./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.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_7e321a9f-aad5-474d-a637-9657650b2526/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7e321a9f-aad5-474d-a637-9657650b2526/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7e321a9f-aad5-474d-a637-9657650b2526/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7e321a9f-aad5-474d-a637-9657650b2526/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7e321a9f-aad5-474d-a637-9657650b2526/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7e321a9f-aad5-474d-a637-9657650b2526/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 00d107e65807c328c5ca82cfbd5c365270dccab4 .......................................................................................................................................................................................................................................................................................................................................................... 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 03:20:35,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:20:35,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:20:35,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:20:35,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:20:35,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:20:35,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:20:35,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:20:35,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:20:35,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:20:35,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:20:35,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:20:35,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:20:35,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:20:35,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:20:35,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:20:35,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:20:35,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:20:35,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:20:35,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:20:35,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:20:35,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:20:35,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:20:35,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:20:35,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:20:35,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:20:35,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:20:35,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:20:35,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:20:35,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:20:35,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:20:35,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:20:35,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:20:35,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:20:35,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:20:35,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:20:35,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:20:35,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:20:35,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:20:35,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:20:35,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:20:35,213 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7e321a9f-aad5-474d-a637-9657650b2526/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-28 03:20:35,254 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:20:35,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:20:35,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:20:35,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:20:35,258 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:20:35,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:20:35,258 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:20:35,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:20:35,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:20:35,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:20:35,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:20:35,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:20:35,260 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 03:20:35,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:20:35,261 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:20:35,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:20:35,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:20:35,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:20:35,262 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:20:35,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:20:35,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:20:35,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:20:35,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:20:35,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:20:35,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:20:35,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:20:35,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:20:35,264 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:20:35,264 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_7e321a9f-aad5-474d-a637-9657650b2526/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7e321a9f-aad5-474d-a637-9657650b2526/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00d107e65807c328c5ca82cfbd5c365270dccab4 [2020-11-28 03:20:35,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:20:35,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:20:35,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:20:35,550 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:20:35,551 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:20:35,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7e321a9f-aad5-474d-a637-9657650b2526/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c [2020-11-28 03:20:35,646 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e321a9f-aad5-474d-a637-9657650b2526/bin/uautomizer/data/47d5b5781/0892809fa2b04e7295aec760221191f6/FLAGa5fd682d7 [2020-11-28 03:20:36,049 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:20:36,049 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7e321a9f-aad5-474d-a637-9657650b2526/sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c [2020-11-28 03:20:36,055 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e321a9f-aad5-474d-a637-9657650b2526/bin/uautomizer/data/47d5b5781/0892809fa2b04e7295aec760221191f6/FLAGa5fd682d7 [2020-11-28 03:20:36,476 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7e321a9f-aad5-474d-a637-9657650b2526/bin/uautomizer/data/47d5b5781/0892809fa2b04e7295aec760221191f6 [2020-11-28 03:20:36,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:20:36,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:20:36,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:20:36,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:20:36,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:20:36,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:36" (1/1) ... [2020-11-28 03:20:36,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27a0c8b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:36, skipping insertion in model container [2020-11-28 03:20:36,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:36" (1/1) ... [2020-11-28 03:20:36,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:20:36,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:20:36,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:20:36,670 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:20:36,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:20:36,714 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:20:36,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:36 WrapperNode [2020-11-28 