./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.03.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_ec43c776-344d-4dd2-8bf8-1008a526253f/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ec43c776-344d-4dd2-8bf8-1008a526253f/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ec43c776-344d-4dd2-8bf8-1008a526253f/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ec43c776-344d-4dd2-8bf8-1008a526253f/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.03.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ec43c776-344d-4dd2-8bf8-1008a526253f/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ec43c776-344d-4dd2-8bf8-1008a526253f/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 9f46c7b2b1e4ea0f04ba596f18cee8c318356c44 ..................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:40:50,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:40:50,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:40:50,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:40:50,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:40:50,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:40:50,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:40:50,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:40:50,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:40:50,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:40:50,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:40:50,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:40:50,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:40:50,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:40:50,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:40:50,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:40:50,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:40:50,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:40:50,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:40:50,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:40:50,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:40:50,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:40:50,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:40:50,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:40:50,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:40:50,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:40:50,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:40:50,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:40:50,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:40:50,254 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:40:50,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:40:50,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:40:50,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:40:50,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:40:50,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:40:50,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:40:50,261 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:40:50,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:40:50,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:40:50,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:40:50,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:40:50,266 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ec43c776-344d-4dd2-8bf8-1008a526253f/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:40:50,306 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:40:50,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:40:50,308 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:40:50,308 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:40:50,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:40:50,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:40:50,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:40:50,310 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:40:50,311 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:40:50,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:40:50,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:40:50,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:40:50,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:40:50,313 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:40:50,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:40:50,313 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:40:50,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:40:50,313 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:40:50,314 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:40:50,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:40:50,314 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:40:50,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:40:50,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:40:50,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:40:50,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:40:50,315 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:40:50,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:40:50,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:40:50,316 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_ec43c776-344d-4dd2-8bf8-1008a526253f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ec43c776-344d-4dd2-8bf8-1008a526253f/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f46c7b2b1e4ea0f04ba596f18cee8c318356c44 [2020-11-28 04:40:50,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:40:50,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:40:50,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:40:50,610 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:40:50,611 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:40:50,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ec43c776-344d-4dd2-8bf8-1008a526253f/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.03.c [2020-11-28 04:40:50,688 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec43c776-344d-4dd2-8bf8-1008a526253f/bin/ukojak/data/2b15bd745/1a8fe0ad1b7b4feea048a2cb9553f0be/FLAGbfe3b814a [2020-11-28 04:40:51,147 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:40:51,147 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ec43c776-344d-4dd2-8bf8-1008a526253f/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.03.c [2020-11-28 04:40:51,153 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec43c776-344d-4dd2-8bf8-1008a526253f/bin/ukojak/data/2b15bd745/1a8fe0ad1b7b4feea048a2cb9553f0be/FLAGbfe3b814a [2020-11-28 04:40:51,546 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ec43c776-344d-4dd2-8bf8-1008a526253f/bin/ukojak/data/2b15bd745/1a8fe0ad1b7b4feea048a2cb9553f0be [2020-11-28 04:40:51,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:40:51,550 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:40:51,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:40:51,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:40:51,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:40:51,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:40:51" (1/1) ... [2020-11-28 04:40:51,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef47b28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:51, skipping insertion in model container [2020-11-28 04:40:51,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:40:51" (1/1) ... [2020-11-28 04:40:51,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:40:51,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:40:51,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:40:51,761 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:40:51,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:40:51,792 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:40:51,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:51 