./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Piecewise.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_802795e3-cca5-4a64-b3b7-572dccf9ad8a/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_802795e3-cca5-4a64-b3b7-572dccf9ad8a/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_802795e3-cca5-4a64-b3b7-572dccf9ad8a/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_802795e3-cca5-4a64-b3b7-572dccf9ad8a/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Piecewise.c -s /tmp/vcloud-vcloud-master/worker/run_dir_802795e3-cca5-4a64-b3b7-572dccf9ad8a/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_802795e3-cca5-4a64-b3b7-572dccf9ad8a/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 36155f521cfe170e9c03fd915618e68821fe0430 ....................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:41:57,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:41:57,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:41:57,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:41:57,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:41:57,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:41:57,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:41:57,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:41:57,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:41:57,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:41:57,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:41:57,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:41:57,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:41:57,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:41:57,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:41:57,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:41:57,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:41:57,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:41:57,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:41:57,170 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:41:57,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:41:57,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:41:57,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:41:57,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:41:57,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:41:57,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:41:57,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:41:57,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:41:57,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:41:57,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:41:57,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:41:57,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:41:57,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:41:57,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:41:57,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:41:57,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:41:57,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:41:57,223 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:41:57,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:41:57,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:41:57,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:41:57,229 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_802795e3-cca5-4a64-b3b7-572dccf9ad8a/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-29 19:41:57,291 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:41:57,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:41:57,292 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 19:41:57,293 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 19:41:57,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:41:57,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:41:57,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:41:57,294 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:41:57,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:41:57,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:41:57,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:41:57,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:41:57,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:41:57,296 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 19:41:57,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:41:57,296 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:41:57,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:41:57,297 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 19:41:57,297 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 19:41:57,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:41:57,298 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:41:57,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 19:41:57,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:41:57,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:41:57,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:41:57,299 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 19:41:57,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:41:57,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:41:57,300 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_802795e3-cca5-4a64-b3b7-572dccf9ad8a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_802795e3-cca5-4a64-b3b7-572dccf9ad8a/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36155f521cfe170e9c03fd915618e68821fe0430 [2020-11-29 19:41:57,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:41:57,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:41:57,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:41:57,708 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:41:57,709 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:41:57,710 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_802795e3-cca5-4a64-b3b7-572dccf9ad8a/bin/ukojak/../../sv-benchmarks/c/termination-crafted/Piecewise.c [2020-11-29 19:41:57,805 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_802795e3-cca5-4a64-b3b7-572dccf9ad8a/bin/ukojak/data/156a205d3/3873c1ac85d649849f51250641d72a13/FLAG94ab10de9 [2020-11-29 19:41:58,302 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:41:58,302 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_802795e3-cca5-4a64-b3b7-572dccf9ad8a/sv-benchmarks/c/termination-crafted/Piecewise.c [2020-11-29 19:41:58,309 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_802795e3-cca5-4a64-b3b7-572dccf9ad8a/bin/ukojak/data/156a205d3/3873c1ac85d649849f51250641d72a13/FLAG94ab10de9 [2020-11-29 19:41:58,692 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_802795e3-cca5-4a64-b3b7-572dccf9ad8a/bin/ukojak/data/156a205d3/3873c1ac85d649849f51250641d72a13 [2020-11-29 19:41:58,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:41:58,696 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:41:58,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:41:58,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:41:58,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:41:58,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:41:58" (1/1) ... [2020-11-29 19:41:58,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c04034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:41:58, skipping insertion in model container [2020-11-29 19:41:58,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:41:58" (1/1) ... [2020-11-29 19:41:58,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:41:58,732 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:41:58,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:41:58,893 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:41:58,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:41:58,943 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:41:58,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:41:58 WrapperNode [2020-11-29 19:41:58,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:41:58,948 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:41:58,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:41:58,948 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:41:58,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:41:58" (1/1) ... [2020-11-29 19:41:58,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:41:58" (1/1) ... [2020-11-29 19:41:58,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:41:58,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:41:58,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:41:58,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:41:58,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:41:58" (1/1) ... [2020-11-29 19:41:58,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:41:58" (1/1) ... [2020-11-29 19:41:58,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:41:58" (1/1) ... [2020-11-29 19:41:58,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:41:58" (1/1) ... [2020-11-29 19:41:58,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:41:58" (1/1) ... [2020-11-29 