03:20:36,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:20:36,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:20:36,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:20:36,716 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:20:36,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:36" (1/1) ... [2020-11-28 03:20:36,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:36" (1/1) ... [2020-11-28 03:20:36,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:20:36,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:20:36,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:20:36,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:20:36,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:36" (1/1) ... [2020-11-28 03:20:36,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:36" (1/1) ... [2020-11-28 03:20:36,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:36" (1/1) ... [2020-11-28 03:20:36,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:36" (1/1) ... [2020-11-28 03:20:36,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:36" (1/1) ... [2020-11-28 03:20:36,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:36" (1/1) ... [2020-11-28 03:20:36,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:36" (1/1) ... [2020-11-28 03:20:36,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:20:36,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:20:36,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:20:36,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:20:36,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e321a9f-aad5-474d-a637-9657650b2526/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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:2000 [2020-11-28 03:20:36,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:20:36,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:20:37,179 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:20:37,179 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 03:20:37,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:37 BoogieIcfgContainer [2020-11-28 03:20:37,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:20:37,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:20:37,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:20:37,212 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:20:37,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:20:36" (1/3) ... [2020-11-28 03:20:37,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca8be42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:37, skipping insertion in model container [2020-11-28 03:20:37,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:36" (2/3) ... [2020-11-28 03:20:37,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca8be42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:37, skipping insertion in model container [2020-11-28 03:20:37,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:37" (3/3) ... [2020-11-28 03:20:37,216 INFO L111 eAbstractionObserver]: Analyzing ICFG NoriSharma-FSE2013-Fig8.c [2020-11-28 03:20:37,226 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:20:37,230 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-11-28 03:20:37,259 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-11-28 03:20:37,287 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:20:37,287 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:20:37,287 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:20:37,288 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:20:37,288 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:20:37,288 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:20:37,288 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:20:37,288 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:20:37,302 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-11-28 03:20:37,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 03:20:37,306 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:37,307 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-28 03:20:37,308 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:20:37,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:37,314 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2020-11-28 03:20:37,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:37,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268865544] [2020-11-28 03:20:37,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:37,465 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 03:20:37,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268865544] [2020-11-28 03:20:37,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:37,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-28 03:20:37,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889956205] [2020-11-28 03:20:37,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:20:37,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:37,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:20:37,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:20:37,488 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 3 states. [2020-11-28 03:20:37,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:37,554 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2020-11-28 03:20:37,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:20:37,556 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-28 03:20:37,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:37,565 INFO L225 Difference]: With dead ends: 35 [2020-11-28 03:20:37,565 INFO L226 Difference]: Without dead ends: 22 [2020-11-28 03:20:37,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:20:37,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-28 03:20:37,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2020-11-28 03:20:37,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-28 03:20:37,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-11-28 03:20:37,604 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 3 [2020-11-28 03:20:37,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:37,604 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-28 03:20:37,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:20:37,605 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-11-28 03:20:37,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 03:20:37,605 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:37,605 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 03:20:37,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:20:37,606 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:20:37,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:37,607 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2020-11-28 03:20:37,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:37,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056624074] [2020-11-28 03:20:37,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:37,636 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 03:20:37,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056624074] [2020-11-28 03:20:37,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:37,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-28 03:20:37,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36751976] [2020-11-28 03:20:37,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:20:37,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:37,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:20:37,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:20:37,640 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 3 states. [2020-11-28 03:20:37,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:37,662 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-11-28 03:20:37,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:20:37,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-28 03:20:37,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:37,663 INFO L225 Difference]: With dead ends: 21 [2020-11-28 03:20:37,663 INFO L226 Difference]: Without dead ends: 20 [2020-11-28 03:20:37,664 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:20:37,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-28 03:20:37,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-28 