./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_37f6dab9-4455-4f54-b55d-de38dcad3da3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_37f6dab9-4455-4f54-b55d-de38dcad3da3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_37f6dab9-4455-4f54-b55d-de38dcad3da3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_37f6dab9-4455-4f54-b55d-de38dcad3da3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c -s /tmp/vcloud-vcloud-master/worker/run_dir_37f6dab9-4455-4f54-b55d-de38dcad3da3/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_37f6dab9-4455-4f54-b55d-de38dcad3da3/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 [2020-11-30 00:55:27,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:55:27,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:55:27,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:55:27,957 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:55:27,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:55:27,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:55:27,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:55:27,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:55:27,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:55:27,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:55:27,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:55:27,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:55:27,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:55:27,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:55:27,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:55:27,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:55:27,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:55:27,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:55:27,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:55:27,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:55:27,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:55:27,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:55:27,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:55:27,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:55:27,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:55:27,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:55:27,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:55:27,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:55:28,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:55:28,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:55:28,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:55:28,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:55:28,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:55:28,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:55:28,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:55:28,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:55:28,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:55:28,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:55:28,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:55:28,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:55:28,012 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_37f6dab9-4455-4f54-b55d-de38dcad3da3/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-30 00:55:28,036 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:55:28,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:55:28,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:55:28,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:55:28,039 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:55:28,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:55:28,040 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:55:28,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:55:28,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:55:28,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:55:28,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:55:28,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:55:28,041 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 00:55:28,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:55:28,042 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:55:28,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:55:28,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:55:28,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:55:28,043 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:55:28,044 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:55:28,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:55:28,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:55:28,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:55:28,045 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:55:28,045 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:55:28,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:55:28,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:55:28,046 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:55:28,046 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_37f6dab9-4455-4f54-b55d-de38dcad3da3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_37f6dab9-4455-4f54-b55d-de38dcad3da3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00d107e65807c328c5ca82cfbd5c365270dccab4 [2020-11-30 00:55:28,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:55:28,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:55:28,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:55:28,422 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:55:28,423 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:55:28,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_37f6dab9-4455-4f54-b55d-de38dcad3da3/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c [2020-11-30 00:55:28,501 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_37f6dab9-4455-4f54-b55d-de38dcad3da3/bin/uautomizer/data/d884a676d/d662efedffff4df1a4bb2d1a1253074e/FLAGc38632007 [2020-11-30 00:55:29,076 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:55:29,078 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_37f6dab9-4455-4f54-b55d-de38dcad3da3/sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c [2020-11-30 00:55:29,089 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_37f6dab9-4455-4f54-b55d-de38dcad3da3/bin/uautomizer/data/d884a676d/d662efedffff4df1a4bb2d1a1253074e/FLAGc38632007 [2020-11-30 00:55:29,444 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_37f6dab9-4455-4f54-b55d-de38dcad3da3/bin/uautomizer/data/d884a676d/d662efedffff4df1a4bb2d1a1253074e [2020-11-30 00:55:29,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:55:29,448 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:55:29,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:55:29,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:55:29,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:55:29,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:55:29" (1/1) ... [2020-11-30 00:55:29,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fcdd1f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:29, skipping insertion in model container [2020-11-30 00:55:29,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:55:29" (1/1) ... [2020-11-30 00:55:29,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:55:29,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:55:29,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:55:29,695 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:55:29,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:55:29,733 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:55:29,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:29 WrapperNode [2020-11-30 00:55:29,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:55:29,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:55:29,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:55:29,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:55:29,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:29" (1/1) ... [2020-11-30 