19:41:59,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:41:58" (1/1) ... [2020-11-29 19:41:59,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:41:58" (1/1) ... [2020-11-29 19:41:59,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:41:59,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:41:59,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:41:59,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:41:59,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:41:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_802795e3-cca5-4a64-b3b7-572dccf9ad8a/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 [2020-11-29 19:41:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:41:59,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:41:59,470 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:41:59,470 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-29 19:41:59,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:41:59 BoogieIcfgContainer [2020-11-29 19:41:59,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:41:59,474 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 19:41:59,474 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 19:41:59,486 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 19:41:59,487 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:41:59" (1/1) ... [2020-11-29 19:41:59,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:41:59,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:41:59,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2020-11-29 19:41:59,541 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-11-29 19:41:59,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 19:41:59,544 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:41:59,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:41:59,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:41:59,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:41:59,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2020-11-29 19:41:59,844 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2020-11-29 19:41:59,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 19:41:59,845 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:41:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:41:59,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:42:00,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:42:00,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2020-11-29 19:42:00,200 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2020-11-29 19:42:00,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 19:42:00,200 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:42:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:42:00,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:42:00,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:42:00,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 33 transitions. [2020-11-29 19:42:00,539 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2020-11-29 19:42:00,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 19:42:00,539 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:42:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:42:00,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:42:00,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:42:00,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 25 states and 38 transitions. [2020-11-29 19:42:00,874 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2020-11-29 19:42:00,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 19:42:00,877 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:42:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:42:00,962 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:42:01,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:42:01,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 14 states and 19 transitions. [2020-11-29 19:42:01,090 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 19 transitions. [2020-11-29 19:42:01,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 19:42:01,091 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:42:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:42:01,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 19:42:01,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:42:01,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2020-11-29 19:42:01,274 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2020-11-29 19:42:01,275 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:42:01,275 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2020-11-29 19:42:01,283 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-11-29 19:42:01,404 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-11-29 19:42:01,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 07:42:01 ImpRootNode [2020-11-29 19:42:01,415 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 19:42:01,416 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:42:01,416 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:42:01,417 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:42:01,417 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:41:59" (3/4) ... [2020-11-29 19:42:01,421 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:42:01,431 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-29 19:42:01,431 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-29 19:42:01,432 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:42:01,479 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_802795e3-cca5-4a64-b3b7-572dccf9ad8a/bin/ukojak/witness.graphml [2020-11-29 19:42:01,480 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:42:01,482 INFO L168 Benchmark]: Toolchain (without parser) took 2785.19 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 58.6 MB in the beginning and 45.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:42:01,483 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 90.2 MB. Free memory is still 46.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:42:01,484 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.96 ms. Allocated memory is still 90.2 MB. Free memory was 58.4 MB in the beginning and 69.4 MB in the end (delta: -11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:42:01,485 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.53 ms. Allocated memory is still 90.2 MB. Free memory was 69.4 MB in the beginning and 68.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:42:01,486 INFO L168 Benchmark]: Boogie Preprocessor took 22.45 ms. Allocated memory is still 90.2 MB. Free memory was 68.0 MB in the beginning and 67.3 MB in the end (delta: 767.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:42:01,487 INFO L168 Benchmark]: RCFGBuilder took 464.93 ms. Allocated memory is still 90.2 MB. Free memory was 67.3 MB in the beginning and 56.2 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:42:01,488 INFO L168 Benchmark]: CodeCheck took 1941.83 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 56.2 MB in the beginning and 48.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 30.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:42:01,489 INFO L168 Benchmark]: Witness Printer took 63.97 ms. Allocated memory is still 111.1 MB. Free memory was 47.4 MB in the beginning and 45.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:42:01,493 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 13 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.7s, OverallIterations: 7, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 496 SDslu, 0 SDs, 0 SdLazy, 2070 SolverSat, 358 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 350 GetRequests, 313 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 420 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 5/5 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: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: q <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 90.2 MB. Free memory is still 46.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 247.96 ms. Allocated memory is still 90.2 MB. Free memory was 58.4 MB in the beginning and 69.4 MB in the end (delta: -11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.53 ms. Allocated memory is still 90.2 MB. Free memory was 69.4 MB in the beginning and 68.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.45 ms. Allocated memory is still 90.2 MB. Free memory was 68.0 MB in the beginning and 67.3 MB in the end (delta: 767.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 464.93 ms. Allocated memory is still 90.2 MB. Free memory was 67.3 MB in the beginning and 56.2 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 1941.83 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 56.2 MB in the beginning and 48.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 30.7 MB. Max. memory is 16.1 GB. * Witness Printer took 63.97 ms. Allocated memory is still 111.1 MB. Free memory was 47.4 MB in the beginning and 45.3 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...