./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Division-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_aba8978d-2d96-4daf-bd97-2c8632030fd5/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_aba8978d-2d96-4daf-bd97-2c8632030fd5/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_aba8978d-2d96-4daf-bd97-2c8632030fd5/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_aba8978d-2d96-4daf-bd97-2c8632030fd5/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Division-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_aba8978d-2d96-4daf-bd97-2c8632030fd5/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_aba8978d-2d96-4daf-bd97-2c8632030fd5/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 d089d3bcb050ed43a9f47a1e8909790d01358f90 ..................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 08:15:23,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 08:15:23,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 08:15:23,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 08:15:23,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 08:15:23,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 08:15:23,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 08:15:23,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 08:15:23,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 08:15:23,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 08:15:23,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 08:15:23,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 08:15:23,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 08:15:23,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 08:15:23,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 08:15:23,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 08:15:23,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 08:15:23,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 08:15:23,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 08:15:23,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 08:15:23,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 08:15:23,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 08:15:23,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 08:15:23,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 08:15:23,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 08:15:23,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 08:15:23,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 08:15:23,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 08:15:23,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 08:15:23,188 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 08:15:23,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 08:15:23,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 08:15:23,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 08:15:23,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 08:15:23,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 08:15:23,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 08:15:23,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 08:15:23,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 08:15:23,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 08:15:23,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 08:15:23,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 08:15:23,203 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_aba8978d-2d96-4daf-bd97-2c8632030fd5/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-11-20 08:15:23,217 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 08:15:23,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 08:15:23,218 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 08:15:23,218 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 08:15:23,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 08:15:23,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 08:15:23,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 08:15:23,219 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 08:15:23,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 08:15:23,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 08:15:23,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 08:15:23,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 08:15:23,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 08:15:23,220 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 08:15:23,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 08:15:23,221 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 08:15:23,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 08:15:23,221 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 08:15:23,221 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 08:15:23,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 08:15:23,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 08:15:23,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 08:15:23,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 08:15:23,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 08:15:23,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 08:15:23,223 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 08:15:23,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 08:15:23,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 08:15:23,223 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_aba8978d-2d96-4daf-bd97-2c8632030fd5/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 -> d089d3bcb050ed43a9f47a1e8909790d01358f90 [2019-11-20 08:15:23,382 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 08:15:23,399 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 08:15:23,403 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 08:15:23,404 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 08:15:23,405 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 08:15:23,406 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_aba8978d-2d96-4daf-bd97-2c8632030fd5/bin/ukojak/../../sv-benchmarks/c/termination-crafted/Division-2.c [2019-11-20 08:15:23,472 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aba8978d-2d96-4daf-bd97-2c8632030fd5/bin/ukojak/data/cf7808565/7e59bbeb204b47ccbbcb0ea216d8c516/FLAG50007e463 [2019-11-20 08:15:23,831 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 08:15:23,833 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_aba8978d-2d96-4daf-bd97-2c8632030fd5/sv-benchmarks/c/termination-crafted/Division-2.c [2019-11-20 08:15:23,839 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aba8978d-2d96-4daf-bd97-2c8632030fd5/bin/ukojak/data/cf7808565/7e59bbeb204b47ccbbcb0ea216d8c516/FLAG50007e463 [2019-11-20 08:15:24,264 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_aba8978d-2d96-4daf-bd97-2c8632030fd5/bin/ukojak/data/cf7808565/7e59bbeb204b47ccbbcb0ea216d8c516 [2019-11-20 08:15:24,267 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 08:15:24,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 08:15:24,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 08:15:24,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 08:15:24,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 08:15:24,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:15:24" (1/1) ... [2019-11-20 08:15:24,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f3d127e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:15:24, skipping insertion in model container [2019-11-20 08:15:24,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:15:24" (1/1) ... [2019-11-20 08:15:24,279 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 08:15:24,290 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 08:15:24,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 08:15:24,423 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 08:15:24,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 08:15:24,517 INFO L192 MainTranslator]: Completed translation [2019-11-20 08:15:24,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:15:24 WrapperNode [2019-11-20 08:15:24,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 08:15:24,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 08:15:24,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 08:15:24,520 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 08:15:24,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:15:24" (1/1) ... [2019-11-20 08:15:24,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:15:24" (1/1) ... [2019-11-20 