-28 04:39:38,700 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a594bbd4-1ec6-42a6-b46f-2fe59f27fc75/bin/ukojak/data/52711d8c4/0f2c6cd26d064da396fc2ededbef6729/FLAG96ebc4e92 [2020-11-28 04:39:39,198 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:39:39,199 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a594bbd4-1ec6-42a6-b46f-2fe59f27fc75/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c [2020-11-28 04:39:39,206 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a594bbd4-1ec6-42a6-b46f-2fe59f27fc75/bin/ukojak/data/52711d8c4/0f2c6cd26d064da396fc2ededbef6729/FLAG96ebc4e92 [2020-11-28 04:39:39,582 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a594bbd4-1ec6-42a6-b46f-2fe59f27fc75/bin/ukojak/data/52711d8c4/0f2c6cd26d064da396fc2ededbef6729 [2020-11-28 04:39:39,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:39:39,587 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:39:39,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:39:39,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:39:39,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:39:39,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:39:39" (1/1) ... [2020-11-28 04:39:39,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f6cdd04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:39, skipping insertion in model container [2020-11-28 04:39:39,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:39:39" (1/1) ... [2020-11-28 04:39:39,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:39:39,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:39:39,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:39:39,788 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:39:39,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:39:39,818 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:39:39,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:39 WrapperNode [2020-11-28 04:39:39,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:39:39,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:39:39,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:39:39,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:39:39,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:39" (1/1) ... [2020-11-28 04:39:39,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:39" (1/1) ... [2020-11-28 04:39:39,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:39:39,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:39:39,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:39:39,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:39:39,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:39" (1/1) ... [2020-11-28 04:39:39,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:39" (1/1) ... [2020-11-28 04:39:39,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:39" (1/1) ... [2020-11-28 04:39:39,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:39" (1/1) ... [2020-11-28 04:39:39,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:39" (1/1) ... [2020-11-28 04:39:39,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:39" (1/1) ... [2020-11-28 04:39:39,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:39" (1/1) ... [2020-11-28 04:39:39,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:39:39,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:39:39,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:39:39,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:39:39,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a594bbd4-1ec6-42a6-b46f-2fe59f27fc75/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:39:39,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:39:39,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:39:40,225 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:39:40,226 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 04:39:40,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:40 BoogieIcfgContainer [2020-11-28 04:39:40,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:39:40,229 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:39:40,229 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:39:40,255 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:39:40,255 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:40" (1/1) ... [2020-11-28 04:39:40,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:39:40,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:40,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 20 states and 21 transitions. [2020-11-28 04:39:40,309 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-11-28 04:39:40,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:39:40,311 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:40,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:40,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:40,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2020-11-28 04:39:40,592 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-11-28 04:39:40,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:39:40,592 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:40,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:40,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:40,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 24 states and 29 transitions. [2020-11-28 04:39:40,690 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2020-11-28 04:39:40,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:39:40,690 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:40,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:41,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:41,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 28 states and 39 transitions. [2020-11-28 04:39:41,186 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2020-11-28 04:39:41,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:39:41,186 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:41,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:41,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:41,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 32 states and 49 transitions. [2020-11-28 04:39:41,782 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 49 transitions. [2020-11-28 04:39:41,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:39:41,783 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:41,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:41,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:41,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 31 states and 48 transitions. [2020-11-28 04:39:41,844 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 48 transitions. [2020-11-28 04:39:41,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:39:41,846 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:41,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:42,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:42,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 30 states and 47 transitions. [2020-11-28 04:39:42,080 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2020-11-28 04:39:42,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:39:42,081 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:42,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:42,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:42,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 32 states and 48 transitions. [2020-11-28 04:39:42,159 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 48 transitions. [2020-11-28 04:39:42,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:39:42,160 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:42,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:42,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:42,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 34 states and 52 transitions. [2020-11-28 04:39:42,223 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2020-11-28 04:39:42,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:39:42,223 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:42,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:42,359 