00:55:29,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:29" (1/1) ... [2020-11-30 00:55:29,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:55:29,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:55:29,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:55:29,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:55:29,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:29" (1/1) ... [2020-11-30 00:55:29,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:29" (1/1) ... [2020-11-30 00:55:29,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:29" (1/1) ... [2020-11-30 00:55:29,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:29" (1/1) ... [2020-11-30 00:55:29,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:29" (1/1) ... [2020-11-30 00:55:29,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:29" (1/1) ... [2020-11-30 00:55:29,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:29" (1/1) ... [2020-11-30 00:55:29,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:55:29,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:55:29,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:55:29,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:55:29,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37f6dab9-4455-4f54-b55d-de38dcad3da3/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 [2020-11-30 00:55:29,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:55:29,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:55:30,231 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:55:30,233 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 00:55:30,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:55:30 BoogieIcfgContainer [2020-11-30 00:55:30,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:55:30,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:55:30,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:55:30,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:55:30,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:55:29" (1/3) ... [2020-11-30 00:55:30,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2fa9e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:55:30, skipping insertion in model container [2020-11-30 00:55:30,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:29" (2/3) ... [2020-11-30 00:55:30,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2fa9e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:55:30, skipping insertion in model container [2020-11-30 00:55:30,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:55:30" (3/3) ... [2020-11-30 00:55:30,248 INFO L111 eAbstractionObserver]: Analyzing ICFG NoriSharma-FSE2013-Fig8.c [2020-11-30 00:55:30,259 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:55:30,264 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-11-30 00:55:30,276 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-11-30 00:55:30,310 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:55:30,311 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:55:30,311 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:55:30,311 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:55:30,312 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:55:30,312 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:55:30,312 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:55:30,312 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:55:30,331 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-11-30 00:55:30,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-30 00:55:30,336 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:55:30,338 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-30 00:55:30,340 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]=== [2020-11-30 00:55:30,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:30,349 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2020-11-30 00:55:30,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:30,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845429113] [2020-11-30 00:55:30,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:55:30,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:55:30,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845429113] [2020-11-30 00:55:30,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:55:30,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 00:55:30,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456466924] [2020-11-30 00:55:30,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:55:30,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:55:30,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:55:30,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:55:30,551 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 3 states. [2020-11-30 00:55:30,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:55:30,628 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2020-11-30 00:55:30,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:55:30,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-30 00:55:30,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:55:30,636 INFO L225 Difference]: With dead ends: 35 [2020-11-30 00:55:30,637 INFO L226 Difference]: Without dead ends: 22 [2020-11-30 00:55:30,639 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 [2020-11-30 00:55:30,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-30 00:55:30,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2020-11-30 00:55:30,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-30 00:55:30,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-11-30 00:55:30,674 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 3 [2020-11-30 00:55:30,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:55:30,674 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-30 00:55:30,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:55:30,675 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-11-30 00:55:30,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 00:55:30,675 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:55:30,675 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 00:55:30,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:55:30,676 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]=== [2020-11-30 00:55:30,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:30,677 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2020-11-30 00:55:30,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:30,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274481476] [2020-11-30 00:55:30,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:55:30,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:55:30,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274481476] [2020-11-30 00:55:30,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:55:30,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 00:55:30,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105047244] [2020-11-30 00:55:30,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:55:30,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:55:30,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:55:30,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:55:30,714 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 3 states. [2020-11-30 00:55:30,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:55:30,729 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-11-30 00:55:30,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:55:30,730 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-30 00:55:30,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:55:30,731 INFO L225 Difference]: With dead ends: 21 [2020-11-30 00:55:30,731 INFO L226 Difference]: Without dead ends: 20 [2020-11-30 00:55:30,732 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 [2020-11-30 00:55:30,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-30 00:55:30,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-30 00:55:30,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-30 