08:15:24,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 08:15:24,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 08:15:24,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 08:15:24,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 08:15:24,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:15:24" (1/1) ... [2019-11-20 08:15:24,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:15:24" (1/1) ... [2019-11-20 08:15:24,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:15:24" (1/1) ... [2019-11-20 08:15:24,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:15:24" (1/1) ... [2019-11-20 08:15:24,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:15:24" (1/1) ... [2019-11-20 08:15:24,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:15:24" (1/1) ... [2019-11-20 08:15:24,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:15:24" (1/1) ... [2019-11-20 08:15:24,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 08:15:24,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 08:15:24,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 08:15:24,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 08:15:24,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:15:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aba8978d-2d96-4daf-bd97-2c8632030fd5/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 [2019-11-20 08:15:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 08:15:24,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 08:15:24,844 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 08:15:24,845 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 08:15:24,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:15:24 BoogieIcfgContainer [2019-11-20 08:15:24,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 08:15:24,847 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 08:15:24,847 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 08:15:24,858 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 08:15:24,859 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:15:24" (1/1) ... [2019-11-20 08:15:24,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:15:24,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:15:24,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-11-20 08:15:24,897 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-11-20 08:15:24,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-20 08:15:24,900 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:15:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:15:25,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:15:25,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:15:25,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-11-20 08:15:25,055 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-11-20 08:15:25,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 08:15:25,055 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:15:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:15:25,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:15:25,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:15:25,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-11-20 08:15:25,192 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-11-20 08:15:25,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 08:15:25,192 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:15:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:15:25,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:15:25,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:15:25,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-11-20 08:15:25,314 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-11-20 08:15:25,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 08:15:25,314 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:15:25,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:15:25,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:15:25,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:15:25,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-11-20 08:15:25,415 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-11-20 08:15:25,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 08:15:25,416 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:15:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:15:25,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:15:25,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:15:25,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-11-20 08:15:25,670 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-11-20 08:15:25,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 08:15:25,671 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:15:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:15:25,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:15:25,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:15:25,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-20 08:15:25,794 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-20 08:15:25,794 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 08:15:25,794 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2019-11-20 08:15:25,807 INFO L765 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2019-11-20 08:15:25,854 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-20 08:15:25,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 08:15:25 ImpRootNode [2019-11-20 08:15:25,862 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 08:15:25,863 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 08:15:25,863 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 08:15:25,863 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 08:15:25,864 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:15:24" (3/4) ... [2019-11-20 08:15:25,870 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 08:15:25,880 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-20 08:15:25,880 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 08:15:25,881 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 08:15:25,939 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_aba8978d-2d96-4daf-bd97-2c8632030fd5/bin/ukojak/witness.graphml [2019-11-20 08:15:25,939 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 08:15:25,941 INFO L168 Benchmark]: Toolchain (without parser) took 1672.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 946.1 MB in the beginning and 1.0 GB in the end (delta: -72.8 MB). Peak memory consumption was 46.2 MB. Max. memory is 11.5 GB. [2019-11-20 08:15:25,941 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 08:15:25,942 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -166.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-20 08:15:25,942 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.15 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. [2019-11-20 08:15:25,943 INFO L168 Benchmark]: Boogie Preprocessor took 18.81 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. [2019-11-20 08:15:25,943 INFO L168 Benchmark]: RCFGBuilder took 273.60 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. [2019-11-20 08:15:25,944 INFO L168 Benchmark]: CodeCheck took 1015.56 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: 71.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 11.5 GB. [2019-11-20 08:15:25,944 INFO L168 Benchmark]: Witness Printer took 76.17 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. [2019-11-20 08:15:25,947 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, 15 locations, 6 error locations. Result: SAFE, OverallTime: 0.9s, OverallIterations: 7, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 128 SDtfs, 222 SDslu, 0 SDs, 0 SdLazy, 708 SolverSat, 206 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 196 SyntacticMatches, 11 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 559 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 250.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -166.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.15 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 18.81 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 273.60 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 1015.56 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: 71.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 11.5 GB. * Witness Printer took 76.17 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...