./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Cairo.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_c83448f1-42b7-4259-af0c-c6f9cdb6c6b0/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c83448f1-42b7-4259-af0c-c6f9cdb6c6b0/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c83448f1-42b7-4259-af0c-c6f9cdb6c6b0/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c83448f1-42b7-4259-af0c-c6f9cdb6c6b0/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Cairo.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c83448f1-42b7-4259-af0c-c6f9cdb6c6b0/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c83448f1-42b7-4259-af0c-c6f9cdb6c6b0/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 4ee0473dc6d7092e83742edafdde9370f3b93e25 ........................................................................................................................................................................................................................................ 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 04:43:06,021 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:43:06,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:43:06,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:43:06,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:43:06,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:43:06,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:43:06,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:43:06,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:43:06,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:43:06,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:43:06,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:43:06,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:43:06,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:43:06,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:43:06,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:43:06,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:43:06,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:43:06,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:43:06,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:43:06,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:43:06,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:43:06,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:43:06,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:43:06,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:43:06,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:43:06,146 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:43:06,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:43:06,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:43:06,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:43:06,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:43:06,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:43:06,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:43:06,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:43:06,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:43:06,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:43:06,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:43:06,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:43:06,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:43:06,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:43:06,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:43:06,168 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c83448f1-42b7-4259-af0c-c6f9cdb6c6b0/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:43:06,219 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:43:06,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:43:06,221 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:43:06,222 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:43:06,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:43:06,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:43:06,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:43:06,223 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:43:06,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:43:06,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:43:06,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:43:06,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:43:06,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:43:06,226 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:43:06,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:43:06,227 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:43:06,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:43:06,227 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:43:06,228 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:43:06,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:43:06,229 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:43:06,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:43:06,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:43:06,230 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:43:06,230 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:43:06,230 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:43:06,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:43:06,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:43:06,231 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_c83448f1-42b7-4259-af0c-c6f9cdb6c6b0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c83448f1-42b7-4259-af0c-c6f9cdb6c6b0/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ee0473dc6d7092e83742edafdde9370f3b93e25 [2020-11-28 04:43:06,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:43:06,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:43:06,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:43:06,588 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:43:06,589 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:43:06,590 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c83448f1-42b7-4259-af0c-c6f9cdb6c6b0/bin/ukojak/../../sv-benchmarks/c/termination-crafted/Cairo.c [2020-11-28 04:43:06,680 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c83448f1-42b7-4259-af0c-c6f9cdb6c6b0/bin/ukojak/data/bed0c818c/b6dca64c022b4088b75a1c17d9b8492d/FLAGe78365cd0 [2020-11-28 04:43:07,194 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:43:07,195 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c83448f1-42b7-4259-af0c-c6f9cdb6c6b0/sv-benchmarks/c/termination-crafted/Cairo.c [2020-11-28 04:43:07,201 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c83448f1-42b7-4259-af0c-c6f9cdb6c6b0/bin/ukojak/data/bed0c818c/b6dca64c022b4088b75a1c17d9b8492d/FLAGe78365cd0 [2020-11-28 04:43:07,572 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c83448f1-42b7-4259-af0c-c6f9cdb6c6b0/bin/ukojak/data/bed0c818c/b6dca64c022b4088b75a1c17d9b8492d [2020-11-28 04:43:07,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:43:07,577 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:43:07,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:07,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:43:07,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:43:07,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:07" (1/1) ... [2020-11-28 04:43:07,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b081b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:07, skipping insertion in model container [2020-11-28 04:43:07,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:07" (1/1) ... [2020-11-28 04:43:07,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:43:07,609 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:43:07,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:07,789 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:43:07,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:07,818 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:43:07,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:07 WrapperNode [2020-11-28 04:43:07,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:07,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:07,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:43:07,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:43:07,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:07" (1/1) ... [2020-11-28 04:43:07,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:07" (1/1) ... [2020-11-28 