WrapperNode [2020-11-28 04:40:51,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:40:51,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:40:51,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:40:51,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:40:51,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:51" (1/1) ... [2020-11-28 04:40:51,810 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:51" (1/1) ... [2020-11-28 04:40:51,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:40:51,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:40:51,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:40:51,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:40:51,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:51" (1/1) ... [2020-11-28 04:40:51,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:51" (1/1) ... [2020-11-28 04:40:51,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:51" (1/1) ... [2020-11-28 04:40:51,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:51" (1/1) ... [2020-11-28 04:40:51,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:51" (1/1) ... [2020-11-28 04:40:51,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:51" (1/1) ... [2020-11-28 04:40:51,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:51" (1/1) ... [2020-11-28 04:40:51,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:40:51,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:40:51,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:40:51,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:40:51,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec43c776-344d-4dd2-8bf8-1008a526253f/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:40:51,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:40:51,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:40:52,113 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:40:52,114 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 04:40:52,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:52 BoogieIcfgContainer [2020-11-28 04:40:52,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:40:52,117 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:40:52,117 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:40:52,149 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:40:52,150 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:52" (1/1) ... [2020-11-28 04:40:52,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:40:52,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:52,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2020-11-28 04:40:52,235 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2020-11-28 04:40:52,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:40:52,238 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:52,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:40:52,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:52,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2020-11-28 04:40:52,448 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2020-11-28 04:40:52,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:40:52,448 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:40:52,461 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:40:52,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:40:52,472 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:40:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:40:52,509 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:40:52,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:40:52,519 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:40:52,526 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2020-11-28 04:40:52,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:40:52 ImpRootNode [2020-11-28 04:40:52,545 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:40:52,545 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:40:52,545 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:40:52,546 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:40:52,546 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:52" (3/4) ... [2020-11-28 04:40:52,548 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:40:52,590 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ec43c776-344d-4dd2-8bf8-1008a526253f/bin/ukojak/witness.graphml [2020-11-28 04:40:52,590 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:40:52,593 INFO L168 Benchmark]: Toolchain (without parser) took 1041.08 ms. Allocated memory is still 117.4 MB. Free memory was 84.2 MB in the beginning and 63.8 MB in the end (delta: 20.4 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:52,594 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 75.5 MB. Free memory was 36.0 MB in the beginning and 36.0 MB in the end (delta: 36.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:40:52,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.97 ms. Allocated memory is still 117.4 MB. Free memory was 84.0 MB in the beginning and 94.5 MB in the end (delta: -10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:52,597 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.39 ms. Allocated memory is still 117.4 MB. Free memory was 94.5 MB in the beginning and 93.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:40:52,598 INFO L168 Benchmark]: Boogie Preprocessor took 17.77 ms. Allocated memory is still 117.4 MB. Free memory was 93.1 MB in the beginning and 92.5 MB in the end (delta: 688.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:40:52,602 INFO L168 Benchmark]: RCFGBuilder took 270.64 ms. Allocated memory is still 117.4 MB. Free memory was 92.5 MB in the beginning and 82.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:52,603 INFO L168 Benchmark]: CodeCheck took 428.15 ms. Allocated memory is still 117.4 MB. Free memory was 82.6 MB in the beginning and 65.3 MB in the end (delta: 17.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:52,604 INFO L168 Benchmark]: Witness Printer took 45.19 ms. Allocated memory is still 117.4 MB. Free memory was 65.3 MB in the beginning and 63.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:52,612 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, 10 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 1 SDslu, 0 SDs, 0 SdLazy, 9 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - CounterExampleResult [Line: 26]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, oldx; [L24] x = __VERIFIER_nondet_int() [L25] oldx = __VERIFIER_nondet_int() [L26] x > 1 && -2*x == oldx [L26] -2*x * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 75.5 MB. Free memory was 36.0 MB in the beginning and 36.0 MB in the end (delta: 36.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 240.97 ms. Allocated memory is still 117.4 MB. Free memory was 84.0 MB in the beginning and 94.5 MB in the end (delta: -10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.39 ms. Allocated memory is still 117.4 MB. Free memory was 94.5 MB in the beginning and 93.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.77 ms. Allocated memory is still 117.4 MB. Free memory was 93.1 MB in the beginning and 92.5 MB in the end (delta: 688.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 270.64 ms. Allocated memory is still 117.4 MB. Free memory was 92.5 MB in the beginning and 82.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 428.15 ms. Allocated memory is still 117.4 MB. Free memory was 82.6 MB in the beginning and 65.3 MB in the end (delta: 17.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Witness Printer took 45.19 ms. Allocated memory is still 117.4 MB. Free memory was 65.3 MB in the beginning and 63.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...