./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_30fa251e-def3-4750-802e-da511a0f7c15/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_30fa251e-def3-4750-802e-da511a0f7c15/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_30fa251e-def3-4750-802e-da511a0f7c15/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_30fa251e-def3-4750-802e-da511a0f7c15/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_30fa251e-def3-4750-802e-da511a0f7c15/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_30fa251e-def3-4750-802e-da511a0f7c15/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 c7d1dab681440b8e4fbe52aab1c781a8a0ad5fbc .................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-02 00:58:30,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-02 00:58:30,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-02 00:58:30,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-02 00:58:30,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-02 00:58:30,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-02 00:58:30,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-02 00:58:30,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-02 00:58:30,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-02 00:58:30,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-02 00:58:30,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-02 00:58:30,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-02 00:58:30,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-02 00:58:30,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-02 00:58:30,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-02 00:58:30,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-02 00:58:30,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-02 00:58:30,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-02 00:58:30,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-02 00:58:30,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-02 00:58:30,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-02 00:58:30,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-02 00:58:30,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-02 00:58:30,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-02 00:58:30,068 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-02 00:58:30,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-02 00:58:30,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-02 00:58:30,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-02 00:58:30,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-02 00:58:30,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-02 00:58:30,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-02 00:58:30,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-02 00:58:30,070 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-02 00:58:30,071 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-02 00:58:30,072 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-02 00:58:30,072 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-02 00:58:30,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-02 00:58:30,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-02 00:58:30,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-02 00:58:30,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-02 00:58:30,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-02 00:58:30,074 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_30fa251e-def3-4750-802e-da511a0f7c15/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-12-02 00:58:30,083 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-02 00:58:30,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-02 00:58:30,084 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-02 00:58:30,084 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-12-02 00:58:30,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-02 00:58:30,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-02 00:58:30,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-02 00:58:30,085 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-02 00:58:30,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-02 00:58:30,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-02 00:58:30,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-02 00:58:30,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-02 00:58:30,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-02 00:58:30,085 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-02 00:58:30,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-02 00:58:30,086 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-02 00:58:30,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-02 00:58:30,086 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-02 00:58:30,086 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-02 00:58:30,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-02 00:58:30,086 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-02 00:58:30,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-02 00:58:30,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-02 00:58:30,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-02 00:58:30,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-02 00:58:30,087 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-02 00:58:30,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-02 00:58:30,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-02 00:58:30,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_30fa251e-def3-4750-802e-da511a0f7c15/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 -> c7d1dab681440b8e4fbe52aab1c781a8a0ad5fbc [2019-12-02 00:58:30,191 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-02 00:58:30,198 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-02 00:58:30,201 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-02 00:58:30,202 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-02 00:58:30,202 INFO L275 PluginConnector]: CDTParser initialized [2019-12-02 00:58:30,202 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_30fa251e-def3-4750-802e-da511a0f7c15/bin/ukojak/../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2019-12-02 00:58:30,241 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_30fa251e-def3-4750-802e-da511a0f7c15/bin/ukojak/data/02c6d55cb/7a98334b33374cee859cf1bf7b140ebb/FLAG02b6c7a5d [2019-12-02 00:58:30,589 INFO L306 CDTParser]: Found 1 translation units. [2019-12-02 00:58:30,589 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_30fa251e-def3-4750-802e-da511a0f7c15/sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2019-12-02 00:58:30,593 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_30fa251e-def3-4750-802e-da511a0f7c15/bin/ukojak/data/02c6d55cb/7a98334b33374cee859cf1bf7b140ebb/FLAG02b6c7a5d [2019-12-02 00:58:30,601 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_30fa251e-def3-4750-802e-da511a0f7c15/bin/ukojak/data/02c6d55cb/7a98334b33374cee859cf1bf7b140ebb [2019-12-02 00:58:30,603 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-02 00:58:30,604 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-02 00:58:30,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-02 00:58:30,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-02 00:58:30,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-02 00:58:30,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:58:30" (1/1) ... [2019-12-02 00:58:30,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@119a7e8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:58:30, skipping insertion in model container [2019-12-02 00:58:30,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:58:30" (1/1) ... [2019-12-02 00:58:30,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-02 00:58:30,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-02 00:58:30,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-02 00:58:30,720 INFO L203 MainTranslator]: Completed pre-run [2019-12-02 00:58:30,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-02 00:58:30,769 INFO L208 MainTranslator]: Completed translation [2019-12-02 00:58:30,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:58:30 WrapperNode [2019-12-02 00:58:30,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-02 00:58:30,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-02 00:58:30,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-02 00:58:30,770 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-02 00:58:30,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:58:30" (1/1) ... [2019-12-02 00:58:30,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:58:30" (1/1) ... [2019-12-02 00:58:30,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-02 00:58:30,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-02 00:58:30,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-02 00:58:30,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-02 00:58:30,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:58:30" (1/1) ... [2019-12-02 00:58:30,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:58:30" (1/1) ... [2019-12-02 00:58:30,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:58:30" (1/1) ... [2019-12-02 00:58:30,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:58:30" (1/1) ... [2019-12-02 00:58:30,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:58:30" (1/1) ... [2019-12-02 00:58:30,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:58:30" (1/1) ... [2019-12-02 00:58:30,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:58:30" (1/1) ... [2019-12-02 00:58:30,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-02 00:58:30,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-02 00:58:30,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-02 00:58:30,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-02 00:58:30,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:58:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30fa251e-def3-4750-802e-da511a0f7c15/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-02 00:58:30,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-02 00:58:30,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-02 00:58:30,941 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-02 00:58:30,941 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-02 00:58:30,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:58:30 BoogieIcfgContainer [2019-12-02 00:58:30,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-02 00:58:30,942 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-02 00:58:30,942 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-02 00:58:30,949 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-02 00:58:30,949 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:58:30" (1/1) ... [2019-12-02 00:58:30,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-02 00:58:30,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:58:30,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2019-12-02 00:58:30,977 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2019-12-02 00:58:30,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-02 00:58:30,979 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:58:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 00:58:31,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 00:58:31,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:58:31,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2019-12-02 00:58:31,108 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-12-02 00:58:31,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-02 00:58:31,108 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:58:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 00:58:31,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 00:58:31,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:58:31,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2019-12-02 00:58:31,179 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2019-12-02 00:58:31,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-02 00:58:31,179 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:58:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 00:58:31,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 00:58:31,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:58:31,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2019-12-02 00:58:31,239 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-12-02 00:58:31,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-02 00:58:31,239 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:58:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 00:58:31,264 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 00:58:31,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:58:31,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2019-12-02 00:58:31,306 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2019-12-02 00:58:31,306 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-02 00:58:31,306 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2019-12-02 00:58:31,312 INFO L765 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2019-12-02 00:58:31,329 INFO L569 CodeCheckObserver]: Invariant with dag size 12 [2019-12-02 00:58:31,336 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-12-02 00:58:31,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 12:58:31 ImpRootNode [2019-12-02 00:58:31,336 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-02 00:58:31,336 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-02 00:58:31,336 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-02 00:58:31,337 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-02 00:58:31,337 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:58:30" (3/4) ... [2019-12-02 00:58:31,339 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-02 00:58:31,345 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-12-02 00:58:31,346 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-02 00:58:31,346 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-02 00:58:31,372 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_30fa251e-def3-4750-802e-da511a0f7c15/bin/ukojak/witness.graphml [2019-12-02 00:58:31,372 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-02 00:58:31,374 INFO L168 Benchmark]: Toolchain (without parser) took 769.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.4 MB). Free memory was 946.1 MB in the beginning and 1.0 GB in the end (delta: -60.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-02 00:58:31,374 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-02 00:58:31,375 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -130.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-02 00:58:31,375 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.53 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-02 00:58:31,375 INFO L168 Benchmark]: Boogie Preprocessor took 12.02 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-02 00:58:31,375 INFO L168 Benchmark]: RCFGBuilder took 139.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-02 00:58:31,376 INFO L168 Benchmark]: CodeCheck took 393.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. [2019-12-02 00:58:31,376 INFO L168 Benchmark]: Witness Printer took 35.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-02 00:58:31,378 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 9 locations, 2 error locations. Result: SAFE, OverallTime: 0.3s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 82 SDslu, 0 SDs, 0 SdLazy, 316 SolverSat, 98 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 180 GetRequests, 161 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 314 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: 17]: 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: (x <= 2147483647 && 1 <= x) || (x < 1 && 0 <= x + 1) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 164.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -130.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.53 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.02 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 139.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * CodeCheck took 393.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. * Witness Printer took 35.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...