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:43,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:43,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 36 states and 55 transitions. [2020-11-28 04:39:43,093 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 55 transitions. [2020-11-28 04:39:43,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:39:43,094 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:43,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:44,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:44,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 41 states and 61 transitions. [2020-11-28 04:39:44,035 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 61 transitions. [2020-11-28 04:39:44,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:39:44,036 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:44,171 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:44,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:44,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 32 states and 47 transitions. [2020-11-28 04:39:44,808 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 47 transitions. [2020-11-28 04:39:44,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:39:44,809 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:44,883 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:45,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:45,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 31 states and 45 transitions. [2020-11-28 04:39:45,351 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2020-11-28 04:39:45,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:39:45,351 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:45,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:45,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:45,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:45,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 31 states and 43 transitions. [2020-11-28 04:39:45,735 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2020-11-28 04:39:45,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:39:45,736 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:45,805 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:46,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:46,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 29 states and 39 transitions. [2020-11-28 04:39:46,563 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-11-28 04:39:46,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:39:46,564 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:46,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:46,584 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:46,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:46,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2020-11-28 04:39:46,871 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2020-11-28 04:39:46,871 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:39:46,872 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 16 iterations. [2020-11-28 04:39:46,879 INFO L765 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2020-11-28 04:39:46,986 INFO L569 CodeCheckObserver]: Invariant with dag size 20 [2020-11-28 04:39:47,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:39:47 ImpRootNode [2020-11-28 04:39:47,007 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:39:47,009 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:39:47,013 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:39:47,014 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:39:47,014 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:40" (3/4) ... [2020-11-28 04:39:47,018 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:39:47,033 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 04:39:47,034 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 04:39:47,034 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:39:47,077 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a594bbd4-1ec6-42a6-b46f-2fe59f27fc75/bin/ukojak/witness.graphml [2020-11-28 04:39:47,077 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:39:47,080 INFO L168 Benchmark]: Toolchain (without parser) took 7492.31 ms. Allocated memory was 111.1 MB in the beginning and 195.0 MB in the end (delta: 83.9 MB). Free memory was 82.4 MB in the beginning and 118.8 MB in the end (delta: -36.4 MB). Peak memory consumption was 46.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:47,081 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 77.6 MB. Free memory was 40.2 MB in the beginning and 40.2 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:39:47,082 INFO L168 Benchmark]: CACSL2BoogieTranslator took 219.18 ms. Allocated memory is still 111.1 MB. Free memory was 82.0 MB in the beginning and 88.9 MB in the end (delta: -6.9 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:47,082 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.24 ms. Allocated memory is still 111.1 MB. Free memory was 88.9 MB in the beginning and 87.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:47,083 INFO L168 Benchmark]: Boogie Preprocessor took 20.66 ms. Allocated memory is still 111.1 MB. Free memory was 87.5 MB in the beginning and 86.8 MB in the end (delta: 762.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:39:47,084 INFO L168 Benchmark]: RCFGBuilder took 313.86 ms. Allocated memory is still 111.1 MB. Free memory was 86.8 MB in the beginning and 75.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:47,085 INFO L168 Benchmark]: CodeCheck took 6778.39 ms. Allocated memory was 111.1 MB in the beginning and 195.0 MB in the end (delta: 83.9 MB). Free memory was 75.3 MB in the beginning and 120.9 MB in the end (delta: -45.6 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:47,086 INFO L168 Benchmark]: Witness Printer took 69.22 ms. Allocated memory is still 195.0 MB. Free memory was 120.9 MB in the beginning and 118.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:47,090 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, 20 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.5s, OverallIterations: 16, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 65536 SDtfs, 109266 SDslu, 0 SDs, 0 SdLazy, 735992 SolverSat, 164326 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1193 GetRequests, 1027 SyntacticMatches, 40 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6985 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 3199 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 10 PerfectInterpolantSequences, 4/22 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: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: 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: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((q + y <= 2147483646 && 2147483647 < y) || (q <= y + 2147483646 && y + 2147483648 < 0)) || ((0 <= y + 2147483648 && q <= 2147483647) && y <= 2147483647) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 77.6 MB. Free memory was 40.2 MB in the beginning and 40.2 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 219.18 ms. Allocated memory is still 111.1 MB. Free memory was 82.0 MB in the beginning and 88.9 MB in the end (delta: -6.9 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.24 ms. Allocated memory is still 111.1 MB. Free memory was 88.9 MB in the beginning and 87.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.66 ms. Allocated memory is still 111.1 MB. Free memory was 87.5 MB in the beginning and 86.8 MB in the end (delta: 762.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 313.86 ms. Allocated memory is still 111.1 MB. Free memory was 86.8 MB in the beginning and 75.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 6778.39 ms. Allocated memory was 111.1 MB in the beginning and 195.0 MB in the end (delta: 83.9 MB). Free memory was 75.3 MB in the beginning and 120.9 MB in the end (delta: -45.6 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. * Witness Printer took 69.22 ms. Allocated memory is still 195.0 MB. Free memory was 120.9 MB in the beginning and 118.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...