00:55:30,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-11-30 00:55:30,737 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 4 [2020-11-30 00:55:30,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:55:30,737 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-11-30 00:55:30,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:55:30,738 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-11-30 00:55:30,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 00:55:30,738 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:55:30,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:55:30,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:55:30,739 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]=== [2020-11-30 00:55:30,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:30,740 INFO L82 PathProgramCache]: Analyzing trace with hash 925739533, now seen corresponding path program 1 times [2020-11-30 00:55:30,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:30,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356963803] [2020-11-30 00:55:30,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:55:30,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:55:30,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356963803] [2020-11-30 00:55:30,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:55:30,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 00:55:30,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637400550] [2020-11-30 00:55:30,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:55:30,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:55:30,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:55:30,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:55:30,789 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 3 states. [2020-11-30 00:55:30,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:55:30,826 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2020-11-30 00:55:30,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:55:30,827 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-30 00:55:30,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:55:30,827 INFO L225 Difference]: With dead ends: 20 [2020-11-30 00:55:30,828 INFO L226 Difference]: Without dead ends: 19 [2020-11-30 00:55:30,828 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 [2020-11-30 00:55:30,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-30 00:55:30,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-30 00:55:30,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-30 00:55:30,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-11-30 00:55:30,833 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 6 [2020-11-30 00:55:30,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:55:30,833 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-11-30 00:55:30,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:55:30,834 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-11-30 00:55:30,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 00:55:30,834 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:55:30,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:55:30,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:55:30,835 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]=== [2020-11-30 00:55:30,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:30,837 INFO L82 PathProgramCache]: Analyzing trace with hash 925739853, now seen corresponding path program 1 times [2020-11-30 00:55:30,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:30,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411848368] [2020-11-30 00:55:30,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:30,854 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:30,883 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:30,899 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:55:30,900 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:55:30,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 00:55:30,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:55:30 BoogieIcfgContainer [2020-11-30 00:55:30,918 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:55:30,919 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:55:30,919 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:55:30,919 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:55:30,920 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:55:30" (3/4) ... [2020-11-30 00:55:30,924 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 00:55:30,974 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_37f6dab9-4455-4f54-b55d-de38dcad3da3/bin/uautomizer/witness.graphml [2020-11-30 00:55:30,974 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:55:30,976 INFO L168 Benchmark]: Toolchain (without parser) took 1527.59 ms. Allocated memory was 90.2 MB in the beginning and 130.0 MB in the end (delta: 39.8 MB). Free memory was 62.9 MB in the beginning and 90.8 MB in the end (delta: -28.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:30,977 INFO L168 Benchmark]: CDTParser took 0.92 ms. Allocated memory is still 90.2 MB. Free memory was 46.9 MB in the beginning and 46.9 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:55:30,977 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.63 ms. Allocated memory is still 90.2 MB. Free memory was 62.7 MB in the beginning and 69.3 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:30,978 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.52 ms. Allocated memory is still 90.2 MB. Free memory was 69.3 MB in the beginning and 68.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:55:30,978 INFO L168 Benchmark]: Boogie Preprocessor took 33.34 ms. Allocated memory is still 90.2 MB. Free memory was 68.0 MB in the beginning and 67.1 MB in the end (delta: 954.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:55:30,979 INFO L168 Benchmark]: RCFGBuilder took 425.96 ms. Allocated memory is still 90.2 MB. Free memory was 67.1 MB in the beginning and 56.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:30,979 INFO L168 Benchmark]: TraceAbstraction took 679.14 ms. Allocated memory was 90.2 MB in the beginning and 130.0 MB in the end (delta: 39.8 MB). Free memory was 56.4 MB in the beginning and 92.6 MB in the end (delta: -36.2 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:30,980 INFO L168 Benchmark]: Witness Printer took 55.73 ms. Allocated memory is still 130.0 MB. Free memory was 92.6 MB in the beginning and 90.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:30,983 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92 ms. Allocated memory is still 90.2 MB. Free memory was 46.9 MB in the beginning and 46.9 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 284.63 ms. Allocated memory is still 90.2 MB. Free memory was 62.7 MB in the beginning and 69.3 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.52 ms. Allocated memory is still 90.2 MB. Free memory was 69.3 MB in the beginning and 68.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.34 ms. Allocated memory is still 90.2 MB. Free memory was 68.0 MB in the beginning and 67.1 MB in the end (delta: 954.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 425.96 ms. Allocated memory is still 90.2 MB. Free memory was 67.1 MB in the beginning and 56.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 679.14 ms. Allocated memory was 90.2 MB in the beginning and 130.0 MB in the end (delta: 39.8 MB). Free memory was 56.4 MB in the beginning and 92.6 MB in the end (delta: -36.2 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * Witness Printer took 55.73 ms. Allocated memory is still 130.0 MB. Free memory was 92.6 MB in the beginning and 90.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. 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, 0.0s 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, 0.1s 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...