03:20:37,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-28 03:20:37,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-11-28 03:20:37,669 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 4 [2020-11-28 03:20:37,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:37,669 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-11-28 03:20:37,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:20:37,670 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-11-28 03:20:37,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 03:20:37,670 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:37,670 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:20:37,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:20:37,671 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:20:37,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:37,672 INFO L82 PathProgramCache]: Analyzing trace with hash 925739533, now seen corresponding path program 1 times [2020-11-28 03:20:37,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:37,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565346963] [2020-11-28 03:20:37,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:37,705 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 03:20:37,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565346963] [2020-11-28 03:20:37,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:37,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-28 03:20:37,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225646063] [2020-11-28 03:20:37,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:20:37,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:37,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:20:37,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:20:37,708 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 3 states. [2020-11-28 03:20:37,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:37,778 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2020-11-28 03:20:37,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:20:37,779 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-28 03:20:37,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:37,780 INFO L225 Difference]: With dead ends: 20 [2020-11-28 03:20:37,780 INFO L226 Difference]: Without dead ends: 19 [2020-11-28 03:20:37,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:20:37,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-28 03:20:37,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-28 03:20:37,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-28 03:20:37,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-11-28 03:20:37,785 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 6 [2020-11-28 03:20:37,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:37,786 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-11-28 03:20:37,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:20:37,786 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-11-28 03:20:37,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 03:20:37,787 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:37,787 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:20:37,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:20:37,787 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:20:37,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:37,788 INFO L82 PathProgramCache]: Analyzing trace with hash 925739853, now seen corresponding path program 1 times [2020-11-28 03:20:37,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:37,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471171498] [2020-11-28 03:20:37,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:37,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:37,822 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:37,835 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:37,851 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:37,851 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:20:37,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:20:37,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:20:37 BoogieIcfgContainer [2020-11-28 03:20:37,870 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:20:37,871 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:20:37,871 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:20:37,871 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:20:37,872 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:37" (3/4) ... [2020-11-28 03:20:37,874 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:20:37,906 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7e321a9f-aad5-474d-a637-9657650b2526/bin/uautomizer/witness.graphml [2020-11-28 03:20:37,906 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:20:37,908 INFO L168 Benchmark]: Toolchain (without parser) took 1427.78 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 69.9 MB in the beginning and 99.8 MB in the end (delta: -30.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:37,909 INFO L168 Benchmark]: CDTParser took 2.57 ms. Allocated memory is still 104.9 MB. Free memory was 75.0 MB in the beginning and 75.0 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:37,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.63 ms. Allocated memory is still 104.9 MB. Free memory was 69.9 MB in the beginning and 81.2 MB in the end (delta: -11.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:37,910 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.31 ms. Allocated memory is still 104.9 MB. Free memory was 81.2 MB in the beginning and 80.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:37,911 INFO L168 Benchmark]: Boogie Preprocessor took 37.94 ms. Allocated memory is still 104.9 MB. Free memory was 80.1 MB in the beginning and 79.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:37,912 INFO L168 Benchmark]: RCFGBuilder took 347.08 ms. Allocated memory is still 104.9 MB. Free memory was 79.1 MB in the beginning and 68.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:37,913 INFO L168 Benchmark]: TraceAbstraction took 672.73 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 68.1 MB in the beginning and 101.9 MB in the end (delta: -33.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:37,913 INFO L168 Benchmark]: Witness Printer took 35.59 ms. Allocated memory is still 125.8 MB. Free memory was 101.2 MB in the beginning and 99.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:37,916 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.57 ms. Allocated memory is still 104.9 MB. Free memory was 75.0 MB in the beginning and 75.0 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 233.63 ms. Allocated memory is still 104.9 MB. Free memory was 69.9 MB in the beginning and 81.2 MB in the end (delta: -11.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.31 ms. Allocated memory is still 104.9 MB. Free memory was 81.2 MB in the beginning and 80.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.94 ms. Allocated memory is still 104.9 MB. Free memory was 80.1 MB in the beginning and 79.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 347.08 ms. Allocated memory is still 104.9 MB. Free memory was 79.1 MB in the beginning and 68.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 672.73 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 68.1 MB in the beginning and 101.9 MB in the end (delta: -33.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 35.59 ms. Allocated memory is still 125.8 MB. Free memory was 101.2 MB in the beginning and 99.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 29]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int c, u, v, w, x, y, z; [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] z = __VERIFIER_nondet_int() [L19] u = x [L20] v = y [L21] w = z [L22] c = 0 [L23] COND TRUE x >= y [L24] EXPR c + 1 [L24] c = c + 1 [L25] COND FALSE !(z > 1) [L29] y + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 33 SDslu, 19 SDs, 0 SdLazy, 18 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 114 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...