./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 7660a5e2f9f2a21129eb39e58701014cfc465dc2 ..................................................................................................................................................................................................................................... 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 0.2.0-5485861 [2020-10-26 04:06:04,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:06:04,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:06:05,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:06:05,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:06:05,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:06:05,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:06:05,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:06:05,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:06:05,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:06:05,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:06:05,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:06:05,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:06:05,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:06:05,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:06:05,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:06:05,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:06:05,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:06:05,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:06:05,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:06:05,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:06:05,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:06:05,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:06:05,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:06:05,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:06:05,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:06:05,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:06:05,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:06:05,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:06:05,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:06:05,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:06:05,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:06:05,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:06:05,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:06:05,059 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:06:05,059 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:06:05,060 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:06:05,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:06:05,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:06:05,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:06:05,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:06:05,064 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-26 04:06:05,108 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:06:05,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:06:05,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:06:05,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:06:05,112 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:06:05,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:06:05,113 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:06:05,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:06:05,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:06:05,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 04:06:05,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 04:06:05,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 04:06:05,114 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-26 04:06:05,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:06:05,114 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:06:05,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 04:06:05,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:06:05,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:06:05,116 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 04:06:05,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 04:06:05,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:06:05,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:06:05,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 04:06:05,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 04:06:05,117 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:06:05,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 04:06:05,118 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 04:06:05,118 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:06:05,118 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7660a5e2f9f2a21129eb39e58701014cfc465dc2 [2020-10-26 04:06:05,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:06:05,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:06:05,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:06:05,613 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:06:05,614 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:06:05,615 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c [2020-10-26 04:06:05,705 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44dc663e4/cd43051229404baea08884d53ab8adb9/FLAG72c711d94 [2020-10-26 04:06:06,278 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:06:06,279 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c [2020-10-26 04:06:06,286 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44dc663e4/cd43051229404baea08884d53ab8adb9/FLAG72c711d94 [2020-10-26 04:06:06,641 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44dc663e4/cd43051229404baea08884d53ab8adb9 [2020-10-26 04:06:06,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:06:06,651 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:06:06,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:06:06,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:06:06,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:06:06,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:06:06" (1/1) ... [2020-10-26 04:06:06,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fa6bfd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:06, skipping insertion in model container [2020-10-26 04:06:06,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:06:06" (1/1) ... [2020-10-26 04:06:06,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:06:06,693 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:06:06,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:06:06,872 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:06:06,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:06:06,902 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:06:06,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:06 WrapperNode [2020-10-26 04:06:06,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:06:06,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:06:06,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:06:06,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:06:06,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:06" (1/1) ... [2020-10-26 04:06:06,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:06" (1/1) ... [2020-10-26 04:06:06,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:06:06,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:06:06,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:06:06,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:06:06,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:06" (1/1) ... [2020-10-26 04:06:06,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:06" (1/1) ... [2020-10-26 04:06:06,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:06" (1/1) ... [2020-10-26 