04:43:07,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:07,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:43:07,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:43:07,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:43:07,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:07" (1/1) ... [2020-11-28 04:43:07,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:07" (1/1) ... [2020-11-28 04:43:07,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:07" (1/1) ... [2020-11-28 04:43:07,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:07" (1/1) ... [2020-11-28 04:43:07,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:07" (1/1) ... [2020-11-28 04:43:07,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:07" (1/1) ... [2020-11-28 04:43:07,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:07" (1/1) ... [2020-11-28 04:43:07,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:43:07,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:43:07,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:43:07,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:43:07,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c83448f1-42b7-4259-af0c-c6f9cdb6c6b0/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 04:43:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:43:07,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:43:08,164 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:43:08,165 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 04:43:08,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:08 BoogieIcfgContainer [2020-11-28 04:43:08,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:43:08,169 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:43:08,169 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:43:08,201 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:43:08,201 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:08" (1/1) ... [2020-11-28 04:43:08,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:43:08,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:08,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2020-11-28 04:43:08,281 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2020-11-28 04:43:08,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:43:08,284 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:08,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:08,467 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 04:43:08,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:08,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2020-11-28 04:43:08,561 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-11-28 04:43:08,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:43:08,561 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:08,615 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 04:43:08,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:08,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2020-11-28 04:43:08,718 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2020-11-28 04:43:08,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:43:08,718 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:08,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:08,761 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 04:43:08,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:08,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2020-11-28 04:43:08,855 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-11-28 04:43:08,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:43:08,855 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:08,903 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 04:43:08,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:08,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2020-11-28 04:43:08,992 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-11-28 04:43:08,992 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:43:08,992 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2020-11-28 04:43:08,999 INFO L765 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2020-11-28 04:43:09,029 INFO L569 CodeCheckObserver]: Invariant with dag size 11 [2020-11-28 04:43:09,037 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:43:09,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:43:09 ImpRootNode [2020-11-28 04:43:09,037 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:43:09,038 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:43:09,038 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:43:09,038 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:43:09,039 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:08" (3/4) ... [2020-11-28 04:43:09,042 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:43:09,051 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 04:43:09,051 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:43:09,051 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:43:09,089 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c83448f1-42b7-4259-af0c-c6f9cdb6c6b0/bin/ukojak/witness.graphml [2020-11-28 04:43:09,089 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:43:09,092 INFO L168 Benchmark]: Toolchain (without parser) took 1513.08 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 54.7 MB in the beginning and 60.9 MB in the end (delta: -6.2 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:09,093 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 86.0 MB. Free memory was 43.2 MB in the beginning and 43.2 MB in the end (delta: 42.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:09,093 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.19 ms. Allocated memory is still 86.0 MB. Free memory was 54.5 MB in the beginning and 64.9 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:09,094 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.32 ms. Allocated memory is still 86.0 MB. Free memory was 64.9 MB in the beginning and 63.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:09,095 INFO L168 Benchmark]: Boogie Preprocessor took 25.36 ms. Allocated memory is still 86.0 MB. Free memory was 63.6 MB in the beginning and 62.6 MB in the end (delta: 966.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:09,096 INFO L168 Benchmark]: RCFGBuilder took 288.66 ms. Allocated memory is still 86.0 MB. Free memory was 62.6 MB in the beginning and 53.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:09,097 INFO L168 Benchmark]: CodeCheck took 868.98 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 53.7 MB in the beginning and 63.0 MB in the end (delta: -9.2 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:09,098 INFO L168 Benchmark]: Witness Printer took 51.00 ms. Allocated memory is still 109.1 MB. Free memory was 63.0 MB in the beginning and 60.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:09,103 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, 9 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 82 SDslu, 0 SDs, 0 SdLazy, 316 SolverSat, 98 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 180 GetRequests, 161 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 272 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2/5 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: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (x < 1 && 0 <= x) || (x <= 2147483647 && 1 <= x) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 86.0 MB. Free memory was 43.2 MB in the beginning and 43.2 MB in the end (delta: 42.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 240.19 ms. Allocated memory is still 86.0 MB. Free memory was 54.5 MB in the beginning and 64.9 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.32 ms. Allocated memory is still 86.0 MB. Free memory was 64.9 MB in the beginning and 63.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.36 ms. Allocated memory is still 86.0 MB. Free memory was 63.6 MB in the beginning and 62.6 MB in the end (delta: 966.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 288.66 ms. Allocated memory is still 86.0 MB. Free memory was 62.6 MB in the beginning and 53.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 868.98 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 53.7 MB in the beginning and 63.0 MB in the end (delta: -9.2 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. * Witness Printer took 51.00 ms. Allocated memory is still 109.1 MB. Free memory was 63.0 MB in the beginning and 60.9 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...