04:06:06,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:06" (1/1) ... [2020-10-26 04:06:06,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:06" (1/1) ... [2020-10-26 04:06:06,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:06" (1/1) ... [2020-10-26 04:06:06,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:06" (1/1) ... [2020-10-26 04:06:06,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:06:06,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:06:06,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:06:06,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:06:06,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-26 04:06:07,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:06:07,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:06:07,249 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:06:07,250 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-26 04:06:07,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:06:07 BoogieIcfgContainer [2020-10-26 04:06:07,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:06:07,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 04:06:07,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 04:06:07,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 04:06:07,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 04:06:06" (1/3) ... [2020-10-26 04:06:07,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eec6c13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:06:07, skipping insertion in model container [2020-10-26 04:06:07,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:06" (2/3) ... [2020-10-26 04:06:07,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eec6c13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:06:07, skipping insertion in model container [2020-10-26 04:06:07,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:06:07" (3/3) ... [2020-10-26 04:06:07,262 INFO L111 eAbstractionObserver]: Analyzing ICFG NoriSharma-FSE2013-Fig7.c [2020-10-26 04:06:07,274 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 04:06:07,280 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-10-26 04:06:07,296 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-26 04:06:07,326 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 04:06:07,326 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 04:06:07,327 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 04:06:07,327 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:06:07,327 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:06:07,327 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 04:06:07,328 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:06:07,328 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 04:06:07,344 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-10-26 04:06:07,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-26 04:06:07,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:06:07,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-26 04:06:07,351 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:06:07,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:06:07,359 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2020-10-26 04:06:07,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:06:07,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109382513] [2020-10-26 04:06:07,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:06:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:06:07,487 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:06:07,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:06:07,502 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:06:07,521 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:06:07,522 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 04:06:07,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 04:06:07,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 04:06:07 BoogieIcfgContainer [2020-10-26 04:06:07,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 04:06:07,543 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:06:07,543 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:06:07,544 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:06:07,544 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:06:07" (3/4) ... [2020-10-26 04:06:07,546 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-26 04:06:07,588 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:06:07,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:06:07,591 INFO L168 Benchmark]: Toolchain (without parser) took 943.67 ms. Allocated memory is still 48.2 MB. Free memory was 25.2 MB in the beginning and 26.2 MB in the end (delta: -958.3 kB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. [2020-10-26 04:06:07,592 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 39.8 MB. Free memory was 17.6 MB in the beginning and 17.6 MB in the end (delta: 31.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:06:07,593 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.13 ms. Allocated memory is still 48.2 MB. Free memory was 24.6 MB in the beginning and 27.2 MB in the end (delta: -2.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:06:07,593 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.76 ms. Allocated memory is still 48.2 MB. Free memory was 27.2 MB in the beginning and 25.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:06:07,594 INFO L168 Benchmark]: Boogie Preprocessor took 19.40 ms. Allocated memory is still 48.2 MB. Free memory was 25.8 MB in the beginning and 24.9 MB in the end (delta: 894.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:06:07,595 INFO L168 Benchmark]: RCFGBuilder took 293.77 ms. Allocated memory is still 48.2 MB. Free memory was 24.8 MB in the beginning and 27.0 MB in the end (delta: -2.1 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2020-10-26 04:06:07,596 INFO L168 Benchmark]: TraceAbstraction took 289.05 ms. Allocated memory is still 48.2 MB. Free memory was 26.6 MB in the beginning and 27.8 MB in the end (delta: -1.2 MB). Peak memory consumption was 423.1 kB. Max. memory is 16.1 GB. [2020-10-26 04:06:07,597 INFO L168 Benchmark]: Witness Printer took 45.25 ms. Allocated memory is still 48.2 MB. Free memory was 27.8 MB in the beginning and 26.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:06:07,605 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 39.8 MB. Free memory was 17.6 MB in the beginning and 17.6 MB in the end (delta: 31.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 250.13 ms. Allocated memory is still 48.2 MB. Free memory was 24.6 MB in the beginning and 27.2 MB in the end (delta: -2.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.76 ms. Allocated memory is still 48.2 MB. Free memory was 27.2 MB in the beginning and 25.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.40 ms. Allocated memory is still 48.2 MB. Free memory was 25.8 MB in the beginning and 24.9 MB in the end (delta: 894.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 293.77 ms. Allocated memory is still 48.2 MB. Free memory was 24.8 MB in the beginning and 27.0 MB in the end (delta: -2.1 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 289.05 ms. Allocated memory is still 48.2 MB. Free memory was 26.6 MB in the beginning and 27.8 MB in the end (delta: -1.2 MB). Peak memory consumption was 423.1 kB. Max. memory is 16.1 GB. * Witness Printer took 45.25 ms. Allocated memory is still 48.2 MB. Free memory was 27.8 MB in the beginning and 26.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int a, b, c, i, j, M, N; [L16] i = __VERIFIER_nondet_int() [L17] j = __VERIFIER_nondet_int() [L18] M = __VERIFIER_nondet_int() [L19] N = __VERIFIER_nondet_int() [L20] a = i [L21] b = j [L22] c = 0 [L23] COND TRUE i